Page 2 Microsoft Corporation in the United States and other countries. Alexion is a trademark of Toshiba Medical Systems Corporation. This manual may include trademarks of other companies. Note that the  mark and the  mark may or may not be used in this manual.
Page 3 REVISION RECORD REASON PAGE REV. DATE SER. DOC. (YYYY-MM) /AUTHOR CHANGED PRODUCT. INI. 2011-09 Mr. Tezuka ------- TM-WI2 2012-04 Support of improvement requests Mr. Tezuka Sections 2, 3 2012-07 Use of GMSC PWB Mr. Oishi Section 3 TM-WI2G 2012-08 Support of KSX77-2910 Mr.
Page 4 THIS PAGE IS LEFT BLANK INTENTIONALLY. No. 2D201-176EN*D...
Page 5 How to Use This Manual Effectively No. 2D201-176EN*D...
Page 6 Notation Conventions This manual uses the following conventions for word usage in addition to the signal words (refer to "General Safety Information") that indicate remarks related to safety precautions. Carefully read the contents of this manual before performing service work. NOTE: Indicates information of interest to users of equipment as to exceptional conditions or operating procedures.
Page 7 Table of Contents How to Use This Manual Effectively ..............5 General Safety Information ................... 15 CHAPTER 1 CONFIGURATION OF GANTRY ..23 Configuration of Gantry ..............24 1.1.1 Stand unit ......................25 1.1.2 Main frame unit ....................28 1.1.3 X-ray beam control unit ................
Page 8 1.4.3 Replacing the X-ray tube ................65 1.4.4 Replacement of the large-current slip ring brushes ....... 71 1.4.5 Replacing the gas spring ................74 1.4.6 Replacing the 42-kW HFG (CXXG-010A) ..........76 1.4.7 Replacing the rotation motor ..............84 Adjustment and Cleaning of Each Section ......
Page 9 2.2.7 Upper covers ....................115 2.2.8 Lower covers ....................125 Troubleshooting and Repair ............127 Procedures for Moving the Patient Couch Upwards/Downwards When the Patient Couch Malfunctions ....................132 2.4.1 Jacking up the patient couch ..............132 2.4.2 Lowering the patient couch ..............
Page 10 3.3.2 Block diagram of the system ..............171 3.3.3 Control target, function, outline ............172 3.3.4 Composition and explanation of each unit ........173 3.3.5 Control flow ....................177 3.3.6 Interlock ......................179 3.3.7 List of fuses used for the gantry ............
Page 11 3.6.2 Detailed KGTSM status codes (Including error codes and interlock information) ................242 3.6.3 KGTSM timer checks (Including timer errors) ......... 270 3.6.4 GMSC messages ..................271 3.6.5 Detailed GMSC status codes (including error codes and interlock information) ................276 Gantry Rotation ..................
Page 12 3.8.6 Procedure for setting the couch vertical movement stop position in auto-set mode .............. 358 3.8.7 Adjustment of couch height displays ..........359 3.8.8 Checking the couch top speed .............. 360 For GMSC ....................361 3.9.1 Types of control data for the gantry and patient couch ....
Page 13 3.10.8 Check of safety circuit on the KGTSM PWB ........421 3.10.9 Check of safety circuit on the GMSC PWB ........428 3.10.10 Additional data ....................429 No. 2D201-176EN*D...
Page 14 No. 2D201-176EN*D...
Page 15 General Safety Information No. 2D201-176EN*D...
Page 16 Meaning of Signal Words DANGER WARNING CAUTION In this manual, the signal words , and are used regarding important safety instructions. The signal words and their meanings are defined as follows. Please understand their meanings clearly before reading this manual. Signal word Meaning Indicates an imminently hazardous situation which, if not avoided,...
Page 17 Safety Precautions Please observe the following precautions to ensure the safety of the service engineer as well as operators when servicing this equipment. DANGER: 1. This system is not explosion-proof. Therefore, do not use flammable or explosive gases near the system. If flammable or explosive gases enter the system, a fire or explosion may occur.
Page 18 WARNING: 1. Before starting service procedures, turn OFF the breaker and all the system power switches on the distribution board. (To ensure safety.) 2. Make sure that ground cables are securely connected for electrical shock prevention and stable system operation. 3.
Page 19 CAUTION: 1. Do not modify or repair the system without permission. Failure to do so may result in system malfunction or incorrect system operation. 2. When repair or replacement work must be temporarily interrupted, take appropriate measures such as closing the covers etc. to ensure safety.
Page 20 CAUTION: 15. Be sure to connect the optical fiber cable correctly. If the cable is connected incorrectly, discontinuity of the image will result. 16. No connections should be made to the HUB ports in the Navibox except for those already provided at the time of shipment or those specified as options.
Page 21 CAUTION: 11. When performing wiring again, do not bundle the power cable with the signal cables. 12. When adjusting the XC maintenance program parameters, do not change the settings for parameters other than If. Doing so may damage the generator. 13.
Page 22 Precautions for Service Work Countermeasures against static electricity If service work is performed at sites at which countermeasures against static electricity are not taken, be sure to take countermeasures against static electricity to prevent the PWBs from being damaged and to ensure quality. [Examples] ...
Page 23 CHAPTER 1 CONFIGURATION OF GANTRY No. 2D201-176EN*D...
Page 24 Configuration of Gantry Gantry Stand unit Tilt drive unit Tilt detection unit Electrical components unit and terminals Main frame unit Slip ring unit Optical data transmission unit Rotation drive unit Electrical components unit X-ray beam X-ray tube mounting unit control unit Wedge filter unit Slit unit Electrical components unit...
Page 25 1.1.1 Stand unit The stand unit tilts the main frame unit relative to the vertical axis of the gantry in order to scan an oblique section of the patient. The tilt drive unit is located at the left of the gantry as viewed from the patient couch. The main frame unit is tilted using the arm which is mounted on the main frame unit and is driven by the power cylinder.
Page 26 Pillow block Encoder Encoder mounting plate Gear (small) Tilt Gear (large) detection Microswitch unit Microswitch dog (+ tilt side) Microswitch dog (- tilt side) Gas spring Movement of the tilt detection section No. 2D201-176EN*D...
Page 27 No. 2D201-176EN*D...
Page 28 1.1.2 Main frame unit The main frame unit consists of the slip ring unit, the optical data transfer unit, the control unit, and the rotation drive unit. This unit rotates the gantry, and signals and power are transmitted/received between the rotation section and the stationary section. 1.1.2.1 Slip ring unit The slip ring unit supplies power to the X-ray high-voltage generator etc.
Page 29 Main frame unit (front) Main frame unit (rear) No. 2D201-176EN*D...
Page 30 1.1.2.2 Rotation drive unit The rotation drive unit rotates the gantry rotation section at maximum speed 0.75 rotation per second. This unit comprises the motor, the small pulley, the timing belt, the large pulley, and the timing belt-tension adjustment fitting. The outline drawing is shown in the figure below.
Page 31 1.1.3 X-ray beam control unit The function of the X-ray beam control unit is to control the dose and quality of X-rays generated from the X-ray tube. The unit includes the wedge filter for limiting X-rays to the appropriate level before they reach the patient, and the slit unit for setting the slice thickness of the patient.
Page 32 1.1.3.1 X-ray tube mounting unit The X-ray tube is mounted on a stage which can be moved in the X or Y directions for position adjustment. The X-ray tube is fixed at the X-ray beam port with four bolts and fixed by the reinforcement bracket, which ensures safety if the bolts are broken.
Page 33 1.1.3.2 Wedge filter unit The wedge filter unit is placed between the patient and the X-ray tube to limit the X-rays that pass through the patient, reducing the exposure dose to the patient and also preventing interference in processing by excessive exposure. P wedge Wedge filter unit No.
Page 34 1.1.3.3 Slit unit (1) Slit movement The slit unit controls the width of X-ray beams passing through the patient according to the selected slice thickness. Four slice thicknesses are available: 1, 2, 3, and 4 mm Slice thicknesses of 0.5 mm and 5 mm are not required in the system requirement specifications.
Page 35 Slit plates Slit drive motor Slit unit (2) Motor rotation and slit movement direction Counterclockwise motor rotation makes slit width wider and clockwise motor rotation makes slit width narrower. No. 2D201-176EN*D...
Page 36 (including replacements and adjustments). When troubleshooting is unsuccessful, report the details of the symptoms and the maintenance procedures taken to Toshiba Engineering personnel in charge. Example 1: Generation of abnormal sounds 1) Locate the source.
Page 37 1.2.1 Troubleshooting and repair of the tilt section No. 2D201-176EN*D...
Page 38 1.2.2 Troubleshooting and repair of the rotation section No. 2D201-176EN*D...
Page 39 No. 2D201-176EN*D...
Page 40 No. 2D201-176EN*D...
Page 41 1.2.3 Troubleshooting and repair of the slip ring section No. 2D201-176EN*D...
Page 42 No. 2D201-176EN*D...
Page 43 1.2.4 Troubleshooting and repair of the slit section No. 2D201-176EN*D...
Page 44 Maintenance Sections and Cover Opening/Closing This subsection describes sections of the TSX-033A scanner that require maintenance and the covers which must be removed to reach these sections. See the table and figure below. (An uppercase letter in the figure below is used to identify a cover.) WARNING: Firmly engage the support bar...
Page 45 [C]: GTS inspection window [B]: Side cover (right) Mylar ring [A]: Front cover Front under cover [E]: Top cover [I]: Rear cover (right) [D]: Side cover (left) [F]: Rear dome [H]: Rear cover cover (left) [G]: Rotation mechanical stopper inspection Rear base covers window Maintenance section...
Page 46 1.3.1 Procedures for removing/mounting the Mylar ring Front cover Joint Mylar ring Dome cover View with Mylar ring removed 1.3.1.1 Removal procedure Remove the two M4 screws from the Mylar sheet. Figure viewed from the patient couch No. 2D201-176EN*D...
Page 47 1.3.1.2 Mounting procedure <Work procedure> (1) Arrange the Mylar sheet so that it hangs as shown in the figure below and secure it with M4 screws. Dome Figure viewed from the patient couch (2) The Mylar ring is provided with rubber parts as shown in the figure below (standard status).
Page 48 (3) Adjust the Mylar ring so that there is no difference in level between the Mylar ring surface and the dome cover surface around the entire circumference. The section that is bent inward must be pressed against the dome cover. In this status, use a scale to perform measurement as shown in the figure below and confirm that the Mylar ring is in close contact with the dome within the range of ±100 mm from the lower center of the dome (d ...
Page 49 1.3.2 Opening/Closing the front cover <Work procedure> (1) Move the couch to the DOWN limit position. (2) Remove the front under cover. 2-M4 2-M4 Washer (left and right) 1-M4 (3) Remove the Mylar ring. (4) Remove the fixing screws from the under part of the front cover and the side cover. (5) Pull up the front cover, pull the front under portion with hands.
Page 50 (6) Remove the supporting pipe from the front cover at the left. (7) Insert the supporting pipe into the square hole. (8) Remove the supporting pipe from the front cover at the right. (9) Insert the supporting pipe into the square hole. The closing procedure is the reverse of the opening procedure described above.
Page 51 Ceiling No. 2D201-176EN*D...
Page 52 1.3.3 Removing/Mounting the side cover <Work procedure> (1) Remove the screws (right: three screws, left: three screws) from the side and top of the side cover. (2) Lift the side cover while sliding it towards the rear and remove it. The mounting procedure is the reverse of the removing procedure described above.
Page 53 1.3.4 Removing/Mounting the rear-upper cover <Work procedure> (1) Remove the screws from the rear and the side of the lower section. (At this time, the M4 screws at the locations marked with * in the figure below (2 locations) must be tightened together with the left and right covers.) (2) Remove this cover while lifting it slightly.
Page 54 1.3.5 Removing/Mounting the dome cover DANGER: Turn OFF all the breakers on the distribution board before removing the dome cover. High voltage in the slip ring and the brushes may cause electric shock. <Work procedure> (1) Turn OFF the breakers on the distribution board (this shuts down power supply to the slip ring unit).
Page 55 1.3.6 Removing/Mounting the top cover <Work procedure> (1) Remove the M4 screws (4 locations) referring to the following figure. (2) Remove the top cover in the upward direction. The mounting procedure is the reverse of the removal procedure described above. Top cover 4-M4 No.
Page 56 1.3.7 Method for manually tilting the gantry in the case of malfunction <Tools and parts required> (1) Standard tools 1 set (2) Socket wrench (10 mm) : <Work procedures> (1) Remove the left side cover. (2) Remove all base covers. (3) Use the socket wrench or impact wrench to rotate the motor output shaft nut (10 mm) of the power cylinder.
Page 57 Replacing Each Component 1.4.1 Replacing the projector lamp All the projectors are mounted to the rotation section and can be replaced independently. The pattern direction of the beam from each projector is described in the figure below. WARNING: The system employs a laser beam device. Do not look directly into the laser beam, as doing so could injure your eyes.
Page 58 1.4.2 Tilt drive unit maintenance 1.4.2.1 Lubricating the tilt detection unit <Tools and parts required> (1) Standard tools 1 set (2) Grease (Nichimori L grease) : Adequate amount For tilt encoder (3) Bar (for applying grease) (4) Rags Adequate amount (5) Grease (Idemitsu Kosan Sufficient amount ...
Page 59 Tilt detection unit No. 2D201-176EN*D...
Page 60 1.4.2.2 Replacing the power cylinder <Tools and parts> (1) Standard tools 1 set (2) Torque wrench (24.5 N  m (250 kgf  cm)) : (3) Torque wrench (4.4 N  m (45 kgf  cm)) (4) Yellow paint pen <Work procedure>...
Page 61 (11) Extract the shaft and remove the upper bracket. (12) Extract the lower-end shaft and remove the power cylinder. (13) Mount the bracket to the arm. The bracket mounting bolts (M8, 3 locations) must be tightened referring to the figure below. (14) Replace the bracket and manually rotate the rod of the new power cylinder to adjust the length.
Page 62 (22) Set the tilt to  30° again to confirm that there is no interference. 4-M12 Tilt-lock metal fitting M16 Tilt-lock metal fitting Tilt drive unit (right side of the gantry) No. 2D201-176EN*D...
Page 63 Bracket Shaft Shaft retaining metal fitting Dry bearing Shaft Shaft retaining metal fitting 2-M6 2-M16 Tilt drive unit (left side of the gantry) No. 2D201-176EN*D...
Page 64 M8 (3 locations) Tightening torque: 24.5 N m (250 kgf cm) Yellow paint M6 (2 locations) Tightening torque: 4.4 N m (45 kgf cm) Yellow paint Power cylinder motor output shaft Bracket section at the upper part of the power cylinder No.
