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Honeywell S7800A1142 Manual
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Honeywell S7800A1142 Manual

Keyboard display module
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7800 SERIES
S7800A1142 Keyboard Display Module

APPLICATION

The S7800A1142 Keyboard Display Module (KDM) provides
current system status along with first-out annunciation and
system diagnosis using a two-row by twenty-column readout.
The KDM provides local or remote annunciation of operation
and fault information, remote reset, report generation, burner
control data and diagnostic information. The KDM is part of
the 7800 SERIES of microprocessor-based burner controls for
gas, oil, coal or combination fuel single burner applications.
The 7800 SERIES is programmed to provide a level of safety,
functional capabilities and features beyond the capacity of
conventional controls.
The S7800A1142 is required to program the Valve Proving
feature of select 7800 Series devices.
Application ........................................................................
Features ...........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Wiring ...............................................................................
Troubleshooting ................................................................ 12
Hold and Fault Message Summary .................................. 16
Appendix A: Display Setup ............................................... 25
Display Setup-CLONE ............................... 25
The S7800A1142 KDM offers the following technical
advancements to the 7800 SERIES devices:
• Compatible with installed Honeywell 7800 SERIES
systems.
• When used with the new 7800 SERIES with Valve Proving
Feature, the KDM allows for programming the Valve
Proving Control feature and timing (Pass Code protected
feature).
• Allows for naming the S7830 Expanded Annunciator
terminals to match your system drawings. (Displayed
message only.)(Pass Code protected feature.)
• A three screen two-row by twenty-column readout set of
"Call Service" (Business Card) alpha/numeric directions
can be displayed instead of the standard lockout display
message. (Pass Code protected feature). This "business
card" can be cloned to other displays to save setup time.
• Enable ModBus Communication feature.
The Business Card (Call Service) and Expanded Annunciator
can be made up using:
• Capital letters (A through Z).
• Lower case letters (a through z).
• Numbers (1 through 0).
• Symbols (!, @, #, $,%, etc.).
• Spanish symbols.
Programming can be done with the S7800 KDM mounted on a
7800 SERIES Relay Module or with a 13 Vdc power source
connected to the KDM through the 203541 5-wire connector.
Since your Business Card (Call Service) S7800A1142 will be
left at the job site, programming your personal three-number
password and personal lockout message can be set up ahead
of time without being connected to a 7800 SERIES device. A
clone function allows you to make multiple Business Cards
from the original display.
Contents
1
Appendix A: Display Setup-Clear All .............................. 27
2
Display Setup-CEA Assign ......................... 29
2
Display Setup-CS ON/OFF ........................ 31
2
Display Setup-CS EDIT .............................. 32
3
Appendix B: Valve Proving System ................................... 34
4
Setup of Valve Proving Function .................. 34
Appendix C: Setup of Post Purge ..................................... 36
Appendix E: ModBus Function ......................................... 38
PRODUCT DATA
Contents
65-0288-1

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Summary of Contents for Honeywell S7800A1142

  • Page 1: Table Of Contents

    KDM through the 203541 5-wire connector. gas, oil, coal or combination fuel single burner applications. Since your Business Card (Call Service) S7800A1142 will be The 7800 SERIES is programmed to provide a level of safety, left at the job site, programming your personal three-number...

  • Page 2: Features

    If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: 1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory). 2. Honeywell Customer Care...

  • Page 3: Installation

    S7810M1003 ModBus Module for the ModBus option. on the product to make sure the product is suitable for B. The S7800A1142 KDM is also used to program the Valve your application. Proving and Post-purge feature of Select RM7800 SERIES 3.

