Page 3
(1-10kVA) UPS IST3 Foreword User Manual Foreword Summaries Thank you for choosing AEC UPS IST3! This document gives a description of the (1-10kVA) UPS IST3. Please save the manual after reading, in order to consult in the future. The figures in this manual are just for reference, for details please see the actual product. Symbol Conventions The manual quotes the safety symbols, these symbols used to prompt users to comply with safety matters during installation, operation and maintenance.
(1-10kVA) UPS IST3 User Manual 1. Safety Description This chapter mainly describes the safety announcements. Prior to performing any work on the device, please read the user manual carefully, follow the operation and installation instructions and observe all danger, warning and safety information, which is to avoid human injury and device damage by irregular operations.
(1-10kVA) UPS IST3 User Manual Only authorized professionals are allowed to open the UPS chassis to avoid electric shock. Otherwise, if it causes UPS failure, it is out of the guarantee range. UPS is a class A product. When it is applied to residential building, additional measures should be taken to prevent harassment.
(1-10kVA) UPS IST3 User Manual Don't put tools or other conductive objects on the battery. It's prohibited to connect the anode of battery with the cathode of battery or connect them reversely, which is to avoid fire or electric shock. ...
Page 9
(1-10kVA) UPS IST3 User Manual temperature inside UPS, which will reduce the working life of inner components and then affect the working life of UPS. The recommended altitude is lower than 1000m. If exceeding 1000m, it needs to decrease the rated power according to GB3859.2-93.
(1-10kVA) UPS IST3 User Manual 2. Overview This chapter mainly describes the features, structure and working principle, etc. 2.1 Product Intro (1-10kVA)UPS are with all high frequency, pure online, double-conversion, intelligent features. They are the perfect power security for file server, enterprise server, center server, micro-computer, concentrator, telecom system, data center and others that require high quality power protection.
(1-10kVA) UPS IST3 User Manual Low mains input voltage Adopt the independent rapid detection technology. When the mains input voltage is 120V, which is the lower limit, the battery still doesn't discharge. Therefore, in the mains mode, all output power gets from the power grid, which is to ensure the battery is still in the 100% energy storage status, reduce the battery discharge times and prolong the working life.
(1-10kVA) UPS IST3 User Manual Appearance of 6kVA/ 10kVA UPS standard model 2.2.1 Operation Panel Operation panel The illustration of operation panel Name Illustration ○ Display the working status and setting of UPS. When UPS is off, press and hold "ON" button for 1s to turn on UPS. ...
Page 13
(1-10kVA) UPS IST3 User Manual Name Illustration button as output voltage, output frequency, input voltage, input frequency, battery voltage, inner temperature, load percentage, fault information, etc. Press and hold "SELECT" button for 5s to enter the set page. Then press "SELECT"...
Page 14
(1-10kVA) UPS IST3 User Manual Icon Illustration Bypass icon ON: UPS works in the bypass mode. Battery icon: four energy bars 1. When the energy bars light on from left to right again and again, it indicates battery is in charge. 2.
(1-10kVA) UPS IST3 User Manual Rear panel of 6kVA/ 10kVA UPS standard model 2.2.3 Intelligent Slot RS485 and dry contact(optional) The pin sequence and pin definition of RS485 and dry contact is as follows. RS485 and dry contact...
(1-10kVA) UPS IST3 User Manual Pin definition of RS485 and dry contact The illustration of dry contact is as below: CN1, CN2, CN3 determine that dry contact output signal is normal open or normal close. In default, dry contact output signal is normal close, that is PIN1 connects with PIN2. If one route signal needs to set to normal open, connect PIN2 with PIN3.
(1-10kVA) UPS IST3 User Manual 2.3 Working Principles When the mains is normal, the input of (1-10kVA)UPS converts into the ±360V steady DC voltage through PFC, which supplies power for DC/AC inverter to output steady 220V AC and charges battery at the same time. When the mains is abnormal, the battery will boost into the ±360V DC voltage for DC/AC inverter through DC/DC.
Page 20
(1-10kVA) UPS IST3 User Manual Bypass mode Battery mode When the mains is abnormal, it will work in the battery mode. Battery mode Fault status UPS faults include: EPO protection, busbar voltage fault, IGBT over-temperature fault, fan fault (including fan blocked, fan damage, etc.), output fault (including output overload protection, output short-circuit, etc.), battery fault (including battery over-voltage protection, battery under-voltage protection, etc.), parallel wire disconnected fault, parameter error, charger fault (including charger over-temperature, charger short-circuit, etc.), bypass fault,...
(1-10kVA) UPS IST3 User Manual Inner power fault Bypass fault 2.3.2 UPS Parameters Setting Press and hold "SELECT" button for 5s to enter the set page. Then press "SELECT" button to transfer the setting information, such as PAR/SGL mode (only available for parallel system), ECO/INV mode or the inverting output voltage that is 208V/220V/230V/240V, and press "ON"...
Page 23
(1-10kVA) UPS IST3 User Manual SGL mode ECO mode "ECO" set page: In the set page, three characters "ECO" flicker. If you confirm the selection, press and hold "ON" button more than 1s to quit the set page, the setting is successful. If you aren't sure the selection, it will quit the set page 20s later automatically.