Page 65 1.4.3 Replacing the X-ray tube DANGER: When disconnecting the high-voltage cable, observe the following to fully discharge its residual charge in order to ensure safety during servicing work.  Turn power OFF and wait ten minutes or more.  When the high-voltage cable has been disconnected, simultaneously ground two of the three pins at the top of the bushing in all three combinations.
Page 66 CAUTION: When replacing the X-ray tube, be careful because the X-ray tube may move longitudinally during this work. In addition, insert the mechanical stopper bolt securely into the hole and tighten the retaining nut. Failure to do so may result in personal injury or damage to the system.
Page 67 (9) Slowly rotate the rotate section manually to move the X-ray tube to the position near the GTS-ASSY. When the front cover is opened Move the X-ray tube to the position near the GTS-ASSY. (In this status, disconnect the cables from the X-ray tube and replace the X-ray tube and the oil cooler.) (10) Engage the mechanical stopper and re-engage the rotation motor brake.
Page 68 (15) Remove the X-ray tube reinforcement plate and remove the X-ray tube mounting plate mounting bolts (M12  4). CAUTION: Be careful about the tube because the tube may move longitudinally during this work. (16) Remove the oil cooler mounting screws from the oil cooler mounting plate. Hold the oil cooler firmly to prevent it from swinging when the bolt is removed.
Page 69 (20) Remount the components to the rotation base, in the order of the oil cooler, the tube, etc., by reversing the steps from (1) to (18). The mounting screws must be tightened to the torque specified in subsection 1.6 "Important Fastening Assemblies of Each Unit". Reinforcement bracket X-ray tube Adjustment...
Page 70 Oil hose mounting bracket Oil cooler mounting bracket Oil cooler Oil cooler and mounting plate No. 2D201-176EN*D...
Page 71 1.4.4 Replacement of the large-current slip ring brushes DANGER: Be sure to turn OFF all the breakers on the distribution board if it is necessary to touch the slip ring or brushes. High voltage in the slip ring and the brushes may cause electric shock.
Page 72 <Work flow> CAUTION: Be sure to turn OFF the power of the distribution board before this work. Remove the Mylar ring, the left and right rear covers, and the dome cover. Disconnect the brush holder cable terminal and remove the brush holder.
Page 73 Burr Limit line No. 2D201-176EN*D...
Page 74 1.4.5 Replacing the gas spring <Tools required> (1) Plastic hammer : (2) Standard tools : 1 set <Work procedure> (1) Remove the right rear cover (GTS side) and tilt the gantry to the -30° position. (2) Loosen the fixing bolts (3-M8) of the gas spring lower section mounting plate. (3) Loosen the push-pull bolt to move the mounting plate until it reaches the lowest position.
Page 75 Gas spring Push-pull bolt Mounting plate 3-M8 fixing bolt No. 2D201-176EN*D...
Page 76 1.4.6 Replacing the 42-kW HFG (CXXG-010A) WARNING: 1. When a part of the rotation section of the gantry is to be removed, be sure to insert a mechanical stopper. Otherwise, the rotation section may rotate suddenly due to weight imbalance and a worker may be caught in the rotation section as a result.
Page 77 DANGER: Before disconnecting cables or removing covers, wait for at least five minutes after turning OFF the power supply. Failure to observe this warning may result in serious injury or death. The AC/CONTROL and INVERTER/HV sections contain some parts that are not insulated.
Page 78 1.4.6.1 Replacing the AC/CONTROL chassis <Tools required> (1) Torque wrench (34.3 N  m (350 kgf  cm)) (9.8 N  m (100 kgf  cm)) (2) Yellow paint pen (3) Standard tools 1 set (4) Hex keys for the hexagonal socket head bolts 1 set (5) HFG replacement jigs (AAB067-01) <Work procedure>...
Page 79 (8) Slowly rotate the CONVERTER chassis manually to the position near the GTS- ASSY, and turn OFF gantry power supply CP1 after locking the mechanical stopper. (9) Disconnect the three cables and the ground cable from the AC/CONTROL power input section. (10) Remove the cap from the front of the AC/CONTROL chassis and disconnect the connector inserted in the XC PWB.
Page 80 CAUTION: Confirm that the HFG replacement jigs are mounted securely using a hex key for hexagonal socket head bolts before removing the two remaining R-BASE mounting bolts. Otherwise, the unit may fall during replacement work, resulting in personal injury. (14) Mount the two brackets to the new chassis. At this time, use a torque wrench to tighten the eleven M6 bolts with a torque of 9.8 N ...
Page 81 1.4.6.2 Replacing the HV/INVERTER chassis <Tools required> (1) Torque wrench (34.3 N  m (350 kgf  cm)) (9.8 N  m (100 kgf  cm)) (2) Yellow paint pen (3) Standard tools 1 set (4) Hex keys for the hexagonal socket head bolts 1 set (5) HFG replacement jigs (AAB067-01) <Work procedure>...
Page 82 (9) Remove the high-voltage cable. DANGER: When disconnecting the high-voltage cable, observe the following to fully discharge its residual charge in order to ensure safety during servicing work.  Turn power OFF and wait ten minutes or more.  When the high-voltage cable has been disconnected, simultaneously ground two of the three pins at the top of the bushing in all three combinations.
Page 83 (12) Remove the bracket and the two remaining R-BASE mounting bolts. Then remove the INV/HV chassis along the jigs (AAB067-01) and lower it to the floor. CAUTION: Confirm that the HFG replacement jigs are mounted securely using a hex key for hexagonal socket head bolts before removing the two remaining R-BASE mounting bolts.
Page 84 (20) Turn ON the breaker on the distribution board for the gantry rotation section power supply and then turn ON gantry breaker NFB5. (21) After confirming that power is turned ON normally, readjust the HFG as required. 1.4.7 Replacing the rotation motor <Tools and parts required>...
Page 85 Adjustment and Cleaning of Each Section 1.5.1 Tilt angle adjustment The tilt detection unit must be adjusted so that the tilt stop positions conform to the standards listed in the table below. When the angle is measured, set an angle measurement level on the tube mounting plate as shown in the figure below.
Page 86 To adjust the encoder, loosen the screw of the encoder mounting plate and rotate the encoder gear by hand. Pillow block Encoder Encoder mounting plate Gear (small) Tilt Gear (large) detection Microswitch unit Microswitch dog (+ tilt side) Microswitch dog (- tilt side) Gas spring No.
Page 87 1.5.2 Rotation adjustment 1.5.2.1 Rotation speed adjustment See chapter 3 "GANTRY/COUCH CONTROL SECTION". 1.5.2.2 Rotation belt tension adjustment <Measuring instrument and tools required> (1) Sonic belt tension gauge :  Model STM303  Manufacturer Unitta Co., Ltd. If the sonic belt tension gauge is not available, follow the procedure described in "Flow of work using a push-pull gauge"...
Page 88 Adjustment procedure using the sonic belt tension gauge <Work procedure> (1) Remove the rear covers (left and right) and open the GTS inspection window and the front cover. (2) Turn OFF CP320 of the servo amplifier. (3) Loosen the screws for securing the bolt-tension adjustment bracket. (4) Loosen the motor securing bolts from the front cover side.
Page 89 (7) Place the sensor of the sonic belt tension gauge near the belt, and pluck both edges of the belt with your fingers to measure the tension. The measuring points are at four locations: tube 0°, 90°, 180°, and 270° positions. Make three measurements at each measuring point of the left and the right and calculate the average.
Page 90 Flow of work using a push-pull gauge <Work procedure> (1) Remove the rear covers (upper and under) and open the GTS inspection window. (2) Turn OFF circuit protector CP320. (3) Push the center of the belt which is 120 mm above the small pulley with the push- pull gauge and measure a force required to displace the belt by 7 mm.
Page 91 1.5.3 Tube alignment 1.5.3.1 Outline <Tools required> (1) Torque wrench (34.3 N  m (350 kgf  cm)) : (2) Yellow paint pen (3) Dial gauge <Work procedure> (1) Remove the screws or Mylar ring from beneath the front cover and open the front cover.
Page 92 1.5.3.2 Front/rear tube alignment <Measurement method> Refer to the front/rear tube alignment procedures described in subsection 3.2 of the service manual software volume. <Adjustment method> Attach the dial gauge to the rotation base as shown in the figure below and place the pick-up of the dial gauge to the front of the tube mounting plate.
Page 93 1.5.3.3 Left/right tube alignment <Measurement method> Refer to the left/right tube alignment procedures described in subsection 3.3 of the service manual software volume. <Adjustment method> (1) Mounting the pin phantom The left/right tube alignment requires a pin phantom. Mount the pin phantom on the phantom holder as shown in the figure below.
Page 94 (2) Adjusting the tube left/right position Attach the dial gauge to the tube mounting plate as shown in the figure below and place the pick-up of the dial gauge to the tube. Then, loosen the fixing bolts to make the tube mounting plate free. Turn the adjusting bolts by the required number of turns according to the instructions of the software to adjust the left/right tube position.
Page 95 1.5.4 Projector adjustment procedure 1.5.4.1 Side and slant projector adjustment <Work procedure> (1) Set the water phantom in the phantom holder. Tape After confirming that the phantom has no irregularity, align the phantom with the center of the scanning area. (2) Use adhesive tape to attach strips of solder along Solder the slice line and the image center line of the...
Page 96 1.5.4.2 Median-line projector adjustment <Work procedure> (1) Move the head-side of the couch top Couch top (portion with the gray spots) so that it is below the median-line projector, raise the Gray spots couch to the UP limit. (2) Align the light beam pattern from the median-line projector with the gray spots.
Page 97 1.5.5 Procedure for cleaning the large-current slip ring DANGER: Be sure to turn OFF all the breakers on the distribution board if it is necessary to touch the slip ring and brushes. High voltage in the slip ring and the brushes may cause electric shock.
Page 98 <Tools and parts required> (1) Standard tools : 1 set (2) Sandpaper 1 sheet (3) Rag <Work procedure> CAUTION: Be sure to turn OFF the power of the distribution board before this work. (1) Remove the Mylar ring, the rear covers (left and right), and the dome cover. (2) Disconnect the brush holder cable terminal and remove the brush holder.
Page 99 1.5.6 Cover cleaning method To clean the front cover, dome cover, resin covers (such as the side cover, top cover, rear cover, and base cover), and the Mylar ring, wipe them using a cloth moistened with mild detergent or warm water and then thoroughly wrung out (to prevent dripping). Contact with volatile liquids such as alcohol may damage the coating of the covers.
Page 100 Oil cooler cable Optical system shield cover Slit High-votage cable Tube cable Removing the optical system No. 2D201-176EN*D...
Page 101 Optical system (slit, wedge) Shield cover Removing the optical system No. 2D201-176EN*D...
Page 102 Important Fastening Assemblies of Each Unit If the screws or bolts shown in the figures below are removed, use the appropriate torque wrench to tighten them with the corresponding tightening torque specified in the table below. After tightening, use yellow paint for paint-locking. Units mounted in the gantry No.
Page 103 Encoder <3> Tilt encoder gear setscrew Pillow block <4> Pillow-side gear mounting bolt Microswitch Tilt detection section Units mounted in the gantry (rear view) No. 2D201-176EN*D...
Page 104 Important fastening assemblies of each unit Tightening Important fastening assembly Type of screw/bolt Quantity torque Tilt power cylinder bracket mounting M8 (hexagonal socket head bolt), 83.3 Nm bolt 30-mm long (850 kgfcm) Power cylinder shaft retaining plate M6 (hexagonal head sems bolt), 4.4 Nm mounting bolt 12-mm long...
Page 105 CHAPTER 2 MECHANICAL SECTION OF THE PATIENT COUCH No. 2D201-176EN*D...
Page 106 Outline This chapter describes the principles of operation and repair methods for the patient couch CBTB-029A/029B.  The only difference between the CBTB-029A and the CBTB-029B is the length of the horizontal frame.  The descriptions in this manual focus on the CBTB-029A, and a note is added for any features unique to the CBTB-029B.
Page 107 Description of the Structure of the Main Patient Couch Unit No. 2D201-176EN*D...
Page 108 2.2.1 Main frame unit The main frame unit is mounted on the upper frame of the vertical movement mechanism. The couch top, couch-top drive unit, couch-top moving frame, and upper cover are installed on the main frame unit. Two LM (linear) guides that guide the longitudinal movement of the couch top and an extension frame permit the stroke (scanning range) to be extended.
Page 109 Engagement and release of the brake and clutch Operation status Brake Clutch When the power is OFF Engaged Released When the power is ON (other than free status) Released Engaged When the power is ON (free status) Released Released The longitudinal movement drive unit is responsible for linear movement of the couch top.
Page 110 2.2.3 Couch-top moving frame The couch-top moving frame, to which the longitudinal movement drive unit metal coupling is mounted, is moved horizontally along the LM (linear) guide by movement of a belt. The couch top is secured to the couch-top moving frame using bolts. Couch-top fixing bolt Couch top Metal coupling...
Page 111 2.2.4 Vertical movement mechanism The vertical movement mechanism includes the internal and external arms, the LM (linear) guide attached to these arms, and the upper and lower base on which the bearings slide. No. 2D201-176EN*D...
Page 112 2.2.5 Vertical movement drive section The vertical movement drive section moves the patient couch vertically under hydraulic power. The patient couch is moved upward by the ram of the single-action cylinder, which pushes the internal arm upward. A 200 W motor and gear pump supply oil from the oil tank to the cylinder. The patient couch is moved downward by actuating two electromagnetic valves to release the oil in the single-action cylinder.
Page 113 Hose Cylinder Electromagnetic Check valve valve Throttle valve Relief Pump valve Drain hose Oil pressure circuit diagram No. 2D201-176EN*D...
Page 114 2.2.6 Couch top The couch top is used to set the patient at the scanning position. The couch top is made of carbon fiber reinforced plastic (CFRP). Velcro tape is provided along the sides of the couch top for attaching the patient immobilizing bands.
Page 115 2.2.7 Upper covers The upper covers are used to protect the patient from the drive unit and to give the unit a finished appearance. The procedures for mounting and removing the upper covers are as follows: Be sure to turn OFF the power before mounting and removing the covers. 2.2.7.1 Disassembly and name of each part of the upper covers Upper covers...
Page 116 2.2.7.2 Upper cover mounting/removal procedures (1) Handle : Use the two M12 bolts to mount or remove the handle. (The handle can be removed by loosening the bolts.) No. 2D201-176EN*D...
Page 117 (2) Front cover (upper/lower) : Use the five M4 screws to mount or remove the upper/lower front cover. No. 2D201-176EN*D...
