-29-
Warning
This procedure results in mains voltage being applied to the UPS output terminals. If any load
equipment is connected to the UPS output terminals please check with the load user that it is safe to
apply power. If the load is not ready to receive power then ensure that the output switch of external
distribution cabinet is opened.
Warning
Please confirm that UPS output rotating switch point to UPS, with anti-misoperation stop plate for
rotating switch is fixed well.
1. Close UPS bypass input switch and input switch in turns
The LCD starts up at this time. The Rectifier indicator flashes during the startup of rectifier. The
rectifier enters normal operation state, and after about 30s, the rectifier indicator goes steady green. After
initialization, the bypass static switch closes. The UPS Mimic LEDs will indicate as shown in table 5-1:
Table 5-1 Indicator status
Warning
The bypass input air switch must be opened firstly and then the input air switch is opened, otherwise,
the rectifier can not be started and the system can not control the power.
The inverter starts up at this time, the inverter indicator flashes. After the rectifier enters normal
operation state, UPS power supply will transfer from bypass to inverter, then the bypass indicator turns
off, and load indicator lights. The status of indicators is shown in table 5-2
Table 5-2 Indicator Status
Battery indicator Red
Inverter indicator Green
If your UPS is with build-in battery type, please close internal battery DC switch. Battery indicator
turns off, a few minutes later, the battery will be charged by UPS which will enter normal mode operation.
The indicator status is shown in table 5-3.
If your UPS is without build-in battery type, please close external battery DC switch.
Warning
Please confirm battery connection right before closing external battery switch.
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