UPS5000-E-(25 kVA-75 kVA)-BF
User Manual
5 Operations
Issue 07 (2019-12-13)
Copyright © Huawei Technologies Co., Ltd.
186
Figure 5-26
Maint. breaker closed alarm
After the UPS transfers to maintenance bypass mode, the
Maint. breaker closed
and
Bypass mode
alarms are displayed on the LCD.
----End
5.8 Transferring from Maintenance Bypass Mode to
Normal Mode
Context
Before you transfer the UPS from maintenance bypass mode to normal mode, ensure that the
bypass input and output are normal.
Procedure
Step 1
Turn off the maintenance bypass switch.
The maintenance bypass switch points to the ground when it is turned on. To turn off the
switch, face the cabinet and turn the handle counterclockwise 90 degrees until it points right
horizontally, as shown in
The
Maint. Breaker closed
alarm disappears from the alarm list. Check whether the UPS
works in bypass mode by viewing the system running status diagram on the LCD or WebUI.