Page 118 When mounting the upper front cover, insert the ledges of the cover into the gaps below the rail covers at the joining sections. Ledge Front cover (upper) Joining section Rail cover To confirm that the front covers are mounted correctly, move the couch top without the handle to the IN limit and check the section where the rail cover and front covers meet.
Page 119 (3) Rear cover To mount/remove the rear cover, open the flap and install/remove the four M4 screws (two inside the flap and two on the bottom of the rear cover). When mounting the rear cover, check the position of the brake lever and mount the cover so that the brake lever protrudes from the opening in the rear cover.
Page 120 When mounting the rear cover, secure the cover using the pins and catches. In addition, check the following points.  Mount the handle and confirm that the clearance at the sections of the cover enclosed in circles is 5 mm or less. No.
Page 121 Move the couch top to the IN-LIMIT position and confirm that the clearance between the handle and the cover (indicated by "A") is 5 mm or less. If the clearance is more than 5 mm, remove the caps and adjust the height of the handle using the M4 bolts inside.
Page 122 (4) Side covers Remove the side covers <L> and <R> by removing five M4 screws for each. (5) Rail covers Move the couch top to the IN mechanical stopper. Remove rail covers <L> and <R> by removing eight M4 screws for each. When mounting the rail cover, tighten the screws on the side first and then tighten the screws on the top.
Page 123 (6) Maintenance cover Use the two caps and two M4 screws to mount or remove the maintenance cover. (7) Couch-top bottom covers (large and small) : Use the two M4 screws to mount or remove the couch- top bottom cover (small). (The couch-top bottom cover (small) is secured to the couch-top bottom cover (large) using pins.) Use the eight M4 screws to mount or remove the...
Page 124 The couch-top bottom covers (large and small) can be removed after the rear cover is removed. (Take care not to deform the couch-top bottom covers when removing them.) No. 2D201-176EN*D...
Page 125 2.2.8 Lower covers The lower covers include the flexible cover to protect the patient couch links and the base covers. (1) The base covers (L, R) are secured with the M4 screws (4 locations). When removing these covers, keep in mind that there is a leaf spring foot section for securing the flexible cover and a pin hole section for positioning the covers and pins.
Page 126 (2) Notes concerning the flexible cover (a) When lowering the flexible cover Loosen the M4 screws securing the hooks and remove the hooks. The flexible cover can then be lowered. Note that there are 7 hooks. (b) When raising the flexible cover Insert the screwdriver into the notches at the front and rear ends of the patient couch (2 locations) to loosen the M4 screws and remove the hooks.
Page 127 Troubleshooting and Repair Refer to the service manual, Gantry/Couch Control volume, for the electrical check items. Troubleshooting and repair actions Y: YES N: NO <Symptom> <Check> <Repair procedure> The patient couch Is the hydraulic pump in Check the patient couch does not go up.
Page 128 <Symptom> <Check> <Repair procedure> Oil leakage Visible oil leakage source? Replace the solenoid valve. Is the rate of sinking 0.7 mm/10 min or less? Troubleshoot again in detail. The couch top does Is the couch high enough? Move up the couch to the upper not go into the limit.
Page 129 <Symptom> <Check> <Repair procedure> The couch top does Is the motor in motion? Check whether the connector of not go out of the the OUT-limit sensor is gantry opening. disconnected or whether there are obstacles in the beam emitting/receiving section of the sensor.
Page 130 <Symptom> <Check> <Repair procedure> The couch top is Adjust the height of the rollers. jolted when it goes over the rollers. Heavy idle Is the belt tension OK? Adjust the belt tension as movement of the specified in this manual. couch top Are there any foreign Remove the foreign object.
Page 131 <Symptom> <Check> <Repair procedure> Noises in the Noises in the motor? Go to "Adjustment for Heavy Idle horizontal drive unit Movement of Couch". Check the couch top slide mechanism (LM guide) for foreign objects. Check whether the parameters for the slide servo amplifier are set correctly.
Page 132 Procedures for Moving the Patient Couch Upwards/Downwards When the Patient Couch Malfunctions 2.4.1 Jacking up the patient couch When the patient couch is disabled to move up from the DOWN limit, it must be jacked up for check of parts inside the patient couch. Jack up the patient couch as shown below with an automotive jack (rated for least 500 kg).
Page 133 (2) Place a 9 cm  9 cm platform on the side of the lower base and place a car jack on it. Set the jack to the upper frame and lift the frame gradually. A force of approx. 3 kN (300 kgf) is required to raise the couch top.
Page 134 2.4.2 Lowering the patient couch If a failure occurs when the patient couch is at a raised position (for example, a fuse in the gantry blows out and no power is supplied to the patient couch), lower the patient couch as specified below. CAUTION: During this operation, 200 VAC is supplied directly to the connector.
Page 135 (2) When 200 VAC is supplied between pins 8 and 10 of CNN1 and between pins 9 and 10, the solenoid valves for down movement are opened and the patient couch moves down. (There are two solenoid valves provided and pin 10 of CNN1 is a common pin.) NOTE: Recommended jig for lowering the patient couch...
Page 136 <e> Cable UL-compliant AWG14 wire coated with heat-resistant vinyl, with a rated voltage of 600 V and a rated temperature of 105°C. The cable length between the power plug and CP and between SW and CN should be 2 m. A 3-core cable with sheath should be used between the power plug and CP.
Page 137 Part Replacement 2.5.1 Replacement of the flexible cover This section describes procedures to replace a damaged flexible cover. <Work procedure> (1) Separate the flexible cover from the frame and push down the flexible cover. Remove hook A (M4, 9 plates). Thus, the flexible cover is separated from the frame.
Page 138 (2) Remove the couch top, the handle, the rear cover, the front cover, the side covers <R> and <L>, the frame under cover, the maintenance cover, and the rail cover. No. 2D201-176EN*D...
Page 139 (3) Disconnect the cables attached to the upper frame. No. 2D201-176EN*D...
Page 140 (4) Remove the upper frame. (This work requires two people.) After removing the LM guide rail (42 M8 bolts), remove the 30 M8 bolts to separate the upper frame from the vertical movement mechanical unit. After removing the upper frame, place it on proper protective materials such as square timber (taking care not to damage the cables or electric parts) in order to prevent the PWBs and the horizontal drive unit on the upper frame from being subject to excessive force.
Page 141 (5) Remove the flexible cover from the vertical drive unit as shown below. (6) Reverse the above steps to remount the flexible cover. As described in subsection 2.6.6, extreme care must be exercised to avoid interference with electromagnetic valve L24 during routing of the internal cable. No.
Page 142 2.5.2 Replacing the longitudinal movement drive unit This section describes the procedures for replacing the longitudinal movement drive unit if a malfunction occurs. (The replacement procedures for the encoder, drive unit, and servo amplifier are described in this section.) <Work procedure> (1) Remove the rear cover and the side cover <R>.
Page 143 (3) Loosen the two M8 bolts on the sides and the one M8 bolt at the rear to remove the belt-tension adjustment pulley. To allow the belt tension to be returned to its original value, it is recommended that a mark be placed at the original mounting location.
Page 144 (5) Remove the two M4 screws of the encoder mounting plate and the one M4 screw securing the center of the encoder in order to remove the encoder together with the encoder mounting plate. In addition, disconnect the cables connected to the drive section.
Page 145 (7) Remove the encoder, idlers, and brake release lever handle from the longitudinal movement drive unit. The longitudinal movement drive unit must be replaced as a whole unit. At this time, use the M4 screw 8 mm in length to secure the center of the encoder.
Page 146 (8) Replacing the servo amplifier (a) Remove the rear cover and the couch-top bottom cover (small). When removing the couch-top bottom cover (small), refer to step (2). (b) Disconnect the cables from the servo amplifier and remove the two mounting screws to remove the servo amplifier unit.
Page 147 (c) Remove the cover from the mounting plate and then separate the servo amplifier from the plate. Mounting plate Servo amplifier Cover M4 screw No. 2D201-176EN*D...
Page 148 2.5.3 Replacing the hydraulic unit The procedures for replacing the hydraulic unit if it malfunctions are described below. Since this work involves the handling of heavy objects, carefully review the replacement procedures in advance. 2.5.3.1 Preparation Time required: 2 hours (Two workers are required because the hydraulic unit is heavy and the hose must not be allowed to bend.) Materials and tools required ...
Page 149 2.5.3.2 Removing the hydraulic unit (1) Raise the patient couch to the UP-LIMIT position. (2) Release the lower edge of the bellows and remove the base cover. (3) Raise the lower edge of the bellows and tie it to the upper frame with straps. (4) Place the support bars at the specified locations and lower the patient couch until it is supported by the support bars.
Page 150 (7) Remove the screw securing the motor pump/oil tank mounting bracket (M4  4). (8) Remove the screws securing the lower shaft of the cylinder and the bolts at the top of the cylinder. (9) Remove the cylinder while holding it (to prevent the cylinder from falling). (10) One worker should hold the cylinder and another worker should hold the tank and pump in order to remove the hydraulic unit from the patient couch.
Page 151 2.5.3.3 Mounting the hydraulic unit CAUTION: Be extremely careful when handing the hydraulic hose. The hydraulic hose is very fragile (minimum permissible bending radius: 45 mm). If the hose is bent, it will be permanently damaged and can no longer be used. (1) Remove the lower-side shaft from the cylinder that was removed and install a new cylinder.
Page 152 (6) Extend the ram while adjusting the block angle so that the upper edge of the ram is parallel to the ring. (7) With the ram set in the ring in the block section (in the status in which the bolt can be inserted into the ring section and the ram section), insert the bolt (M6 ...
Page 153 Adjustments and Cleaning 2.6.1 Adjustment of vertical motion speed The speed of lowering the couch can be controlled by the solenoid throttle valves L21 and L24. In this case, their openings must be identical. First, loosen the locking nut of L21, fully close each valve, mark the fully closed position on each valve, then open the valves at the same rate.
Page 154 2.6.2 Changing the vertical stop positions This work must be performed according to instructions from the factory. This section describes procedures to change the vertical stop positions of the patient couch (for safety). Vertical stop positions are determined by the positions of the photosensors.
Page 155 (2) The photosensors are arranged as shown below. Select the sensor corresponding to the vertical stop position you want to change (Height-0, position at which the couch top downward movement is inhibited to prevent interference with the tilted gantry; Height-1, position at which downward movement is inhibited because the couch top is inserted in the gantry;...
Page 156 2.6.4 Adjusting the couch-top support roller When the couch top is replaced, it is necessary to readjust the roller. Adjust the roller by following the procedures below. (1) Removing the front cover Move the couch top to the OUT-LIMIT position. Loosen five M4 screws to remove the front covers 1 and 2.
Page 157 (2) Retracting the side rollers Insert a hex key into the tool insertion hole to loosen the M10 bolts securing the side rollers A and B. Then loosen the M8 nuts for the adjustment bolt and rotate the M8 bolts in the direction indicated by the arrow to lower the rollers. Side roller A Side roller B Side roller A...
Page 158 (3) Placing weights on the couch top Place weights (approximately 60 kg) in the range from the end of the couch top to 750 mm from the end of the couch top (the phantom holder can be used instead of weights).
Page 159 (5) Adjusting the couch-top angle Loosen the M8 securing nuts for the center roller and raise or lower the center roller by rotating the M8 adjustment bolts so that the length of protrusion of the M8 adjustment bolt is 6  0.5 mm (the surface of the nut and the surface of the bolt may be in the same plane).
Page 160 (6) Adjusting the side rollers Raise one of the side rollers (two locations) that was retracted in step (2) by rotating the adjustment bolts so that it is in contact with the lower surface of the couch top. At this time, adjust the side roller using a torque wrench with a tightening torque of 20 kgf ...
Page 161 (7) Adjusting the rear roller Raise the rear roller that was retracted in step (4) by rotating the left and right M8 adjustment bolts evenly so that it is in contact with the lower surface of the couch top. Since it is difficult to check the contact status, adjust the length (A shown in the figure below) of the left and right adjustment bolts to the same length so that the rear roller is level.
Page 162 2.6.5 Adjustment of belt tension The tension of the belt should be maintained in the specified range as accurately as possible to ensure precise stoppage of horizontal motion. <Work procedure> Remove the side bumper L, the side cover L, and the rear cover from the upper frame. Push the belt at the notch in the rail cover.
Page 163 (2) Loosen the two M8 bolts that mount the tension adjustment pulley and turn the belt-tension adjusting bolt to adjust the tension. Belt-tension adjustment pulley mounting bolt 2-M8 Belt-tension adjustment bolt (3) Measure the tension of the belt again. If the belt tension is not in the specified range, repeat the above steps until the proper belt tension is obtained.
Page 164 2.6.6 Resetting the overcurrent relay When an overcurrent flows, the overcurrent relay prevents the motor from smoking and burning. When the overcurrent relay functions, reset it as described below. Before resetting the overcurrent relay, it is necessary to check whether the circuit is shorted or the drive unit is locked (a foreign substance is caught etc.).
Page 165 (2) Overcurrent relay for the vertical movement motor <Work procedure> (a) Move the switch of the overcurrent relay to the ON side from the check window of the lower cover and reset the relay. Reset (b) After resetting the relay, check the UP movement operation. If the overcurrent relay is not triggered again, the work is complete.
Page 166 2.6.7 Maintenance and inspection of the clutch/brake assembly 2.6.7.1 Maintenance procedure (1) This clutch/brake assembly is a dry type. Therefore, never allow oil etc. to contaminate the friction surface. (2) The friction surface of the clutch is gradually abraded as it is used and the clearance between the armature assembly and the rotor assembly is increased.
Page 167 (3) If the clutch/brake does not operate normally  Is the energizing voltage low? (It must be 22 to 26 VDC.) Are there any abnormalities in the power, circuit, switches, etc.?  Is the clearance increased due to abrasion of the friction surface? (The clearance must be 0.5 mm or less.) ...
Page 168 No. 2D201-176EN*D...
Page 169 CHAPTER 3 GANTRY/COUCH CONTROL SECTION Before using this unit, please read the "Precautions". No. 2D201-176EN*D...
Page 170 Scope This chapter describes the principles and repair procedures of the gantry and patient couch control units of the Alexion multislice CT scan system (TSX-033A). General Outline The gantry and couch control is composed of several PWBs (KGTSM (GMSC) PWB, OPCONTM PWB, etc.) and related units.
Page 171 3.3.2 Block diagram of the system No. 2D201-176EN*D...
Page 172 3.3.3 Control target, function, outline (1) Functions of the gantry stationary section Function name Outline Gantry rotation 0.75 s, 1 s, 1.5 s/rotation (continuous rotation) Slow rotation (60 s/rotation) stops at any angle. Gantry tilting +30° to -30°, remote operation Data acquisition Control signals [VIEWTRIG, BGN, X-ray ON/OFF] Data [Gantry position, rotation speed, gantry tilt angle,...