  • Page 4: Wiring

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Mounting KDM on 7800 SERIES Relay Module. 4. Drill the pilot holes for the mounting screws. 5. Cut holes in the door panel for the interlocking ears and 1. Align the two interlocking ears of the KDM with the two the two plug-in connectors.
  • Page 5 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE 4. For Recommended grounding practices, see Table 2. NOTE: A 13 Vdc power supply must be used any time more 5. For KDM: The KDM is powered from a low voltage, than one KDM is used. A maximum of two KDM, Data energy-limited source.
  • Page 6 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Annunciator). When the arrow and two-letter code are displayed, it indicates the second line is showing a selectable S7800 KEYBOARD DISPLAY MODULE message submenu. The second line will display selectable or (MOUNTED ON 7800 SERIES RELAY MODULE) preemptive messages.
  • Page 7 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE MOMENTARY PC/PLC PUSHBUTTON RS-485 SWITCH RM78xx SERIES DEVICE WITH S7800 SERIES 5 OR GREATER DISPLAY. MOMENTARY PUSHBUTTON SWITCH RM78xx SERIES DEVICE WITH S7800 SERIES 5 OR GREATER DISPLAY. MULTI-DROP RS-485 COMMUNICATION BUS. UP TO 31 S7800 SERIES 5 OR GREATER DISPLAYS CAN BE CONNECTED TO A SINGLE BUS WITHOUT AN RS-485 REPEATER.
  • Page 8 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE 1. Down-up arrow push-buttons. See Fig. 10. The down-up arrow push-buttons are used to scroll through the selectable messages. The double-headed arrow ( ), which is located in the lower left position of the second line of the display, represents the down-up push-buttons.
  • Page 9 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE M22873 Fig. 12. BACK push-button function. 4. SAVE function, see Fig. 13, 14, and 15. a. Enables users to identify the selectable 2nd line message they want to view upon power restoration. (See “Total Cycles” instead of “Flame Signal” for example.) The second line selectable message is...

  • Page 10: Opercontrol

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 3. Selectable Messages . Selectable Possible States/ Range Message/Display Description (Terminals) Comments Flame signal strength. 0 - 5.0 Vdc Flame Amp (+ and Flame relay pull-in and drop- Flame Signal - (Com)) out value 1.25 Vdc.
  • Page 11 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 3. Selectable Messages (Continued). Selectable Possible States/ Range Message/Display Description (Terminals) Comments T21 Interrupted/Intermittent = 1 or 0 Indicates if output is on or off, Valv/Start Pilot Valve, First Stage Oil energized or de-energized.

  • Page 12: Troubleshooting

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 4. Expanded Annunciator. Selectable Message (Second Line) Display Value (Second Line) First Line Message Expanded Annunciator↔ Expanded Annunciator (EA not "EA connected)< Current Status (CS:) EA Message< "EA Valve Closure (Valve Close) T5 = 1 or 0<...
  • Page 13 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 5. Keyboard Display Module Sequence and Status Hold Messages . Sequence Status INITIATE mm:ss The Keyboard Display Module (KDM) indicates the burner status, INITIATE, a stabilization period for the relay module to check for any fluctuations in ac line voltage inputs or control inputs on power up or during normal operation.
  • Page 14 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 5. Keyboard Display Module Sequence and Status Hold Messages (Continued). Sequence Status PURGE HOLD: T18 The KDM indicates the burner status and that the Low Fire Switch is not closed. The firing rate motor is (Low Fire Switch) driving to its Low Fire position in preparation for Ignition Trials.
  • Page 15 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 6. Accessing Historical and Diagnostic Selectable Messages. Step Operation Press Display Comments Press $% keys to access Diagnostic STANDBY Use the Down/Up SCROLL keys to access the Information. Diagnostic Info> selectable message. The second line will display Diagnostic Information.

