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POLARIS 10●15●20●30●40●60●80●100●120●160
TRIPHASE-TRIPHASE
Rev. 04 – 06 December 2016
15
◆
Open the cover of maintenance switch, the UPS turns to bypass mode automatically. The Bypass
LED turno on.
◆
Turn on MAINTANCE breaker;
◆
Switch OFF the MAINS breaker,
◆
Switch OFF OUTPUT breaker;
At this time the bypass source will supply to the load through the MAINTENANCE breaker.
Switch to normal operation (from mechanical bypass)
CAUTION!
Never attempt to switch the UPS back to normal operation until you have verified that there are
no internal UPS faults.
◆
Switch ON the output breaker.
◆
Switch ON the input breaker.
The UPS powers from the static bypass instead of the maintenance bypass, then the bypass LED will
light up.
◆
Switch OFF the maintenance bypass breaker, then the output is supplied by the static bypass of the
UPS.
◆
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. Green LED turn on.
4.2.4 Cold start procedure (start up from battery)
CAUTION!
Follow these procedures when the input AC Utility Failure, but battery is normal
◆
Switch ON the power switch (power will feed to auxiliary power board).
◆
Turn on the Output switch.
◆
Trigger the cold start button as the position 5 of the below drawing.
When battery normal, about 30 sec. later the inverter starts and operates and battery LED on