Page 173 3.3.4 Composition and explanation of each unit The gantry/couch control section is mainly composed of eight different types of PWBs, consisting of actuators, detection elements, power elements, relay elements, as well as cables, etc. (1) KGTSM PWB (2) GMSC PWB (3) KGTSP PWB (4) Servo amplifier unit (5) GCIFM PWB...
Page 174 3.3.4.3 KGTSP PWB (Kind Gantry Table Sequencer Power PWB) <Functions> (1) This unit converts control signals (TTL level) output from the KGTSM (GMSC) PWB to power signals for each actuator and outputs the power signals to the actuators. (2) This unit controls ON/OFF operation of the X-ON lamp located at the front and rear of the gantry, the slice counter, and the wall-mounted lamp located at the entrance of the scanner room.
Page 175 3.3.4.7 Auxiliary operating panels These panels are located at the right and left of the front gantry cover and are used to operate the gantry and the couch. 3.3.4.8 SI PWB This PWB is located under the rear base cover of the couch. <Function>...
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Page 177 3.3.5 Control flow Control of the gantry and the couch is started when the KGTSM (GMSC) PWB receives operation requests from the console, the operating panel, or the maintenance panel. The control flows of the drive units The control flows of data acquisition The KGTSM (GMSC) PWB has a safety detection function.
Page 178 Data acquisition control flow No. 2D201-176EN*D...
Page 179 3.3.6 Interlock The gantry/couch control section has the following interlock functions. (1) Gantry/couch movement interlock [to ensure the safety of the patient and to protect the system from damage] The following operations are immediately stopped and disabled depending on the relationships between gantry tilting, couch vertical movement, and couch-top horizontal movement or when a pressure-sensitive switch is activated.
Page 180 (a) Locations of interlocks No. 2D201-176EN*D...
Page 181 (*1): When the couch-top stroke is shortened, the interlock positions and sensor positions are as shown in the table below. Couch-top scan stroke Interlock and sensor positions 1400 mm 1604 mm 1200 mm 1404 mm 1000 mm 1204 mm Interlock positions and sensor positions (CBTB-029B)
Page 182 (b) Drive operation interlocks Operation interlocks  : Impossible movement  : Movement with restrictions  : Possible movement Interlock + tilting - tilting IN movement OUT movement UP movement DOWN movement Free movement Front tape SW    ...
Page 183 (c) Interlocks related to X-ray exposure Interlock in which X-ray generation is interrupted or not performed [1] If couch-top horizontal movement is stopped by an interlock after the START button ( ) is pressed on the keyboard (a) If X-rays are being generated, X-ray exposure is stopped immediately (during scanoscopy or helical scan).
Page 184 (5) Control priority interlock [to ensure the safety of the patient, the operator, and service engineers] The priority of control instructions is as follows: [First priority] Maintenance panel on the KGTSM (GMSC) PWB [Second priority] Gantry operating panel [Third priority] Operation from the console (a) During movement using the maintenance panel ...
Page 185 3.3.7 List of fuses used for the gantry Gantry stationary section fuses Fuse Mounting Rating Type Line used Model location F325 5 A 250 V Time lag Rotation servo control line Figure <1> ASF041*5A F326 1 A 250 V Time lag Rotation brake ASF041*1A F327 1 A 250 V Time lag Rotation brake...
Page 186 OPCONTM PWB fuses Fuse Mounting Rating Type Line used Model location 3 A 250 V Time lag Slit ASF041*3A Figure <7> 3 A 250 V Time lag Spare ASF041*3A 2 A 250 V Time lag Internal positioning ASF041*2A projector 8 A 125V Normal OPCONTM PWB 5 V ASF701*8A...
Page 187 GMSC PWB fuses Fuse Mounting Rating Type Line used Model location 7 A 125 V Normal GMSC PWB 5 V Figure <12> AXW701*007 3 A 125 V Normal GMSC PWB 5 V AXW701*003 3 A 125 V Normal GMSC PWB 5 V AXW701*003 0.5 A 125 V Normal GMSC PWB 5 V...
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Page 189 3.3.8 Gantry power-supply sequence The gantry power-supply sequence is as follows: (1) When the internal power-supply ON LED is lit, this indicates that power is supplied to some parts of the gantry.  While this LED is lit, the power-supply ON of the console will function. (2) When the power switch of the console is turned ON ...
Page 190 No. 2D201-176EN*D...
Page 191 No. 2D201-176EN*D...
Page 192 3.3.9 Setting the DAS timer Set the DAS timer (TIMER 111) located in the GTPC unit as required. To stabilize the temperature of the inside of the data acquisition section, especially that of the detector, it is necessary to supply power to the heater for more than 2.5 hours. By setting the DAS timer, power is automatically supplied to the data acquisition section before the system is turned ON, which makes it possible to use the system immediately after turning ON the power switch of the console.
Page 193 (2) Setting procedure (a) When power to the gantry is supplied all day and night The manual switch is turned "ON". (b) When supplying power to the data acquisition section is controlled using the setting indicator a. Use the DAS timer line frequency change window on the rear of the GTPC unit to set the frequency change switch (white) on the rear of the DAS timer to the line frequency of the site (set the arrow indicator to 50 Hz or 60 Hz).
Page 194 (3) Note (a) When the DAS timer is set, power is supplied to the gantry rotation section even if the power switch of the console is turned OFF. (b) When the DAS timer is used, always turn ON the switch on the switchboard to which the system (or the gantry when the power-supply system of the gantry is different from that of the console) is connected.
Page 195 3.3.10 Installation locations of the DC power supplies Installation locations of the DC power supplies No. 2D201-176EN*D...
Page 196 Outline of the PWBs 3.4.1 Settings of KGTSM switches Switches Settings during normal use Description DSW1 2 and 3 are set to ON. Settings of the CN404, CN402 (for service use and for the SS simulator) port DSW4 1 is set to ON. System setting DSW5 2 is set to ON.
Page 197 3.4.2 KGTSM, connectors, and LEDs LED 33 BRK OFF LED 36 SERVO ON LED 9 TILT-ON LED 10 TILT+ON LED 11 TILT ON LED 12 T-BRK OFF LED 64 VTRIG LED 13 TILTSTOP LED 65 XRAY-ON LED 14 TENPLS LED 62 PSEL B LED 15 HI-MASTER LED 63 BGN LED 16 DOWN1...
Page 198 List of KGTSM LEDs (1/4) Name Meaning/operation In idle status Remarks RESET GTS PWB reset signal: o OFF The LED should not When resetting is performed, the LED lights. remain lit. HALT Communication CPU (Z80) halting: o OFF The LED should not When the CPU is halted, the LED lights.
Page 199 List of KGTSM LEDs (2/4) Name Meaning/operation In idle status Remarks Output of upward movement signal: o OFF When the LED is lit, the operation signal is being output. 200 VAC ON 200 V power line (HARD-ERR, power supply to the motor is interrupted using SW4): * ON When an error occurs, When 200 V power line is connected, the LED lights.
Page 200 List of KGTSM LEDs (3/4) Name Meaning/operation In idle status Remarks POSI-PLS Input of rotation position sensor: o OFF When the LED is lit, the sensor is being interrupted. GVSEL A Gantry VTRIG generation mode selection * ON LED41: OFF, LED42: OFF = Pulses for 0.75-second rotation have been selected.
Page 201 List of KGTSM LEDs (4/4) Name Meaning/operation In idle status Remarks Output of BGN (acquisition start) signal: o OFF When the BGN signal is output, the LED lights. VTRIG Output of VTRIG (VIEW-TRIG): * Blinking When the LED is blinking, pulses are being output. XRAY ON Output of X-RAY ON signal to XC: * ON...
Page 202 3.4.3 VRs and test pins (TP) of the KGTSM PWB TP40 TP41 TP60 TP50 TP51 TP52 TP43 TP46 VR No. Name Meaning (contents) ROTA SPEED For rotation speed adjustment (*1) PROJ/OFFSET For offset adjustment of the projector angle display (*1) PROJ/GAIN For gain adjustment of the projector angle display HEIG/OFFSET...
Page 203 TP No. Name Meaning (contents) Power supply 0 V (DC power supply) Power supply 0 V (DC power supply) Power supply 0 V (DC power supply) Power supply 0 V (DC power supply) Power supply 0 V (DC power supply) +5 V Power supply +5 V (DC power supply) +15 V...
Page 204 3.4.4 Settings of GMSC switches Switches Settings during normal use Description DSW1 Refer to subsection 3.10.3.1. Setting of FPGA system DSW2 1, 3 are set to ON Mode setting DSW4 All OFF Maintenance setting DSW10 All OFF For gantry rotation maintenance DSW11 Refer to subsection 3.10.3.2.
Page 205 3.4.5 GMSC connectors (1) Locations of connectors on the GMSC PWB No. 2D201-176EN*D...
Page 206 (2) GMSC PWB connector list Number Connector No. TS part number Connection destination of pins CN401 APS270*100SS3 GCIF CN402 APS463-02 PC for service (for product development) CN404 APS352-25 PC for service (DSUB) CN404A APB683-02 PC for service (USB) CN406 APS270*20SS Right operating panel CN407 APS270*20SS...
Page 207 3.4.6 GMSC LEDs (1) Locations of LEDs on the GMSC PWB No. 2D201-176EN*D...
Page 208 (2) GMSC PWB LED list Color Name Meaning LEDs 1 to 8 Green The function is operating (various functions). LED20 Green AC200V_ON 200 VAC is supplied to the drive system. LED21 Green FPGA_DONE FPGA DONE signal status (configuration completed) LED32 Green CPU_HTBT The CPU is operating normally.
Page 209 3.4.7 GMSC check terminals (TP) (1) Locations of test pins on the GMSC PWB No. 2D201-176EN*D...
Page 210 (2) GMSC PWB test pin list Name Meaning (contents) Power supply 0 V Power supply 0 V Power supply 0 V Power supply 0 V Power supply 0 V TP63 Power supply 0 V TP64 Power supply 0 V TP65 Power supply 0 V TP66 Power supply 0 V analog check...
Page 211 (3) LED display contents selection function For LED1 to LED16, it is possible to select the lighting conditions (displayed contents) from among 16 types using the push switch (SW33). Each time SW33 is pressed, the contents displayed on LED1 to LED16 are changed. The contents currently selected for display are displayed on LED34 (SEL3) to LED37 (SEL0) in hexadecimal notation.
Page 212 (b) Select 1: Tilt related status display LED34 LED37 LED No. Signal name LED status Description LED1 OPTILT The tilting operation signal (duplicated signal) is input. LED2 TILT_MOVE_EN The tilt drive signal output gate is open. LED3 TILT_COM The tilt drive signal is active. LED4 TILT_BRK The tilt brake OFF signal is active.
Page 213 (c) Select 2: Horizontal movement-related status display LED34 LED37 LED No. Signal name LED status Description LED1 OPSLIDE The sliding operation signal (duplicated signal) is input. LED2 SLIDE_EN The sliding PCL output gate is open. LED3 SL_PULSE Blinking The sliding PLC pulse is being output. LED4 SL_BRK Both the sliding brake OFF signal and...
Page 214 (d) Select 5: Rotation/Scanning-related status display LED34 LED37 LED No. Signal name LED status Description LED1 (Reserve) LED2 PSELA View trigger selection mode LED3 PSELB View trigger selection mode LED4 R_MOTOR_ON The servo main power is ON. LED5 R_SERVO_ON The servo is ON. LED6 R_SERVO_RDY The servo is ready.
Page 215 (e) Select 6: Operating system-related status display LED34 LED37 LED No. Signal name LED status Description LED1 OPLOCAL The operation signal from the operating panel is input. LED2 FSWRU The operation signal of the right UP footswitch is input. LED3 FSWRD The operation signal of the right DOWN footswitch is input.
Page 216 Select 7: System setting-related status display LED34 LED37 LED No. Signal name LED status Description LED1 SYS_SEL_COMP The hardware system setting is normal. LED2 (Reserve) LED3 LED4 LED5 LED6 LED7 LED8 LED9 DSW1_NG The DIP switch setting is abnormal. LED10 (Reserve) LED11 LED12...
Page 217 (g) Select 8: System setting-related status display LED34 LED37 LED No. Signal name LED status Description LED1 TILT0 The tilt angle is 0°. LED2 TILT_PSEN The tilt angle is positive. LED3 TILT_MSEN The tilt angle is negative. LED4 (Reserve) LED5 (Reserve) LED6 (Reserve)
Page 218 (h) Select 9: Sensor setting-related status display LED34 LED37 LED No. Signal name LED status Description LED1 IN_LIMIT The IN_LIMIT sensor is ON. LED2 IN_1 The IN_1 sensor is ON. LED3 OUT_2 The OUT_2 sensor is ON. LED4 OUT_1 The OUT_1 sensor is ON. LED5 OUT_LIMIT The OUT_LIMIT sensor is ON.
Page 219 Select 10: Couch vertical movement status display LED34 LED37 LED No. Signal name LED status Description LED1 OPHEIGHT The couch vertical movement operation signal (double-redundant signal) is input. LED2 HEIGHT_ON The couch vertical movement operation signal output is open. LED3 HEIGHT_COM The couch vertical movement operation signal output is active.
Page 220 3.4.8 Setting short pins and adjusting variable resistors on the KGTSP (1) Setting JP1 By setting JP1 short pins, the lighting status of the wall-mounted lamp and the X-ON lamp can be changed. Pins 5 and 6 are shorted when the equipment is shipped from the factory.
Page 221 (2) Adjusting variable resistors Function Adjusts amplification of the front microphone signal. Adjusts amplification of the central microphone signal.  VR1 and VR2 are set to an intermediate value at the time of shipment. Normally, they do not need to be adjusted. CN511 CN514 CN503...
Page 222 Use of the GTS Maintenance Panel 3.5.1 Important notices (1) When the panel switch SW1 is set to ON, the GTS maintenance panel cannot be operated from the operator panels or from the console. (2) When the panel switch SW1 is turned ON while the gantry or couch is in motion, the gantry or couch stops.
Page 223 Switches used for maintenance panel operations SW1 (PANEL ON) When this switch is set ON, the maintenance panel can be used. LED67 LED66 SW32 (FUNCTION SET) Used to select an object PANEL ON (e.g., slit) to move. SW31 (MODE SET) Used to select the mode of the function set using SW32.
Page 224 List of maintenance panel functions (for KGTSM) Settings of the functions Mode settings: Settings for SW31 Operational SW32 functions DAS TEST GAIN1 GAIN2 GAIN3 GAIN4 GAIN5 GAIN6 GAIN7 GAIN0 SLIT (FOCUS) 4 mm 3 mm 2 mm 1 mm 1 mm SHIELD SENSOR ...
