Starting The Ups In Battery Mode; Transferring To Bypass Mode - Huawei UPS5000-E-30K-FM User Manual

UPS5000-E-(30 kVA-120 kVA)-FM
User Manual
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Step 2 After shutting down the inverter, open the output switch, or external output power distribution
switch in the UPS output PDC.
Step 3 Open the battery string switch. If there are multiple battery strings, open the general switch
between battery strings and the UPS and then the switch for each battery string.
Step 4 Open the external input power distribution switch and the UPS internal switch, perform the
following operations:
1.
2.
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5.3 Starting the UPS in Battery Mode

Procedure
Step 1 Ensure that batteries have been connected properly. Use a multimeter to check that the
absolute voltages of positive and negative battery strings are greater than a certain value
(single battery voltage x number of batteries in the battery string).
Step 2 Open the upstream mains input and bypass input switches, and close the battery circuit
breaker. If there are multiple battery strings, close the circuit breaker for each battery string
and then the general circuit breaker between battery strings and the UPS.
Step 3 Use a multimeter to measure the positive and negative battery string voltages at the UPS
battery input terminal. If the absolute values of the voltages are greater than a certain value
(single battery voltage x number of batteries in the battery string), the batteries are connected
properly.
Step 4 Press and hold down the BATT START button on the bypass module for at least 2 seconds.
The system automatically enters the battery cold start status. The LCD displays the Huawei
logo and an initialization progress bar.
Step 5 After LCD initialization, start the inverter on the LCD.
----End

5.4 Transferring to Bypass Mode

Issue 01 (2020-04-27)
If you need to shut down the inverter and transfer the UPS to bypass mode, check that the UPS has not
generated an alarm and perform "Step 1".
On the WebUI
Choose Monitoring > UPS System > Running Control, and click Inv. OFF.
Open the internal mains input switch, bypass input switch, output switch.
Open the upstream UPS mains and bypass input switches.
 If the inverter needs to shut down to transfer the UPS to bypass mode, check that the UPS has not
generated an alarm and perform
 If you need to shut down the UPS, perform all of the preceding steps.
Copyright © Huawei Technologies Co., Ltd.
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