Test Procedure; Cold Start Procedure - MAKELSAN PM Series User Manual

PM SERIES

4.2.2 Test Procedure

CAUTION!
The UPS is operating normally. It may take 60 seconds to boost up the system
and perform self-test completely.
• Switch off the MAINS to simulate utility failure, the rectifier will turn off and the battery should
feed the inverter without interruption. At this time, the LEDs of battery should be turned on.
• Switch on the MAINS to simulate utility recovery, the rectifier will restart automatically after
20 seconds and the inverter will supply to the load. It is suggested to use Dummy loads for
testing. The UPS can be loaded up to its maximum capacity during load test.

4.2.3 Cold Start Procedure

CAUTION!
Follow these procedures when the input AC Utility Failure, but battery is normal
o Switch on the battery switch.
The battery will feed the Auxiliary power board.
o Switch on the Output switch
o Trigger the cold start buttons of the modules respectively as the position 5 of the above
drawing.
When battery normal, rectifier starts operation, 30s later, inverter starts and operates and
battery LED on
CAUTION!
Wait for approximately 30 seconds before you press the black start key
UDD-SD-125/ Release Date: 20.01.2015/Rev No: 0/Rev.
Date
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