  • Page 16: Hold And Fault Message Summary

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE 4. State 4: In the fourth state, both lines are blanked for NOTE: For further explanation of Lockout Messages, one-half second, then the display sequences to the first Troubleshooting and Checkout, refer to form 65-0229.
  • Page 17 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 7. Hold and Fault Message Summary. (Continued) Fault Code System Failure Recommended Troubleshooting Fault 11 Running Interlock powered at 1. Check wiring to make sure that interlocks are connected *Running ILK On* improper sequence point.
  • Page 18 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 7. Hold and Fault Message Summary. (Continued) Fault Code System Failure Recommended Troubleshooting Fault 19 Flame was lost during MFEP or 1. Inspect the main fuel valve(s) and connection(s). *Main Flame Ign.* the first 10 seconds of the RUN 2.
  • Page 19 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 7. Hold and Fault Message Summary. (Continued) Fault Code System Failure Recommended Troubleshooting Fault 29 Lockout Interlock fault. 1. Check wiring and correct any errors. *Lockout ILK* 2. Inspect the fan; make sure that there is no blockage of the air intake and that it is supplying air.
  • Page 20 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 7. Hold and Fault Message Summary. (Continued) Fault Code System Failure Recommended Troubleshooting Fault 35 Safety relay was off when it 1. Reset and sequence the relay module. If fault repeats, replace *Call Service*...
  • Page 21 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 7. Hold and Fault Message Summary. (Continued) Fault Code System Failure Recommended Troubleshooting Fault 49 The manual open switch was WARNING *Man-Open Sw. On* on when it should be off. Explosion Hazard. Can cause severe injury, death or property damage.
  • Page 22 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 7. Hold and Fault Message Summary. (Continued) Fault Code System Failure Recommended Troubleshooting Fault 56 Block intake fault (Fulton pulse 1. Check wiring and correct any errors. *Block Intake* only). 2. Inspect the Block Intake Switch and make sure it is working properly.
  • Page 23 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 7. Hold and Fault Message Summary. (Continued) Fault Code System Failure Recommended Troubleshooting Fault 72 High Fire Switch closed; Low 1. Check firing rate position switches (usually in Modutrol® *Dynamic HFS* Fire Switch must be open Motor) for proper operation.
  • Page 24 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 7. Hold and Fault Message Summary. (Continued) Fault Code System Failure Recommended Troubleshooting Fault 110 The configuration jumpers differ 1. Inspect the jumper connections. Make sure they match the *Call Service* from stored values.

  • Page 25: Appendix A: Display Setup

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE APPENDIX A Display Setup The S7800A1142 Keyboard Display Module (KDM) requires a MASTER SLAVE password to enter the Display Setup Menu. The Display Setup Menu offers the following functions: — Clone—Allows the current display setup to be copied entirely to another display (Series 3 or greater)—page...
  • Page 26 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Press ENTER by pressing the two ENTER buttons at the same time. The Select/Exit Screen (see Fig. 22) will appear. Choose Select. CHOICES ARE 0-99 Fig. 24. Clone Master screen. Edit: The Slave display will change from Fig. 25 to many On/Off M24013 sweeps with periods of bright characters.

  • Page 27: Appendix A: Display Setup-Clear All

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Display Setup - MB Baud Fig. 37. DISPLAY Setup screen. Fig. 32. MB Baud entered on Select screen. Enter your password if it has been changed from the Default Password. Display Setup MB Baud by pressing Enter. Scroll to MB BAUD screen.
  • Page 28 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE To access the Change Password menu. Press the left three buttons of the KDM for one second, then release. Press the left three buttons of the KDM for one second, then release. The DISPLAY Setup screen (see Fig. 37) will appear. Press ENTER using the two ENTER buttons at the same time.

  • Page 29: Display Setup-Cea Assign

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Repeat the above steps for the remainder of the custom descriptions you wish to create. When you have completed your final message, press ENTER. Fig. 48. CEA Edit/Edit Msg screen. < Clear Use the up/down and left/right arrows to select Msg (message) number you wish to edit.
  • Page 30 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Fig. 56. Select/Exit screen. Fig. 62. Assign screen. Choose Select. Use the left/right arrow to move the cursor left and right. Use the up/down arrows to change the message numbers (See Table 8 for pre-set messages or use your custom description from CEA EDIT.

  • Page 31: Display Setup-Cs On/Off

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Display Setup—CS ON/OFF CS ON/OFF allows the Call Service Message to be as follows: • OFF—No call Service Message displayed, normal 7800 SERIES lockout message displayed. • ON—Customized Call Service Message displayed on 7800 Fig.

  • Page 32: Display Setup-Cs Edit

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Fig. 84. CALL SERVICE screen. Fig. 78. Select/Exit screen. Choose Select. Fig. 85. Blank screen. The blank screen is displayed for two seconds. Fig. 79. DISPLAY Setup/Select CLONE screen. Use the down arrow to scroll through menu choices until CS When done, the display will be: TEST appears.
  • Page 33 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Press ENTER by pressing the two ENTER buttons at the same time. Fig. 95. LOCKOUT screen. Using the left/right arrow will move the cursor left and right. Up Fig. 89. Select/Exit screen. and down arrows will move you through the series of available scripts (See Table 9).

