Operation manual
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2.
Switch ON battery breaker.
3.
Switch ON Mains input switch (I/P Switch)
If the Rectifier input is within voltage range, the rectifier will start up in 30 seconds then the inverter will start up.
During Rectifier start up, the UPS will remains in Static Bypass mode. (bypass LED will light up)
When complete, it continues on Battery Charging mode and Inverter start-up.
Fig. 3-7 UPS input switch
If all procedure is OK, UPS will finally transfer from Bypass mode (yellow LED off) to Inverter mode. (ONLINE
green LED)
No matter whether the UPS can work normally or any issue is detected, all the status will be shown on the LCD
display.
4.
Verify all your loads are ready and turn ON output breaker.
3.2.2
Test procedure
UPS in fully stable ONLINE working mode and fully charged batteries:
1.
Switch off the mains power to UPS to simulate utility failure, the rectifier will turn off and the battery
should feed energy through the inverter without interruption. At this time, the on battery mode yellow LED
should be turned on and battery will be on discharging mode..
2.
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.
3.2.3
Maintenance bypass
To supply the load via Mains, you may simply active the internal mechanical bypass switch.
When maintenance bypass cover is removed, UPS will transfer to bypass mode automatically.
WARNING
If the UPS is operating normally, It may take about 60 seconds to perform full self-test completely.
WARNING
The loads are not protected by the UPS when the internal mechanical bypass system is active.
Any mains fluctuation, interference, energy loss,... will be applied directly to loads.