Page 225 Maintenance panel operations Operation when the Setting Start Operation (when the related switch is Function PANEL switch is on SW32 switch turned ON or OFF) turned OFF DAS test Starts when the SET switch is pressed. Stops in the current status.
Page 226 3.5.3 Procedures to use the GMSC maintenance panel <Work procedure> (1) Set the lever of the panel switch SW1 on the GMSC to the PANEL ON position (downward).  The maintenance panel can be used. (2) Set switch SW32 to select an object (function) to move. ...
Page 227 3.5.3.1 Termination method (1) Set the lever of the panel switch SW1 on the GTSA to the PANEL OFF position (upward). (2) Press the RESET switch (SW21) or turn the NFB1 of the gantry breaker OFF.  The display of the 7-segment LEDs (LED66 and LED67) turns from 88. <Switches used for maintenance panel operations>...
Page 228 Functions of the maintenance panel Operation mode Function Contents of mode function (SP) DAS MODE GAIN1 GAIN2 GAIN3 GAIN4 GAIN5 GAIN6 GAIN7 GAIN0 SLIT (mm  row) 4  4 3  4 2  4 1  4 1  2 SHIELD SENSOR (focus size) DETECTOR...
Page 229 Maintenance panel operations Setting Operation when the Start Operation (when the related switch is turned Function PANEL switch is switch ON or OFF) SW32 turned OFF Starts when the SET switch is pressed. Stops in the current mode status. Slit The slit moves until it reaches the end once Keeps on moving till the SET switch is pressed.
Page 230 Setting Operation when the Start Operation (when the related switch is turned Function PANEL switch is switch ON or OFF) SW32 turned OFF Scano SET & The scano moves until it reaches the end once Keeps on moving till SCAN these switches are pressed.
Page 231 3.5.4 Procedures for use of KGTSM maintenance mode 3.5.4.1 Outline The PC connected to the KGTSM can be used for operation of functions in almost the same manner as the maintenance panel. <Tools required> 1) PC 2) Service cable (GR-1, as standard) 3) HyperTerminal or equivalent.
Page 232 3.5.4.2 Using maintenance mode (1) After the following message, enter the function No. for which maintenance/checks are to be performed. (Refer to the above table "List of maintenance panel functions" for details of the Nos. to be input.) Select SW32 No.:  [Enter] (2) Input the mode Nos.
Page 233 3.5.5 Procedures for use of GMSC maintenance mode 3.5.5.1 Outline The PC connected to the GMS can be used for operation of functions in almost the same manner as the maintenance panel. <Tools required>  PC  Service cable (GR-1, as standard) ...
Page 234 3.5.5.3 Limitations (1) Control of the following functions is impossible in maintenance mode.  Tilt (5)  Patient-couch slide (A)  Patient couch vertical movement (B) (2) To stop gantry rotation, press the [Enter] key. (3) Entering "q" closes the menu. (4) After the menu is closed, return the panel switch (SW1) on the GMSC to the upper position (PANEL OFF) and reset the GMSC.
Page 235 Obtaining GTS Status Information 3.6.1 KGTSM messages The KGTSM PWB sends a status message to the PC when an error occurs, when scanning is executed, or when the gantry rotation speed is checked. The following is a list of such messages and their meaning. <Tools required>...
Page 236 MAIN: Dip-SW setup error (DSW11) Error in DIP-SW11 setting. MAIN: hard timer check error A hardware timer error is detected in the startup check. MAIN: D.P.R. check error The KGTSM hardware is abnormal. MAIN: Fluoroscopy safety check error Abnormal CT fluoroscopy safety circuit ROTE: gate array error (init): Oxff The hardware for gantry rotation control...
Page 237 DAS: scan L1 time-out COUNTER Data acquisition does not start. XXXX COM-PRE XXXX DAS: scan L2 time-out COUNTER Data acquisition time-out XXXX COM-PRE XXXX DAS: Gate Array init status Fail XX Data acquisition hardware abnormal DAS: scano L1 order error Scano acquisition interrupt abnormal DAS: scano L2 order error...
Page 238 SLIDE: 100 ms interval error Watchdog error of the operation panel SLIDE: time-out Time-out during couch movement SLIDE: CP2 interrupt Couch overrun of 10 mm or more. SLIDE: hardware failure The couch moved to the opposite (direction error) direction. (10 mm or more) SLIDE: Can't move.
Page 239 TILT: 100 ms interval error Watchdog error of operating panel TILT: time-out Time-out during gantry tilting TILT: Encoder time-out Gantry tilt encoder does not function. TILT: Limit interrupt Detection of gantry tilt limits TILT: hardware failure Gantry tilting in reverse direction. (direction error) (2°...
Page 240 GND: Internal light error No response to request for internal light projection GNS: Polling error No response to status request to OPCONTM GNS: communication error Error in communication with OPCONTM. GNS-CHILD: command time out = No response from OPCONTM XXXXXXXX GNS: retry over times The specified number of retry times...
Page 241 3.6.1.3 Terminal log Up to 512 of the most recent messages (messages shown in the preceding subsection) are stored in the memory within the KGTSM. The messages can be checked later using the method outlined below: <Work procedure> (1) Connect CN404 of the KGTSM to the COM port of the PC using the service cable. (2) Start the TERM program on the PC.
Page 242 3.6.2 Detailed KGTSM status codes (Including error codes and interlock information) 3.6.2.1 Details This subsection describes how detailed status information for the KGTSM can be obtained. The following information can be seen: (1) Cyclic status data (b1)(b2) Running status of the KGTSM DAS offset status Operating status of the gantry X-ray ON status...
Page 243 (2) List of return status (more detailed information) (a) to (i) Functional status of the inside of the rotation section of the gantry (j) to (m) Functional status of the stationary section of the gantry (n1) to (n4) : Angular position information of the external light projector (o1) to (o19) : Details of errors (p1) to (p16) :...
Page 244 3.6.2.2 Explanation of errors (1) Error status data marked with a star (Return status data o1 to o19) For errors marked with (  ) in the error details list (o1 to o19 of the return status), the corresponding functions cannot be executed after the error has occurred even if attempts are made to retry execution.
Page 245 [GTS] *** dualport RAM cyclic status ***(cyclic status) done_sts=5252(RR) off_sts=52(R) rote_sts=52(R) x_ray_sts=52(R) bed_sts=52(R)       (b1)(b2) gns_sts=52(R) err sts=3032383a30303030(00000000) slid_inter=33(0)    (h1) to (h8) hite_inter=33(0) tilt_inter=32(0) r_spd=303030(000) x_ray_pos=30303030(0000)     (l1) to (l3) (m1) to (m4) sld_dsp=2b3030303030(+00000) hite_dsp=2b353131(+000) tilt_dsp=2d333230(+000) ...
Page 246 mes_main=40(@) mes_das=40(@) mes_hite=40(@) mes_power=40(@) mes_mudat=40(@)      (o10) (o11) (o12) (o13) (o15) mes_gns_count=40(@) mes_compre=40(@) mes_det=40(@) mes_slide2=40(@)     (o16) (o17) (o18) (o19) dd_err=30303030303030303030303030303030(0000000000000000)  (p1) to (p16) mudat_err=40404040(@@@@)  (q1) to (q4) scan_type=30(0) view_rate=30303030(0000) x_ray_pos=313230(120) ...
Page 247 (3) Cyclic status (b1) (b2) running status The table shows the KGTSM status for various commands: (b1) (b2) Content Ready PAS Busy PAS DONE [ID (X)] SCAN Busy SCAN Table moving SCAN DONE UNIT Busy UNIT DONE [ID (X)] ABORT Busy ABORT DONE BREAK Busy BREAK DONE...
Page 248 Couch status This data indicates the status of the couch: R: The couch is ready to move. (Ready) B: The couch is in motion. (Busy) (g) OPCONTM status This data indicates the control status (OPCONTM) inside the gantry: R: Ready for operation. (Ready) B: Operation in progress.
Page 249 Vertical movement interlocks of the couch This data indicates interlock information of the vertical movements of the couch. UP direction DOWN direction Movement possible Movement possible Movement disabled Movement possible Movement possible Movement disabled Movement disabled Movement disabled (k) Gantry tilting interlocks This data indicates interlock information of the gantry tilt.
Page 250 (m1) to (m4) Tube position The position of the tube in the gantry is indicated. The gantry position pulse is expressed as a hexadecimal number after the position detection sensor is turned OFF. (m1) (m2) (m3) (m4) Position pulse 1000's digit 100's digit 10's digit 1's digit...
Page 251 (q) MUDAT status Indicates the MUDAT status. 8 bits from D7 to D0 are allocated as follows: * For the above bits, 1 corresponds to the effective status. D7: 0 fixed D6: 1 fixed D5: For future expansion D4: For future expansion D3: For future expansion D2: For future expansion D1: For future expansion...
Page 252 (v1) to (v8) Sensor status The status of each sensor on the KGTSM is indicated. D7 D6 D5 D4 (v1) 0 1 Tape switch at the Tape switch at the Mat switch at the Mat switch at the upper lower part of the lower part of the upper part of the part of the front of the...
Page 253 (c1) to (c3): Scan slice thickness (slit) Indicates the status of the scan slice thickness (slit) position. (c1) (c2) (c3) Scan slice thickness (slit) Position not identified 4 mm 3 mm 2 mm 1 mm Reference position sensor SHIELD (d1)(d2): Number of rows Indicates the status of the number of rows.
Page 254 (g1) to (g3): Beam trimmer (unused) Indicates the beam trimmer status. (g1) (g2) (g3) Beam trimmer Position not identified 10 mm 7 mm 5 mm 3 mm 2 mm 1 mm 0.8 mm Reference position sensor (h1) to (h3): Detector switching Indicates the detector switching status.
Page 255 (m) Tilt status of the external light projector The following shows the operating status of each of the above: Settings Horizontal Vertical Gantry tilting External light movement of movement of projector couch top couch 0 (0  30) At halt At halt At halt At halt...
Page 256 (o3) DAS mode error details : 0 fixed : 1 fixed D5 to D2 : Not in use : Input parameter error : Operating time-out (o4) Wedge error details D7: 0 fixed D6: 1 fixed D5: Not in use D4: Not in use D3: Pulse motor abnormal D2: Software error D1: Input parameter error...
Page 257 (o7) Gantry tilting error details D7: 0 fixed D6: 1 fixed D5: Reverse movement (2  or more)/indicator angle data abnormal  D4: Limit error D3: Watchdog error  D2: Tilt movement time-out/encoder time-out  D1: Data error (specified tilt angle error) D0: Interlocks interrupted (o8) Light projector : 0 fixed...
Page 258 (o11) DAS error details D7: 0 fixed D6: 1 fixed D5: X-ray system error (X-RAY ON status continues even after X-ray generation is terminated.) D4: Gantry rotation system error D3: Initialization error (DAS CCP) D2: Time-out D1: DAS CCP interrupt abnormal D0: Software error or interruption of operation due to interlock activation (o12) Couch vertical movement error details D7: 0 fixed...
Page 259 (o17) COM-PRE error details (unused) D7: 0 fixed D6: 1 fixed D5: 0 fixed D4: 0 fixed D3: 0 fixed D2: 0 fixed D1: 0 fixed * D0: 0 fixed * This will be generated when a metallic object is present or when X-ray generation is stopped during scanning.
Page 260 (p1) to (p16): Details of DD motor errors (not used) (q1) to (q4): Abnormal MUDAT channels (q1) Not defined Not defined Not defined Not defined Not defined Not defined (q2) Not defined Not defined Not defined Not defined Not defined Not defined (q3) Not defined Not defined Not defined Not defined Not defined Not defined (q4)
Page 261 Relationship between tilt encoder value and actual angle (1/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 262 Relationship between tilt encoder value and actual angle (2/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 263 Relationship between tilt encoder value and actual angle (3/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 264 Relationship between tilt encoder value and actual angle (4/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 265 Relationship between tilt encoder value and actual angle (5/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 266 Relationship between tilt encoder value and actual angle (6/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 267 Relationship between tilt encoder value and actual angle (7/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 268 Relationship between tilt encoder value and actual angle (8/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 269 Relationship between tilt encoder value and actual angle (9/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 270 3.6.3 KGTSM timer checks (Including timer errors) The KGTSM PWB has five 15-channel function-control timers. The KGTSM checks the operations of these timers in the initial sequence when the KGTSM power is turned ON and outputs the result (message) to the PC. <Tools required>...
Page 271 3.6.4 GMSC messages 3.6.4.1 GMSC status The GMSC PWB sends a status message to the PC when an error occurs, when scanning is executed, or when the gantry rotation speed is checked. The following is a list of such messages and their meaning. <Tools required>...
Page 272 3.6.4.3 Typical error messages Message Meaning CMN_ChkHelicalSpeed() Illegal Helical Helical scan couch speed parameter error speed. CMN_ChkAcqView() Illegal acquisition Acquisition view count parameter error view count. CMN_ChkAcqView() acquisition time Acquisition time over over. DAS_Init() DAS Comparator initialization DAS comparator initialization error error DAS_Init() CTF safe switch error CT fluoroscopy safety circuit error...
Page 273 Message Meaning Rotation Speed Error Gantry rotation speed error Stop Position Error (over 1deg) Gantry stop position error Servo not ready (Initial) The servo is not ready. Protocol Error : NAK Receive or timeout The gantry does not respond. DD motor status error DD motor status error rotate in stop state.
Page 274 Message Meaning DAS_GetViewRate() Rotation speed not Incorrect gantry rotation speed found DAS_SlideStart() Illegal Helical speed Abnormal helical couch speed DAS_SlideStart() Illegal scan type Abnormal scan type MUDAT ROTSOT fail ROTSOT error MUDAT SOTROT fail SOTROT error MUDAT CH CHG ERR Channel change error MUDAT DAS CLK ERR DAS clock error...
Page 275 3.6.4.4 Terminal log Up to 32,256 of the most recent messages (messages shown in the preceding subsection) are stored in the memory within the GMSC. (The contents of the log are not cleared even when the power switch is turned OFF.) The messages can be checked later using the method outlined below: <Work procedure>...
Page 276 (5) After a message is displayed, the following commands can be used: [f] forward, [b] backward or q ? f : Next screen (messages newer than the currently displayed group of messages) b : Preceding screen (messages older than the currently displayed group of messages) q : End terminal log NOTE:...
Page 277 MUDAT status Idle status and projector ON/OFF status Status of the OUT-2 sensor Request status condition Detailed status of COM-PRE (unused) (v1) to (v8) : Sensor status (2) List of return status (more detailed information) (a) to (i) Functional status of the inside of the rotation section of the gantry (j) to (m) Functional status of the stationary section of the gantry (n1) to (n4) :...
