UDD-SD-116/ Release Date: 31.12.2014/Rev No: 1/Rev. Date: 27.04.2015 19
General operation of parallel system, please refer to the operation instruction of single UPS.
Before starting the system, need to set up different ID for each UPS, specific settings please refer
to the instruction of ID setting which is given in single UPS panel function setting.
＞Turn on the parallel system
● Start the system with mains power: After inputting the mains power，turn on any one UPS of
system, others will start by themself at same time. All UPS will enter into Line mode.
●Start the system without mains power: Make sure the battery pack is connected well and the
breaker is in “ON” position. There are two ways to start the UPS parallel system without utility
power supply:
A: Press the key on each UPS, make each LCD of each UPS light up, then turn on any one
UPS of system, others will start by themself at same time. All UPS will enter into BAT mode.
B: Turn on UPS one by one.
＞Turn off the parallel system
Hold on the OFF KEY of any one UPS of system for more than 4 seconds, it would turn off the
whole parallel system. Hold on the OFF KEY of any one UPS of system for more than 1
second(less than 4 seconds), it would turn off single UPS you choose, of course if you need to
turn on it again or turn on any other single UPS of the system, just press ON KEY of that UPS to
start it.
＞Parallel system maintenance
●Parallel system maintenance please follow the maintenance of single UPS.
●If one UPS of parallel system is malfunctioning, first of all, turn off the malfunctioning UPS, then
cut off the input power to the faulty UPS and disconnect the output of faulty UPS to the parallel
system, make sure that there is no electrical connection with malfunctioning UPS, after all of
those, it’s safe to do operation.
3.5 External Battery Connection Procedure for Long Back up Type
For different UPS type, users are instructed to configure different battery voltage as below
sheet. More or less units are forbidden, or else something abnormal or faulty will appear.
Type Battery Quantity (unit) Battery Voltage (volt)
1KVA 2/3 24/36
1.5KVA 4 48
2KVA 4/6 48/72
3KVA 6/8 72/96
6KVA 16 192
10KVA 16 192
One end of battery cable is for UPS terminals while the other end with triple cables is for
battery terminals. Correct installation procedure is highly vital or else probable electric
shock will arise. Users are strictly required to follow the below procedure.
Connect battery in correct way and make sure the total battery voltage is available for UPS.
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