Huawei UPS5000-A-600K-SC User Manual page 206

UPS5000-A-(600 kVA-800 kVA)
User Manual (40 kVA)
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Procedure
Step 1 Transfer the UPS to bypass mode by following the steps in section
Bypass
Step 2 Turn on the maintenance bypass switch.
If the maintenance bypass switch is locked, unlock it first.
maintenance bypass switch. After you turn on the maintenance bypass switch, the UPS
transfers to maintenance bypass mode. The maintenance bypass switch is OFF by default. To
turn on the maintenance bypass switch, rotate it to the ON position, as shown in
The Maint. breaker closed alarm is displayed in the alarm list, as shown in
Figure 5-29 Locked maintenance bypass switch
Issue 03 (2017-10-16)
You are advised to install a lock on the maintenance bypass switch. The lock core has a
diameter of 5–10 mm.
Strictly observe the following procedure to transfer the UPS to maintenance bypass mode.
Otherwise, loads may power off.
In maintenance bypass mode, the mains supplies power to the loads directly over the
maintenance bypass. If the mains is abnormal, the loads may power off.
Mode.
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5 Operations
5.1.4 Transferring to
Figure 5-29 shows a locked
Figure
Figure
5-30.
5-31.
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