Page 278 <Tools required>  PC  Service cables (GR-1, as standard)  Programs: HyperTerminal etc. <Procedure to collect status data> (1) Connect CN404A of the GMSC to the COM port of the PC using the service cable. (2) Start HyperTerminal on the PC. (3) Enter as follows on the PC.
Page 279 (3) Cyclic status --- C Status --- GTS=[R], Exec=[RR], Offset=[R], Gantry=[R], X-Ray=[R], Table=[R], Optics=[R], (b1) (b2) Error[30 30 30 30 30 30 30 30], Slide InterLock=[3], Height InterLock=[0], (h1) to (h8) G-Tilt InterLock=[0], Rotation=[000], X-Source Position=[0008], (l1) to (l3) (m1) to (m4) X-Source Position(deg)=[120], Slide Position=[+00000], Height Position=[-089], (n1) to (n6) (o1) to (o4)
Page 280 (c) DAS offset status The following are the offset status of the DAS: R: Offset data can be acquired. (Ready) B: Offset data acquisition in progress (Busy) D: Offset acquisition completed (DONE) E: Offset acquisition error (ERROR) (d) Operating status of the gantry This data indicates the operating status of the gantry: R: The gantry is ready to rotate.
Page 281 (h1) to (h8) Error status These data indicate the error status: (h1) Beam trimmer Slit DAS mode Wedge (h2) Horizontal Gantry rotation Gantry tilting External light movement of projector couch 1 (h3) OPCONTM Main Vertical movement of couch (h4) GTS system (Cannot be used) MUDAT (Cannot be used)
Page 282 (k) Gantry tilting interlocks This data indicates interlock information of the gantry tilt. + direction - direction Tilt possible Tilt possible Tilt disabled Tilt possible Tilt possible Tilt disabled Tilt disabled Tilt disabled (l1) to (l3) Gantry rotation information The following are gantry rotation status: (l1) (l2) (l3)
Page 283 (o1) to (o4) Position information of the couch (vertical) This data indicates the vertical position of the couch. (o1) Couch height code + : Plus position (0  2B) - : Minus position (0  2D) (o2) to (o4) Couch height (in millimeters) (o2)(o3)(o4) mm (p1) to (p4) Tilt angle information of the gantry (p1)
Page 284 Request status This shows the status of control requests from GMSC to SS/ADI. The eight bits from D7 to D0 are allocated in the following manner: * For the above bits, 1 corresponds to the effective status. D7: Fixed to 0 D6: Fixed to 0 D5: Fixed to 1 D4: Fixed to 1...
Page 285 (4) Return status --- R Status --- Wedge=[0], DAS Mode=[222], Slice Thickness=[000], Row=[00], Focus=[0], (b1) to (b3) (c1) to (c3) (d1) to (d2) Tracking collimator offset [30 30 30], Beam Trimmer=[000], Undefined Data=[0], (f1) to (f3) (g1) to (g3) WedgeACC Mode=[0], WedgeACC Wait Time [0000], Detector=[040], (h1) to (h3) Light=[0], Slide=[0], Height=[0], Gantry Tilt=[0], Light Tilt=[0], Light Tilt Position=[+000], (n1) to (n4)
Page 286 (b1) to (b3) DAS mode Indicates the DAS mode setting status. Setting value (b1) Main (b2) Ref (b3) BMD GAIN0 GAIN1 GAIN1 GAIN1 GAIN2 GAIN2 GAIN2 GAIN3 GAIN3 GAIN3 GAIN4 GAIN4 GAIN4 GAIN5 GAIN5 GAIN5 GAIN6 GAIN6 GAIN6 GAIN7 GAIN7 GAIN7 (c1) to (c3): Scan slice thickness (slit) Indicates the status of the scan slice thickness (slit) position.
Page 287 (f1) to (f3): Tracking collimator offset Indicates the status of the tracking collimator offset position. (f1) (f2) (f3) Tracking collimator offset Position not identified Offset amount  XX + or - 0 to 9 0 to 9 (g1) to (g3): Beam trimmer (unused) Indicates the beam trimmer status.
Page 288 (m) Tilt status of the external light projector The following shows the operating status of each of the above: Settings Horizontal Vertical Gantry tilting External light movement of movement of projector couch top couch 0 (0  30) At halt At halt At halt At halt...
Page 289 (o3) DAS mode error details : 0 fixed : 1 fixed D5 to D2 : Not in use : Input parameter error : Operating time-out (o4) Wedge error details D7: 0 fixed D6: 1 fixed D5: Not in use D4: Not in use D3: Pulse motor abnormal D2: Software error D1: Input parameter error...
Page 290 (o7) Gantry tilting error details D7: 0 fixed D6: 1 fixed D5: Reverse movement (2  or more)/indicator angle data abnormal  D4: Limit error D3: Watchdog error  D2: Tilt movement time-out/encoder time-out  D1: Data error (specified tilt angle error) D0: Interlocks interrupted (o8) Light projector : 0 fixed...
Page 291 (o11) DAS error details D7: 0 fixed D6: 1 fixed D5: X-ray system error (X-RAY ON status continues even after X-ray generation is terminated.) D4: Gantry rotation system error D3: Initialization error (DAS CCP) D2: Time-out D1: DAS CCP interrupt abnormal D0: Software error or interruption of operation due to interlock activation (o12) Couch vertical movement error details D7: 0 fixed...
Page 292 (o17) COM-PRE error details (unused) D7: 0 fixed D6: 1 fixed D5: 0 fixed D4: 0 fixed D3: 0 fixed D2: 0 fixed D1: 0 fixed * D0: 0 fixed * This will be generated when a metallic object is present or when X-ray generation is stopped during scanning.
Page 293 (p1) to (p16): Details of DD motor errors (not used) (q1) to (q4): Abnormal MUDAT channels (q1) Not defined Not defined Not defined Not defined Not defined Not defined (q2) Not defined Not defined Not defined Not defined Not defined Not defined (q3) Not defined Not defined Not defined Not defined Not defined Not defined (q4)
Page 294 Relationship between tilt encoder value and actual angle (1/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 295 Relationship between tilt encoder value and actual angle (2/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 296 Relationship between tilt encoder value and actual angle (3/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 297 Relationship between tilt encoder value and actual angle (4/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 298 Relationship between tilt encoder value and actual angle (5/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 299 Relationship between tilt encoder value and actual angle (6/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 300 Relationship between tilt encoder value and actual angle (7/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 301 Relationship between tilt encoder value and actual angle (8/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 302 Relationship between tilt encoder value and actual angle (9/9) Display Encoder Display Encoder Display Encoder Display Encoder angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) angle value Actual angle (DEG) (DEG) (HEX) (DEG) (HEX) (DEG) (HEX)
Page 303 Gantry Rotation The servicing of the gantry rotation section is described in this section. DANGER: 1. When servicing is to be performed with the gantry cover open, be sure to turn OFF the power of the system at the distribution board and wait for five minutes or more to prevent workers from receiving electric shocks or being injured due to unexpected system operations.
Page 304 3.7.2 Brake release method The gantry rotation motor is provided with a brake. To turn the rotation section manually, release the brake as described in the steps below. Be sure to release the brake, because turning the rotation section without releasing the brake may lead to brake malfunctions.
Page 305 3.7.3 Gantry rotation interlock (When the gantry cover is opened) When any one of the front cover, left side cover (viewed from the front), or rear upper cover of the gantry is opened, the cover switch is set to OFF and gantry rotation is disabled.
Page 306 List of gantry cover interlocks (when the KGTSM PWB is installed) Conditions Gantry status Front cover KGTSM PWB Rotation Rotation Power Remarks Gantry breaker warning contactor Description of use Cover SW Enable SW Error rotation CP320 lamp MC320 MS320 SW320 message LED38 LED37...
Page 307 List of gantry cover interlocks (when the GMSC is installed) Conditions Gantry status Rotation Front cover GMSC PWB Remarks Rotation Power contactor Gantry breaker Cover SW Enable SW Description of use Error message warning lamp MC320 rotation CP320 MS320 SW320 Disabled The AC motor power is turned OFF for maintenance use.
Page 308 3.7.4 Offsets and rotation speed of the gantry servo motor 3.7.4.1 Offset and speed checks The offset and speed of the gantry servo motor must be checked and adjusted in the following cases: (1) Offset check and adjustment When the system is installed, when the KGTSM (GMSC) PWB is replaced, or when the servo amplifier is replaced, perform offset check and adjustment.
Page 309 3.7.4.2 Check and adjustment of the rotation speed of the gantry The KGTSM (GMSC) has a function to check and adjust the rotation speed of the gantry. After the gantry starts to rotate and acceleration to the specified rotation speed is completed, the KGTSM checks its rotation speed and performs the following according to the speed: (1) When the rotation speed is within...
Page 310 3.7.5 Gantry rotation speed check (for the KGTSM) This subsection describes procedures to check the rotation speed of the gantry. The rotation speed of the gantry at the start-up of the gantry, speed data, and required speed correction can be obtained by executing a speed check. Be careful when rotating the gantry.
Page 311 (4) 5 seconds after the gantry starts to rotate, read the KGTSM message on the PC.  If the error of the rotation speed of the gantry is  3% or less Read the current gantry speed and the standard gantry speed on the PC and compare them.
Page 312 3.7.6 Gantry rotation speed check and fine adjustment procedure (for the GMSC) This subsection describes procedures to check and finely adjust the rotation speed of the gantry. The rotation speed of the gantry at the start-up of the gantry and speed data can be obtained by executing a speed check.
Page 313 (4) Confirm the gantry rotation speed by checking the GMSC message displayed on the PC after the gantry starts rotating and the speed becomes constant. (a) If the error of the rotation speed of the gantry is  3% or less Read the current gantry speed and the standard gantry speed on the PC and compare them.
Page 314 3.7.7 Adjustment of the gantry servo-amplifier offset 3.7.7.1 Preparation <Preparation procedure> (1) Turn OFF the breaker CP1 beneath the rear left of the gantry. (2) Open the gantry front cover. Turn OFF the servo amplifier breaker CP320. (3) Open the side cover on the servo-unit side (left front of the gantry). (4) Remove the servo unit metal cover.
Page 315 3.7.7.2 Offset verification (for KGTSM) <Verification procedure> (1) Turn OFF the servo amplifier breaker CP320. (2) After the breaker CP1 is turned OFF beneath the rear left of the gantry, change the KGTSM PWB DSW10 setting as follows: (3) Turn ON breaker CP1, release the brake by setting the brake release switch SW326 to the upper position, and then turn ON breaker CP320.
Page 316 3.7.7.3 Offset verification (for GMSC) <Verification procedure> (1) Change the settings of DSW4 and DSW10 on the GMSC PWB as follows to reset. (2) After performing gantry rotation, turn OFF the servo amplifier breaker CP320. Turn OFF the breaker CP1 on the lower left of the rear of the gantry. (3) Turn ON breaker CP1, release the brake by setting the brake release switch SW326 to the upper position, and then turn ON breaker CP320.
Page 317 3.7.7.4 Speed command offset adjustment <Adjustment procedure> (1) Follow the procedures described in (1) to (3) of subsection 3.7.6.2 to set DSW10 on the KGTSM (GMSC) PWB to the settings for checking. The servo pack is set to servo ON status by the command from the KGTSM (GMSC) PWB. (2) Press the key to set auxiliary function execution mode.
Page 318 3.7.8 Adjustment of gantry rotation speed by the servo amplifier (for the KGTSM) The rotation speed is monitored in the same manner as previously by connecting the cable between the KGTSM PWB and PC. <Adjustment procedure> (1) Use the PC to check the rotation speed at 0.75 second. (2) When the rotation speed setting is incorrect, rotate the variable resistor VR1 on the KGTSM PWB and adjust the rotation speed.
Page 319 (4) The gantry rotation speed can be adjusted in increments of ±2 (0 in normal use). The speed data during adjustment should be checked using the method described above. Specifying a positive (+) value increases the speed and specifying a negative (-) value decreases the speed.
Page 320 3.7.10 Checking the rotation speed voltage sent from KGTSM PWB to the servo speed amplifier This subsection describes procedures to check the voltage value corresponding to the rotation speed of the gantry. The voltage is sent from the KGTSM PWB to the servo amplifier.
Page 321 (3) Turn ON the power to the gantry. (4) When the KGTSM starts up, set bit 1 of DIP switch DSW4 OFF, and press the RESET switch (SW21, white). An asterisk "*" appears on the PC. (5) Type the following (with lowercase characters) from the PC. 934001 934001 03 [CR]...
Page 322 3.7.11 Servo amplifier setting and verification Panel indicator Panel indicator keys Design of servo amplifier No. 2D201-176EN*D...
Page 323 The panel indicator display mode is switched cyclically each time the panel MODE/SET indicator key is pressed, as shown in the figure below. Control power ON Press the key. MODE/SET Status display mode Press the key. MODE/SET Auxiliary function execution mode Press the key.
Page 324 3.7.11.1 Preparation <Preparation procedure> (1) Turn OFF the breaker CP1 situated beneath the rear left of the gantry. (2) Open the gantry front cover. Turn OFF breaker CP320. (3) Remove the servo unit metal cover. (4) Turn ON the breaker CP1. (5) Turn ON the servo amplifier breaker CP320.
Page 325 Constant setting data check/change method (for user constants with 5 or fewer digits) <Check/change procedures> (1) Press the key twice. MODE/SET Status display mode Auxiliary function execution mode (When the MODE/SET is pressed once) Constant setting mode (When the key is pressed MODE/SET a second time) (2) Use the...
Page 326 Constant setting data check/change method (for user constants with 6 digits or more) <Check/change procedures> Since only up to 5 digits can be displayed on the panel indicator, constants with 6 digits or more are indicated as follows. The position (top, center, or bottom) of the blinking bar on the left indicates the digit position.
Page 327 (4) When the key is held down again for more than 1 second, the central 4 digits of the current data of the selected user constant are displayed (note that the blinking bar on the left is at the center). Here, the central 4 digits of Pn522 are currently "0000".
Page 328 (7) After recording is completed, hold down the key again for more than 1 second. The display returns to user constant display.  To check user constants, repeat steps (2)  (3)  (6).  To change user constants, repeat steps (2)  (3)  (4)  (5)  (6). ...
Page 329 Function selection user constant data check/change method <Check/change procedures> (1) Press the key twice. MODE/SET Status display mode Auxiliary function execution mode (When the MODE/SET is pressed once) Constant setting mode (When the key is pressed MODE/SET a second time) (2) Use the key to select the digit number and press the (UP) or...
Page 330 (6) Hold down the key again for more than 1 second. The display returns to DATA/ user constant number display.  To check function selection user constants, repeat steps (2)  (3)  (6).  To change function selection user constants, repeat steps (2)  (3)  (4)  (5)  (6).
