Transferring To Bypass Mode; Setting Eco Mode - Huawei UPS5000-A-600K-SC User Manual

UPS5000-A-(600 kVA-800 kVA)
User Manual (40 kVA)
Step 5 After LCD initialization, start the inverter on the LCD.
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5.1.4 Transferring to Bypass Mode

Before shutting down the inverter, ensure that the bypass is normal. If the bypass is not
normal, after the inverter is shut down, the UPS supplies no power, and the loads shut down.
Shut down the UPS inverter. Shut down the inverter on the LCD or WebUI, and the UPS
transfers to bypass mode.

5.1.5 Setting ECO Mode

Context
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Procedure
Step 1 Manually shut down the inverter to transfer the UPS to bypass mode.
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 03 (2017-10-16)
If the inverter is shut down when the input voltage or frequency exceeds the specified threshold, the
UPS supplies no power, and the loads shut down.
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 4 ms for typical working
conditions and is 20 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.
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Figure 5-19.
5 Operations
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