  • Page 34: Appendix B: Valve Proving System

    Valve Proving Test time, and, if it turns off, then a lockout occurs (because the gas pressure has decreased due to a leaky downstream valve). The S7800A1142 display is required to set up this feature. Valve Proving System feature provides a systematic way of Setup of Valve Proving Function...
  • Page 35 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE NOTE: This screen sets up when to do the Valve Proving Test. 8. Use the up/down arrows to select from Never, Before, After, Both, or Split, then press ENTER. Fig. 108. Confirmation Correct screen.

  • Page 36: Appendix C: Setup Of Post Purge

    8. Press Enter when the correct postpurge time is displayed. Setup of Post Purge NOTE: An S7800A1142, Keyboard Display Module (KDM), is required for the setup of the RM78XX Post Purge Timing. Fig. 116. Save Changes screen. When the RM78XX is installed and powered, “STANDBY” will 9.

  • Page 37: Appendix D: Expanded Annunciator Tables

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE APPENDIX D Tables Table 8. EA Assign Messages. EA Assign Messages Terminal Current Message Message Fixed Text Message Changeable Text Valve Close High Water Default 01 Burner Switch LowLow H2O Default 02 Oper Control...

  • Page 38: Appendix E: Modbus Function

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 9. Edit Available Text and Characters. (Continued) Edit Available Text and Characters Õ õ Ö ö Ú ú Ù ù Û û Ü ü Ç ç Ñ ñ Ÿ ÿ APPENDIX E: MODBUS FUNCTION...
  • Page 39 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Device Address and Baud Rate NOTE: In Tables 10, 15 and 18: Line 1 and Line 2 refer to the two lines of text on the S7800 Keyboard Display Mod- Assign each device in the system a unique address by setting the ule.
  • Page 40 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 17. ModBus™ Register Assignments. (Continued) Address Register Read/ (hex) (dec) Parameter Name Write Format Notes 0067 40104 Valve Proving Mode 0 = Valve Proving is not enabled 1 = Enabled before Run 2 = Enabled after Run...
  • Page 41 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Burner Control Type Codes CODE DEVICE DESCRIPTION The burner control type code indicates the exact model R7140M number of the burner control. See Table 19. RM78xx Table 19. Burner Control Type Codes. EC7810A EC7820A...
  • Page 42 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 21. 7800 SERIES Sequence State Codes and Associated register code values. (Continued) Table 21. 7800 SERIES Sequence State Codes String Code Burner and Associated register code values. 7800 SERIES Control String Code Burner...

  • Page 43: Burner Switch

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE 7800 SERIES String Codes Table 21. 7800 SERIES Sequence State Codes and Associated register code values. (Continued) Table 23 contains a listing of all string codes provided by the String Code Burner S7800M. The associated string is not implemented in the...

  • Page 44: High Limit

    7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 22. 7800 SERIES String codes. (Continued) Table 22. 7800 SERIES String codes. (Continued) String Code String String Code String HIGH LIMIT PURGE DELAY HIGH OIL PRESSURE PURGE FAN SW OFF HIGH OIL TEMP...
  • Page 45 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 22. 7800 SERIES String codes. (Continued) Table 22. 7800 SERIES String codes. (Continued) String Code String String Code String Input B T17 = 0 Jumper 3 Clipped) Input B T17 = 1 NOTE: The values that follow are generated when the fault...
  • Page 46 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE 7800 SERIES Fault Codes Table 23. 7800 SERIES Fault Codes. (Continued) Table 23 is a complete list of fault codes that may appear in the Fault Fault fault code register. The Fault String Code register will contain...
  • Page 47 7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE Table 23. 7800 SERIES Fault Codes. (Continued) Table 23. 7800 SERIES Fault Codes. (Continued) Fault Fault Fault Fault Code Fault Message String Code Fault Message String (Reg (NOTE: FAULT n: is not in Code...
  • Page 48 FAULT 21g: BOTH FUELS SELECT Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Registered Trademark © 2005 Honeywell International Inc. 65-0288-1 M.S. Rev. 11-05...

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