Page 331 Types of function selection user constants User constant Type Name Setting Details number Function selection Pn000 Function selection basic switch 0001 constant Pn001 Function selection application switch 1 0002 Pn002 Function selection application switch 2 0100 Pn006 Function selection application switch 6 0000 Pn007 Function selection application switch 7...
Page 332 List of user constants (1/5) Setting User Setting Setting value Type Category Name constant range unit (Toshiba spec.) Pn000 Setting Function selection basic switch 0 0000 to 00B3 0001 Pn001 Setting Function selection basic switch 1 0000 to 1122 0002...
Page 333 List of user constants (2/5) Setting User Setting Setting value Type Category Name constant range unit (Toshiba spec.) Pn141 Tuning Model follow-up control switch 10 to 20000 0.1/s Pn142 Tuning Model follow-up control switch 500 to 2000 0.001 1000 Tuning...
Page 334 List of user constants (3/5) Setting User Setting Setting value Type Category Name constant range unit (Toshiba spec.) Pn300 Setting Speed command input gain 150 to 3000 0.01 V/ rated speed Pn301 Setting Internal setting speed 1 0 to 10000...
Page 335 List of user constants (4/5) Setting User Setting Setting value Type Category Name constant range unit (Toshiba spec.) Pn501 Setting Zero clamp level 0 to 10000 1 min Pn502 Setting Rotation detection level 1 to 10000 1 min Pn503 Setting...
Page 336 List of user constants (5/5) Setting User Setting Setting value Type Category Name constant range unit (Toshiba spec.) Pn534 Setting Program jog 2 to 10000 1 ms acceleration/deceleration time Pn535 Setting Program jog waiting time 0 to 10000 1 ms...
Page 337 Setting User Digit value Name Setting Details constant position (Toshiba spec.) Counterclockwise rotation is considered the normal rotation direction. Clockwise rotation is considered the normal Rotation direction Pn000 rotation direction (reverse rotation mode). selection Reserved parameter (must not be changed)
Page 338 User Digit value Name Setting Details constant position (Toshiba spec.) None T-REF is used as the external torque limit input. Speed/position control selection T-REF is used as the torque feed forward input. (T-REF allocation) T-REF is used as the external torque limit input when P-CL and N-CL are "valid".
Page 339 User Digit value Name Setting Details constant position (Toshiba spec.) Motor rotation speed (1 V/1000 min Speed command (1 V/1000 min Torque command (1 V/100%) Position deviation (0.05 V/1 command unit) Position amplifier deviation (number of electronic gear teeth) (0.05 V/1 encoder pulse unit)
Page 340 Setting User Digit value Name Setting Details constant position (Toshiba spec.) Only the setting parameter is displayed. Selection of the console parameter display All parameters are displayed. Zero-speed stop Selection of the method for stopping the Gr. 2 DB stop or free run stop (The stop method is the alarm same as for Pn001.0.)
Page 341 List of function selection user constant switches (5/5) Setting User Digit value Name Setting Details constant position (Toshiba spec.) Pn170 Selection of no- The no-adjustment function is disabled. adjustment function The no-adjustment function is enabled. Control method at the Used for speed control. time of speed control Used for speed control.
Page 342 User Digit value Name Setting Details constant position (Toshiba spec.) The sequence input signal terminals are used as assigned at the time of shipment. Input signal assignment mode Assignment of the sequence input signals is changed according to the signals.
Page 343 List of function selection user constant input signal selections (2/3) Setting User Digit value Name Setting Details constant position (Toshiba spec.) N-OT signal assignment [Reverse drive rotation 0 to F Same as for /S-ON signal assignment. prohibited when the input signal is OFF (H level)]...
Page 344 List of function selection user constant input signal selections (3/3) Setting User Digit value Name Setting Details constant position (Toshiba spec.) /ZCLAMP signal assignment [Zero-clamp actuated 0 to F Same as for /S-ON signal assignment. when the input signal is ON (L level)] /INHIBIT signal...
Page 345 User Digit value Name Setting Details constant position (Toshiba spec.) Invalid (the output signal is not used.) Positioning completion Output from CN1-25, 26 output terminals. signal (/COIN) Output from CN1-27, 28 output terminals. assignment Output from CN1-29, 30 output terminals.
Page 346 3.7.11.3 Servo pack error check method (*1) The alarm occurrence number and time stamp can be checked using the servo pack.  In alarm traceback mode, the last 10 alarm information items (abnormality information items) can be displayed.  If the same alarm occurs twice or more in succession, the alarm information is not recorded again if the interval between successive occurrences is 1 hour or less.
Page 347 (3) Press the (UP) or (DOWN) key to display the previous or next alarm, respectively. The higher the alarm occurrence number, the older the alarm data. Alarm occurrence number Alarm details Indicates alarm data (abnormal information). Refer to the alarm display list. The higher the alarm occurrence number (0 to 9), the older the alarm data.
Page 348 Servo pack alarm display list (1/2) Alarm ALM output Alarm name Contents of alarm display A.02  Parameter breakdown Servo pack EEPROM data is abnormal.  A.03 Abnormal main circuit detector unit Each detection data in the power circuit is abnormal. ...
Page 349 Servo pack alarm display list (2/2) Alarm ALM output Alarm name Contents of alarm display A.C1  Runout prevention signal detection The servo motor has run out.  A.C8 Encoder clear error The number of multiple turns of the absolute value Multi-turn limit setting error encoder could not be cleared or set correctly.
Page 350 KGTSM Adjustment Checks 3.8.1 Movement range setting method for couch autoslide The method for setting the movement range for couch autoslide on the GTS is described here. Once the distances are set on the GTS, they will be maintained by the GTS until rewritten.
Page 351 5) Set the autoslide values using the following procedure: a) Press [Enter]. b) Input: auto [Enter] autoslide move value: c) Input a desired autoslide value: If 310 mm 310 [Enter] If 310.5 mm 310.5 [Enter] d) The input value will be displayed: autoslide move value XXX.X mm are you sure? y/n: To confirm the set value...
Page 352 3.8.2 Setting the zero-clear time for couch sliding It is necessary to keep the zero-clear switch pressed for a period of time to execute zero-clear for couch sliding. The procedure for setting this time period is outlined below. <Tools required> ...
Page 353 3.8.3 Procedure for setting the couch horizontal movement absolute value control data (1) Contents The procedure for setting the distance between the couch slide sensors in the KGTSM is described below. Once the value has been set for this item, the KGTSM retains the value until it is changed.
Page 354 c) Enter the desired number. To set data 1 1 [Enter] To set data 2 2 [Enter] To set data 3 3 [Enter] To set data 4 4 [Enter] To set data other than 1 to 4 : 5 [Enter] d) The display differs depending on the number that was entered in step c).
Page 355 Enter the data for the distance between IN Limit and IN-1. For 50 mm 500 [Enter] For 50.5 mm 505 [Enter] IN-1 - OUT2: (ZZZZ)? (ii) Enter the data for the distance between IN-1 and OUT2. For 1463 mm 14630 [Enter] For 1463.5 mm 14635 [Enter] (iii) Enter the data for the distance between OUT2 and OUT1.
Page 356 3.8.4 Couch-top sliding fine adjustment function setting procedure (1) Contents The procedure for setting the couch-top sliding fine adjustment to ON or OFF is described below. Once the value has been set for this item, the KGTSM retains the value until it is changed. <Tools required>...
Page 357 3.8.5 Footswitch mode selection procedure (1) Contents The procedure for selecting the couch footswitch mode is described below. Once the value has been set for this item, the KGTSM retains the value until it is changed. <Tools required> 1) PC 2) Cable for service use (standard GR-1) 3) HyperTerminal, etc.
Page 358 3.8.6 Procedure for setting the couch vertical movement stop position in auto-set mode (1) Contents The procedure for setting the couch upward movement stop position when couch vertical movement is performed in Auto-set mode is described below. This stop position setting is applicable only if the footswitch mode is set to "Auto-set/Auto- home".
Page 359 d) The following is displayed. *** H command preset data *** auto slide = XXXX 0 clear time = YYYY IN Limit - IN-1 = ZZ.Z mm, IN-1 - OUT2 = ZZZZ.Z mm OUT2 - OUT1 = ZZ.Z mm, OUT1 - OUT Limit = ZZ.Z mm Couch adjustment = on or off Foot sw = auto-set/auto-home Height position = HEIGHT-0.5 or HEIGHT-1 or HEIGHT-0 or UP-Limit...
Page 360 3.8.8 Checking the couch top speed <Tools required>  Measuring tape  Stopwatch  Persons required for work: 2 <Work procedure> 1) Attach the measuring tape to the couch. Use tape to attach a cable tie to the couch top as a measurement marker. Attach a cable tie so that the scale of the measuring tape can be used for measurement.
Page 361 For GMSC 3.9.1 Types of control data for the gantry and patient couch The control data for the gantry and patient couch is retained in the memory of the GMSC PWB. When the GMSC PWB or the backup battery on the GMSC PWB is replaced, the control data must be reset.
Page 362 (3) Replacement procedures (a) Turn OFF the power supply and remove the old battery. (b) Install a new battery. (c) Perform the setting and adjustment procedures described on the previous page. CAUTION: Battery replacement must be performed by trained service personnel. Otherwise, the battery may overheat, possibly resulting in a fire.
Page 363 (5) Set the autoslide values using the following procedure: (a) Press [Enter]. (b) Enter "sld" and press the [Enter] key. --- Slide Setting --- 1. Auto-Slide 2. Zero Clear Button Duration 3. Fine Slide q. Quit (Number or q) ? (c) Enter "1".
Page 364 3.9.3 Setting the zero-clear time for couch sliding It is necessary to keep the zero-clear switch pressed for a period of time to execute zero-clear for couch sliding. The procedure for setting this time period is outlined below. (The setting at the time of shipment is 2 s.) Once the time value is set on the GMSC, it will be maintained by the GMSC until rewritten.
Page 365 (e) Enter "q". The Setting is written to EEPROM. Are you sure? (y/n) To make the entered value effective after resetting, enter "y". To cancel the entered value, enter "n". 3.9.4 Procedures for setting the system name and patient couch type The procedures for setting the system name and patient couch type in the GMSC PWB are described below.
Page 366 (d) Select the system name. For an Alexion Access system, enter "10". The patient couch selection menu is displayed. --- Table Type [****] --- 1. CBTB-029A (Long) 2. CBTB-029B (Short) 3. Other q. Quit (Number or q) ? (e) Select the patient couch type. For the CBTB-029A, enter "1".
Page 367 (5) Follow the steps below to perform setting. (a) Press [Enter]. (b) Enter "sld" and press the [Enter] key. --- Slide Setting --- 1. Auto-Slide 2. Zero Clear Button Duration 3. Fine Slide q. Quit (Number or q) ? (c) Enter "3". --- Fine Slide Activation ---[**]--- 1.
Page 368 3.9.6 Footswitch mode selection procedure The procedure for selecting the couch footswitch mode is described below. (The UP/DOWN setting is performed at the time of shipment.) Once the value has been set for this item, the GMSC retains the value until it is changed. <Setting procedure>...
Page 369 3.9.7 Procedure for setting the couch vertical movement stop position in AUTO-SET mode The procedure for setting the couch upward movement stop position when couch vertical movement is performed in AUTO-SET mode is described below. (The couch upward movement stop position is set to the HEIGHT-05 position at the time of shipment.) Once the value has been set for this item, the GMSC retains the value until it is changed.
Page 370 3.9.8 Procedure for adjusting the couch height display The procedure for adjusting the couch height displayed on the operating panel is described below. Once the value is set on the GMSC, it will be maintained by the GMSC until rewritten. <Setting procedure>...
Page 371 3.9.10 Check of line voltage (+5 V) and adjustment procedure (1) +5 V power supply adjustment Measurement points TP7 (+5 V) and TP3 (GND) on the GMSC PWB Standard +5 V (+0.0 V to 0.1 V) Adjustment power supply : PS381 3.9.11 Checking the couch top speed <Tools required>...
Page 372 3.10 Miscellaneous 3.10.1 Replacing the PWBs 3.10.1.1 Checks and adjustments after parts replacement (KGTSM (GMSC) and rotation servo amplifier) When the KGTSM (GMSC) PWB, the servo amplifier, and/or the servo motor are replaced, the following checks and adjustments are required: <For KGTSM>...
Page 373 3.10.1.2.2 Setting HyperTerminal (1) Select [Programs]  [Accessories]  [HyperTerminal] or [Programs]  [Accessories]  [Communication]  [HyperTerminal] from the start menu of Windows to open the following window. (2) When the window shown below opens, double-click the "Hypertrm.exe" icon. (3) Enter a name in the "Name"...
Page 374 (4) When the following window is displayed, set 'Connect using' to 'Direct to Com10' or 'Com10' and click [OK]. (5) When the following window is displayed, perform port setting as shown below. After setting of all items is completed, click [OK]. HyperTerminal starts up. No.
Page 375 3.10.1.2.3 PWB replacement method (1) Turn OFF the power of the gantry. (2) Remove the gantry covers and GTS-ASSY metal mesh plate. (3) Lay down an antistatic mat and put on clean gloves and an antistatic wrist strap. (4) Replace the PWB. (5) Turn ON the power of the gantry with the power cable connected to CN491 of the GMSC PWB and the USB cable connected to CN404A of the GMSC PWB.
Page 376 (2) VCP driver software installation procedure (a) Run the installation executable file (CP210x VCP Win XP S2K3 Vista 7.exe) and then perform the installation procedure as shown in the figures below. (b) Turn ON the power switch of the GMSC PWB and connect the USB-B cable between the installation PC and CN404A of the GMSC PWB.
Page 377 (3) Firmware installation procedure Perform the following procedure to install the GMSC firmware. (a) Connect the USB-B cable between the installation PC and CN404A of the GMSC PWB and set DSW 2-1, -2, and -8 to ON. The other switches must be set to OFF. DSW2 (b) Turn ON the power switch of the gantry and confirm in Device Manager at the installation PC that the drive port number is set to COM10.
Page 378 (c) After resetting the GMSC PWB by pressing SW21 on the GMSC PWB, execute (double-click) the "DC*****.bat" file in the root directory of the installation CD-R. At this time, be sure to execute the batch file whose name matches the DC number written on the firmware version identification label on the PWB.
Page 379 (e) After installation data transfer is completed, deletion from and writing to the flash memory are performed automatically. After installation is completed normally, the following window opens. NOTE: Confirm that "OK" is displayed at the end of the line starting with the character string "CheckSUM", as shown in the figure above.
Page 380 3.10.1.2.5 Applying the data version identification label (1) Write the DC number of the installed firmware on the data version identification label using a permanent marker (black) as shown below. No. 2D201-176EN*D...