(1-10kVA) UPS IST3 User Manual 3. Installation This chapter mainly describes installation, including the unpacking and checking, installation preparation, electrical connection, etc. 3.1 Unpacking and Checking 3.1.1 1kVA/ 2kVA/ 3kVA UPS and 6kVA/ 10kVA UPS Long Backup Model Besides 6 kVA/ 10kVA UPS standard model, the package of the (1-10kVA) UPS is carton. Unpacking UPS and conduct the following items: ...
Page 25
(1-10kVA) UPS IST3 User Manual Appearance after unpacking If UPS is OK, dismantle four hexagonal bolts M8×20 (two pieces on the left and right side respectively) between the anchor frame and anchor support plate. Dismantle the hexagonal bolts Move UPS to floor and fasten it. ...
(1-10kVA) UPS IST3 User Manual Install UPS in the installation position 3.4 Installation Preparation 3.4.1 Input Breaker Selection Add a breaker (It's recommended that the breaker is with backfeed protection and bipolar disconnection function) or a power distribution box in the input wire of UPS, which matches with the power of UPS, to isolate the mains.
(1-10kVA) UPS IST3 User Manual 3.4.2 Selection of the Cross-sectional Area of Wire For the selection of the cross-sectional area of AC input wire, AC output wire and battery wire of (1-10kVA) UPS, please refer to the following table for the corresponding recommended value and choose upwards. The recommended cross-sectional area of wire 1kVA UPS 2kVA UPS...
(1-10kVA) UPS IST3 User Manual 3.5.1 1kVA UPS In the 1kVA UPS, the input and output adopt sockets. When using it, please connect one end of the input power wire with input socket and then connect the other end of the input power wire with mains socket. Besides, connect the load power wire with the output socket.
(1-10kVA) UPS IST3 User Manual 3.5.2 2kVA/ 3kVA UPS In the 2kVA/ 3kVA UPS, the input and output adopt sockets. When using it, please connect one end of the input power wire with input socket and then connect the other end of the input power wire with mains socket.
(1-10kVA) UPS IST3 User Manual Wiring diagram of 2kVA/ 3kVA UPS 2 3.5.3 6kVA/ 10kVA UPS 6kVA/ 10kVA UPS (Single model) In the 6kVA/ 10kVA UPS, the input, output and battery adopt the terminal bar. The wiring for the 6kVA/ 10kVA UPS long backup model and the wiring for the 6kVA/ 10kVA UPS standard model are shown in the following images.
Page 31
(1-10kVA) UPS IST3 User Manual Wiring diagram of 6kVA/ 10kVA UPS long backup model Wiring diagram of 6kVA/ 10kVA UPS standard model 6kVA/ 10kVA UPS (Parallel model) Install the battery and UPS of each UPS respectively according to the above description. Connect the AC output of each UPS with the output distribution box.
(1-10kVA) UPS IST3 User Manual Wiring diagram of 6kVA/ 10kVA UPS parallel system Connect the equipped parallel wires with parallel port in the rear panel of each UPS in the parallel system. 1. The wiring method and phase sequence of the input of each UPS in the parallel system should be the same.
Page 33
(1-10kVA) UPS IST3 User Manual Install optional intelligent slot and fix it. Connect communication cable.
(1-10kVA) UPS IST3 User Manual 4. Operation and Maintenance This chapter mainly describes the operation process, operation method, daily maintenance and troubleshooting, etc. 4.1 Check Before Startup Check if the wire connection is firm and the color of AC wires is in accordance with the specification.
(1-10kVA) UPS IST3 User Manual 4.4 Parallel System Operation 4.4.1 Start Parallel System Don't start loads until parallel system have started completely. Start the parallel system following the procedures as below: After installing parallel system correctly, start each UPS in the parallel system according to 04.2 Startup Operation successively.
(1-10kVA) UPS IST3 User Manual 4.4.3 Remove Faulty UPS from Parallel System When one UPS failure, it will remove from parallel system automatically with sound & light alarm. Now, perform the operations shown in 0 to remove the faulty UPS from parallel system completely to achieve online hot maintenance or replacement.
(1-10kVA) UPS IST3 User Manual 4.6 Battery Maintenance The working life of battery is based on environment temperature and discharge times. Using battery in the high temperature for a long time or discharging battery deeply will reduce the working life of battery. ...
Page 38
(1-10kVA) UPS IST3 User Manual Fault phenomenon Possible reason intermittently. beyond the allowable input range of UPS; Check if the over-current protector in the rear panel is sprung. If yes, press the over-current protector switch. After finishing installing UPS, Output short circuit or wiring for three phase of output connecting with power will fuse error.
Page 39
(1-10kVA) UPS IST3 User Manual Fault phenomenon Possible reason protection soon. Battery wire doesn't connect well or the terminals are with poor contact. When the load is PC, everything The grounding is unreliable for the floating voltage works normally. When power between the neutral wire and the grounding wire is failure, UPS works normally, but too high.
Page 40
(1-10kVA) UPS IST3 User Manual Fault symbol Buzzer status Meaning SGL mode) is different. Parallel wire parallel system Long beep disconnected. Power failure. If it is abnormal, repair it in PWR Long beep time. Charger over-temperature protection(Please check if the cooling fan Rapid beep (Alarm in the charging board failure);...
(1-10kVA) UPS IST3 User Manual 5. Package, Transportation, Storage 5.1 Package The package of product is carton. When packing, pay attention to the placing direction requirements. One side of carton, it should print warning icons, including keep dry, handle with care, up, stacking layer limit, etc. The other side of carton, it should print the device model, etc.