UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
5 Operations
Issue 02 (2017-02-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
231
Figure 5-36
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 transferring the UPS from maintenance bypass mode to normal mode, ensure that the
bypass input and output are normal.
Procedure
Step 1
Open the maintenance bypass switch by performing the following actions according to the
UPS version being used:
For the UPS5000-E-200K-SM, rotate the handle counterclockwise 90 degrees (so that it
points rightwards), as shown in
For the UPS5000-E-200K-FM, pull down the switch, as shown in
For the UPS5000-E-300K-SM/SMT, rotate the handle counterclockwise 90 degrees (so
that it points downwards).
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.