Page 381 (2) Apply the label at the location on the PWB shown in the figure below. Gr. identification label application location and detail view No. 2D201-176EN*D...
Page 382 3.10.2 Explanation of the GTS system setting switches (for KGTSM) 3.10.2.1 DIP switch DSW4 (Normal setting) SW1 : ON = KGTSM mode OFF = Test mode SW2 : Not in use SW3 : Not in use SW4 : For couch height/tilt/projector adjustment (Usually OFF) SW5 : For software test (Usually OFF) SW6 :...
Page 383 3.10.3 Explanation of the GTS system setting switches (for GMSC) 3.10.3.1 DIP switch DSW1 (FPGA system setting) : Not in use (OFF) : System setting (OFF) : System setting (OFF) : Not in use (OFF) : Not in use (OFF) : Not in use (OFF) : Not in use (OFF) : Not in use (OFF)
Page 384 3.10.3.2 DIP switch DSW11 (firmware system setting) : Not in use (OFF) : Not in use (OFF) : Not in use (OFF) : Not in use (OFF) : Not in use (OFF) : 2-phase control (ON)/1-phase control (OFF) : Not in use (OFF) : Not in use (OFF) Couch setting Remarks...
Page 385  When CBTB-029 is connected Check parameter No. 42 of the couch horizontal movement servo amplifier. For the parameter check method, refer to "Couch slide servo amplifier". DIP switch settings Parameter No. 42 Switches ON/OFF setting DSW11 Set 6 to ON. DSW11 All OFF 3.10.3.3 DIP switch DSW13 (display adjustment)
Page 386 3.10.3.4 DIP switch DSW4 (maintenance setting) : D-SUB (ON)/USB (OFF) Terminal connection connector : Not in use (OFF) Communication port selection : Not in use (OFF) : Not in use (OFF) : For software test (usually OFF) : For software test (usually OFF) : Not in use (OFF) : Not in use (OFF) (a) Terminal connection connector selection...
Page 387 3.10.3.5 DIP switch DSW10 (for maintenance) : Not in use (OFF) : Not in use (OFF) : Test mode: Optical system test mode (ON)/normally OFF : Test mode: Rotation test mode (ON)/normally OFF 3.10.3.6 DIP switch DSW2 No. 2D201-176EN*D...
Page 388 3.10.4 Gantry X-ray tube position information The following X-ray tube position information is available: (1) Gantry encoder data for rotation control (a) The data can be seen under "X-ray-pos" in KGTSM (GMSC) status. (b) Slowdown and stop position of the gantry are controlled. (c) The data is incremented for each gantry encoder pulse.
Page 389 No. 2D201-176EN*D...
Page 390 3.10.5 Optical system operation 3.10.5.1 Slit operation (1) Operation (a) The slit always returns to the reference position before it moves to the specified position. (b) The slit does not move if the current position and the specified position are the same.
Page 391 3.10.6 Couch slide servo amplifier 3.10.6.1 Outline of the couch horizontal movement section control (1) When the power is turned ON, the KGTSM (GMSC) turns ON the relay (on the KGTSP) supplying 24 VDC to the brake and clutch during initialization and transmits the servo ON signal to the slide servo amplifier.
Page 392 (3) The couch horizontal movement drive section has an encoder (2500 pulses/rotation) at the motor and the servo amplifier checks the feedback pulse to confirm that operation is as specified by the instruction pulse from the KGTSM (GMSC). Feedback pulse: 2500 pulses/rotation In the servo amplifier, this 2500 pulses/rotation is quadrupled and used.
Page 393 3.10.6.2 Action to be taken when a slide servo error occurs Identify the error by checking the blinking interval of the LEDs on the applicable alarm panel. Alternatively, connect a PC to the slide servo amplifier to check the contents of the alarm.
Page 394 3.10.6.3 Maintenance tool operating procedure (1) The maintenance tool includes the following software (CD-R) and the communication cable. To use the maintenance tool, install the software in the PC and connect the communication cable between the PC and the servo amplifier. Software CBTB series test tool CD-R...
Page 395 (3) Maintenance software installation procedure Use the equipment to install the maintenance software (PANATERM).  Windows PC in which a CD-R can be read  CD-R for data installation (a) Place the installation CD-R in the disk drive of the PC. (b) Open the English folder on the CD-R.
Page 396 When the OS is Windows XP or Windows 7 Double-click the setup program (Setup_WinXP_7.exe). No. 2D201-176EN*D...
Page 397 (d) The PANATERM setup program starts up. Follow the procedures below to perform installation. No. 2D201-176EN*D...
Page 398 (4) Maintenance tool startup procedure (a) Connect the servo amplifier and the PC using the communication cable (CX79-11190-1.) (b) Start up PANATERM. Place a check mark for "Communicate with the amplifier" and click [OK]. (c) Select the series of the servo amplifier as shown in the figure below and click [OK].
Page 399 (d) After setting is completed, the following window is displayed. No. 2D201-176EN*D...
Page 400 (5) Parameter menu This menu can be used to check the parameters in the servo amplifier. If the parameter settings are incorrect, this menu can also be used to overwrite them. Click this. (a) To check parameters, select "Read-out from the amplifier" and click [OK]. No.
Page 401 (b) The following window is displayed. For longitudinal movement Slide the scroll bar to check all the parameter settings. No. 2D201-176EN*D...
Page 402 (c) Details of the parameter setting window For longitudinal movement  Read : Reads data from the file (.prm) in the local folder.  Save : Saves the parameters as a file in the folder of the PC.  Cmnt : Comments can be added when parameters are saved.
Page 403 NOTE: 1. After the parameters are sent to the servo amplifier, if the power is turned OFF without writing them onto the EEPROM, the new settings become invalid and the previous settings remain valid. 2. After writing the parameters onto the EEPROM, be sure to turn the power OFF and then ON again.
Page 404 (6) Monitor menu This menu can be used to check the input/output status of the signals between the KGTSM (GMSC) and the servo amplifier, the number of instruction pulses from the KGTSM (GMSC), and the number of motor encoder feedback pulses. Click this.
Page 405 (a) In the following window, the input/output signal status can be checked. (The following window is for the standby status in normal operation.) +A : Active Inactive For longitudinal movement  Servo-ON Input signal from the KGTSM (GMSC) to the servo amplifier ...
Page 406 (b) In the following window, the number of instruction pulses from the KGTSM (GMSC) and the number of motor encoder feedback pulses can be checked. IN movement Both the instruction pulse and the feedback pulse count up in the + (positive) direction. OUT movement : Both the instruction pulse and the feedback pulse count up in the - (negative) direction.
Page 407 (7) Alarm menu This menu can be used to check the contents of the currently generated alarm and the previously generated alarms (14 alarms). Click this. No. 2D201-176EN*D...
Page 408 (a) Alarm window This is used to clear the currently generated alarm. This is used to clear the alarm history. *: The value displayed at the beginning of the alarm contents is the alarm code. *: Depending on the alarm contents, it may not be possible to clear the currently generated alarm until its cause is removed.
Page 409 3.10.6.4 Alarm code list The alarm list is given below. An alarm item marked * cannot be cleared unless the power is turned OFF and the cause is removed. Contents of alarm Alarm code Cause Under voltage The PN voltage of the main power supply converter section dropped during servo ON.
Page 410 3.10.6.5 Parameter list The parameters that have been set are listed below. Note that this list does not include the parameters used only by the servo amplifier manufacturer. Setting (read from the Parameter maintenance tool; in decimal notation) Axis address Initialized console LED Control mode set-up Over travel input inhibit...
Page 411 Setting (read from the Parameter maintenance tool; in decimal notation) Position control switching delay time Position control switching level Position control switching hysteresis Position loop gain switching time Command pulse multiplier set-up Command pulse logic inversion Command pulse input mode set-up Output pulses per single turn 2500 Pulse output logic inversion...
Page 412 Setting (read from the Parameter maintenance tool; in decimal notation) External regenerative discharge resister selection 1st excessive speed level set-up 2nd torque limit set-up 2nd excessive position deviation set-up 1875 2nd excessive speed level set-up No. 2D201-176EN*D...
Page 413 3.10.7 Patient couch control troubleshooting 3.10.7.1 Vertical movement system (Before starting work, be sure to confirm that the gantry and the patient couch are not interlocked.) (1) When couch UP movement cannot be performed (a) Check whether the UP line circuit protector (CP5) is set to OFF. (b) Check whether CP5 is disconnected from the protector terminal board.
Page 414 (2) When couch DOWN movement cannot be performed (a) Check whether 200 VAC is detected between pins 8 and 10 of CNN1 and between pins 9 and 10 of CNN1 when DOWN movement is instructed. (b) If 200 VAC is detected in step (a) above, there is a possibility of contact failure or disconnection of the cables up to the DOWN valve or at connector CNN21.
Page 415 3.10.7.2 Couch horizontal movement (Before starting work, be sure to confirm that the gantry and the patient couch are not interlocked.) (1) Servo error: Insufficient voltage protection (alarm 11) (a) Check the voltages between the three-phase cables (three pairs) of the slide servo amplifier input connector CN X1.
Page 416 (4) Servo amplifier error: Internal resistor overheat protection (alarm 15) (a) The servo amplifier is overheated. Improve the operating conditions. If an error occurred during operation under normal conditions, replace the slide servo amplifier. (5) Servo error: Overload protection (alarm 16) (a) Check the parameters referring to the section describing the maintenance tool operating procedure.
Page 417 (9) Servo error: Excessive position deviation protection (alarm 24) (a) Check the parameters referring to the section describing the maintenance tool operating procedure. (b) If the parameters are correct, check the terminal voltages of the clutch and brake (24 VDC) at the clutch terminal board. If 24 VDC is applied at both terminals, the voltages are normal.
Page 418 (11) Servo error: Instruction pulse frequency division protection (alarm 27) (a) Check the parameters referring to the section describing the maintenance tool operating procedure. (b) If the parameters are correct, the slide servo amplifier is defective. Replace it. (12) Servo error: Deviation counter overflow protection (alarm 29) (a) Check the parameters referring to the section describing the maintenance tool operating procedure.
Page 419 (19) Servo error: Motor automatic identification abnormality protection (alarm 95) (a) Check the continuity of the cable between the slide servo amplifier and the motor encoder (CNN14). (b) If there is no problem with the cable, the motor encoder is defective. Replace it.
Page 420 (24) KGTSM message SLIDE: hardware failure (a) Check whether or not an alarm is detected at the slide servo amplifier. If an alarm is detected, investigate the cause based on the descriptions given above and take appropriate actions. (b) If no alarm is detected, check the parameters in the slide servo amplifier. (c) If the parameters are correct, obtain the alarm occurrence status (eXam Plan, etc.) and the KGTSM message and contact Nasu Operations.
Page 421 3.10.8 Check of safety circuit on the KGTSM PWB 3.10.8.1 Purpose (1) Check the safety signal from the operating panel (2) Check the safety signal from the console (3) Check the safety signal from the maintenance panel (4) Check the function of the timers on the KGTSM PWB for the safety circuit (each timer for tilting, vertical movement, and horizontal movement) (5) Confirm that the slide runout detection circuit functions normally.
Page 422 (7) Change the KGTSM PWB DSW10 setting as follows: DSW10 Normal setting Setting for safety circuit check (8) Set SW31 and SW32 to "0". (9) The gantry/couch operation start switch on the keyboard of the console side should remain OFF. If an operator is performing operation at the console, ask the operator to discontinue console operation during checking.
Page 423 Tilting Turn ON gantry CP1 to supply power to the system. (1) Check of safety circuit for tilting <Preparation>  The AUTO SLIDE stroke is displayed on the screen of the PC.  The 0 clear time is displayed on the screen of the PC. <Procedure>...
Page 424 Vertical movement of the couch (1) Check of safety circuit for vertical movement <Preparation> Perform inspection after the KGTSM is started up.  The AUTO SLIDE stroke is displayed on the screen of the PC.  The 0 clear time is displayed on the screen of the PC. <Procedure>...
Page 425 Horizontal movement of the couch (1) Check of safety circuit for horizontal movement <Preparation> Perform inspection after the KGTSM is started up.  The AUTO SLIDE stroke is displayed on the screen of the PC.  The 0 clear time is displayed on the screen of the PC. <Procedure>...
Page 426 After checks <Procedure> (1) Turn OFF CP1. (2) Return DSW5 and DSW10 to their original settings. (3) Turn OFF SW1 on the KGTSM PWB. (4) Turn ON CP1. 3.10.8.3 Check of slide runout detection circuit Preparations for check (1) Perform gantry tilting, couch vertical movement, and couch-top sliding to move the gantry, patient couch, and couch top to locations at which the corresponding interlock is not activated.
Page 427 Inspection (1) Set gantry CP1 to ON to supply power. The AUTO SLIDE distance is displayed on the PC monitor screen. The 0-clear time is displayed on the PC monitor screen. (2) Press [ENTER] of the PC keyboard. [GTS] is displayed. (3) Slide free mode Enter the following underlined part.
Page 428 3.10.9 Check of safety circuit on the GMSC PWB (1) Checking the watchdog timer on the GMSC PWB (a) Connect the PC and CN404A on the GMSC PWB using a USB cable to start HyperTerminal. (b) Set DSW4-5 on the GMSC PWB to ON and press SW21 to reset. (c) Enter wdt 100 in the terminal window and press the [Enter] key.
Page 429 3.10.10 Additional data The additional data items described in this section can be used together with raw data to determine the status of the gantry and couch top during image acquisition. 3.10.10.1 List of additional data items Word# Name of data item Contents Extra 1 001 (E0)
Page 430 3.10.10.2 Details of additional data items (1) Tube position (DCA 1CH) The data varies with the viewing rate (scan speed). When the tube is positioned at 120°, 0000 (h) is displayed. For 0.75-second scan, the tube rotates in 0.4° steps until the data are counted up to 0383 (h).
Page 431 (4) Raw Data Error (DCA 4CH) The number of pure raw data errors is displayed. The displayed number indicates the total number of errors that have occurred in ch 1 and ch 2 of the MUDAT transmission path. The same number is displayed for MULTI ERROR on the 7-segment display in the top part of the GCIFM PWB (location 12E, 11E).
Page 432 (11) Couch Speed (DCA 12CH) The data varies with the couch-top speed. The actual couch-top speed is calculated by dividing the coefficient (19200) by the data. (Example) When the data is 9600 (h) = 38400 (d) 19200/(38400 + 2) = 0.4999 mm/s ...
Page 433 LEGAL MANUFACTURER 1385, SHIMOISHIGAMI, OTAWARA-SHI, TOCHIGI-KEN 324-8550, JAPAN...

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