Transferring To Maintenance Bypass Mode; Transferring From Maintenance Bypass Mode To Inverter Mode - Huawei UPS5000-H User Manual

UPS5000-H-(1200 kVA-1600 kVA)
User Manual (100 kVA Power Modules)
Step 2 Choose logs that have been queried from the Log drop-down list box, and click
Export.
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7.8 Transferring to Maintenance Bypass Mode

● You are advised to install a lock on the maintenance bypass switch.
● Strictly observe the following procedure to transfer the UPS to maintenance
● In maintenance bypass mode, the mains supplies power to the loads directly
Step 1 Ensure that the status signal cable of the maintenance bypass switch for external
power distribution is connected to MT/0V. Choose System Info > Settings > Dry
Contact Set and set PDC maintenance breaker [MT] to Enable.
Figure 7-21 Maintenance bypass signal port (MT)
Step 2 Shut down the inverter. Choose Common Functions > Inv. OFF. After the inverter
shuts down, the UPS transfers to bypass mode, and the Bypass mode alarm is
displayed on the LCD.
Step 3 Turn on the maintenance bypass switch for external power distribution. Then, the
Maint. breaker closed and Bypass mode alarms are displayed on the LCD.
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7.9 Transferring from Maintenance Bypass Mode to
Inverter Mode
Before you transfer the UPS from the bypass mode to inverter mode, ensure that
the bypass input is normal.
Issue 05 (2021-10-13)
NO TICE
bypass mode. Otherwise, loads may power off.
over the maintenance bypass. If the mains is abnormal, the loads may power
off.
NO TICE
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