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Switch ON the output breaker.
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Switch ON the input breaker.
The UPS powers from the static bypass instead of the maintenance bypass, then the
bypass LED will light up.
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Switch OFF the maintenance bypass breaker, then the output is supplied by the static
bypass of the UPS.
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Put on the maintenance switch cover.
The rectifier will operate normally after 30 seconds. If the inverter works normally, the
system will be transferred from bypass mode to normal mode.
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Set the Battery Breaker to the “ON” for long run UPS.
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Switch ON the power switch for standard UPS.
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Turn on the Output switch.
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Switch ON the power switch (power will feed to auxiliary power board).
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Trigger the cold start button as the position 5 of the below drawing.
When battery normal, rectifier starts operation, 30s later, inverter starts and operates and
battery LED on
4.2.4 Cold start procedure
CAUTION:
Follow these procedures when the input AC Utility Failure, but
battery is normal
1
2
3
4
5
POWER
Summary of Contents for STARK 10 kVA
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