Vertiv Liebert EXS 80kVA UPS, Руководство пользователя

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Vertiv™ Liebert EXS 80kVA UPS User Manual
5 UPS Operating Instructions
Figure 5-9 Switching the UPS on
217.7V
49.9Hz
219.5V
49.9Hz
充电
553.9V
95%
11.0
分
219.8V
49.9Hz
0%
Confirm
Turn on local INV?
No Yes
In Bypass mode, press the power button, and the LCD prompt a dialogue box shown in Figure 5-10 if the
alarm ‘Bypass unable to trace’ appears. After selecting ‘YES’, the system will automatically transfer to
Normal mode. Select ‘NOT’, the system still works in Bypass mode.
Figure 5-10 Transfer with interruption
217.7V
49.9Hz
219.5V
49.9Hz
充电
553.9V
95%
11.0
分
219.8V
49.9Hz
0%
Confirm
Transfer with interrupt
No Yes
5.3.4. Transfer from Normal Mode to Maintenance Bypass Mode
When the UPS is running in Normal mode, you can use this procedure to transfer the load from inverter
output to maintenance bypass.
CAUTION: Power supply interruption danger of the load
Before performing this procedure, you should check the LCD information first, and make sure
the bypass is normal and synchronizes with the inverter. Failure to do so may result in a brief
interruption in the power supply to the load.
1. In Inverter mode, press the power button to transfer the load to maintenance bypass mode, and the
inverter will be shut down.
2. If the UPS runs in single module mode, open the cabinet front door and remove fixing screws of the
maintenance bypass switch baffle, rotate the baffle leftwards until it is locked in position, then fasten the
fixing screws. At the moment, the LCD displays ‘Maint. Switch Closed’.