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1. Confirm the input/output wires connection and input phase sequence are correct;
switch off the battery breaker and measure the +/- bat voltage of all battery group are
normal.
2. Connect the parallel cable, it should be formed loop connection
3. Switch on the input breaker of unit 1, and access LCD setting interface to setting the
working mode, ID, parallel number, redundant number. The setting interface is showed
as below, require setting the in-series number, capacity of battery. The output voltage
level and Bypass protection range are default setting.
4. Turn off the input breaker of Unit 1, and make sure the UPS is off. Turn on the input
breaker of Unit 2, access the LCD setting interface, setting the parallel working mode,
ID(NO.2), parallel 4 units, redundant number. The other setting is the same as UPS 1
operation.
5. For Unit 3 and Unit 4 UPS, the operation setting is all the same as Unit 1 and 2.
6. Turn on Bypass/input/output breaker of all the paralleled UPS, then confirm all the
setting are correct. Each UPS has their owed different ID.
7. There are only one master in parallel system. The one has a dot behind parallel mode is
the master. You can turn on all the UPS after confirming all the setting are correct.
Parallel system should be commissioning when the stand-alone are all intact.
Take 4 units in parallel for example.
4.5 PARALLEL SYSTEM COMMISSIONING
Summary of Contents for STARK 10 kVA
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