Transferring To Bypass Mode; Setting Eco Mode - Huawei UPS5000-A-400K-SL User Manual

UPS5000-A-(400 kVA-500 kVA)
User Manual (40 kVA Power Modules)
Step 5 After LCD initialization, start the inverter.
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5.4 Transferring to Bypass Mode

Before you shut down the inverter, ensure that the bypass operates properly. If the bypass
becomes faulty, the system provides no output for loads after you manually shut down the
inverter.
Shut down the inverter over the LCD or WebUI. After the inverter is shut down, the UPS
transfers to bypass mode.

5.5 Setting ECO Mode

Context
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Procedure
Step 1 Manually shut down the inverter to transfer the UPS to bypass mode. For details, see
5.2 Shutting Down and Powering Off the
Step 2 Select a value (± 5%, ± 6%, ± 7%, ± 8%, ± 9%, or ± 10%) from the ECO voltage range drop-
down list box, as shown in
Issue 06 (2020-01-10)
When the bypass input voltage or frequency exceeds the system threshold, the system provides no
output for loads after you shut down the inverter.
The UPS is set to non-ECO mode by default. Set the UPS to ECO mode when energy
saving is required.
When the UPS works in ECO mode, the bypass unit takes precedence over the power
unit in supplying power to loads. When the bypass unit is disconnected, the UPS
switches to the power unit. The switchover time is less than 2 ms for typical working
conditions and is 10 ms under harsh working conditions.
Both a single UPS and the parallel system support the ECO mode for higher efficiency.
To avoid frequent transfer between ECO mode and normal mode, do not set the ECO
mode when the bypass input is unstable or is sensitive to load changes.
ECO mode is not recommended when the load is less than 10%.
Before transferring the UPS to ECO mode, ensure that the bypass unit works properly.
Copyright © Huawei Technologies Co., Ltd.
UPS.
Figure 5-23.
5 Operation Guide
Step 1 in
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