UPS5000-S-600 kVA
User Manual (Three-phase, Three-wire)
5 Operations
Issue 05 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
162
5
Operations
5.1 Powering On and Starting the UPS
5.1.1 Powering On the UPS
Prerequisites
Measure the voltage and frequency of the UPS input switch and upstream input switch.
380 V AC/400 V AC/415 V AC/420 V AC voltage system: 138–485 V AC (line voltage)
480 V AC voltage system: 192–528 V AC (line voltage)
Frequency range: 40–70 Hz.
Context
The following operations are applicable to a single UPS. For parallel systems, contact
Huawei technical support.
Before powering on the UPS, ensure that the UPS has passed all check items in the
section "Installation Verification."
Before powering on the UPS, ensure that all the external switches are OFF.
Procedure
Step 1
Close the external mains and bypass input switches.
After the UPS is powered on, initialization begins. The MDU displays the Huawei logo and
an initialization progress bar.
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5.1.2 Initial Startup