Transferring To Bypass Mode; Setting Eco Mode - Huawei UPS5000-E-12 User Manual

UPS5000-E-(40 kVA-320 kVA)
User Manual
Step 5 After LCD initialization, start the inverter by following
5.1 Powering On and Starting the
----End

5.4 Transferring to Bypass Mode

Before you shut down the inverter, ensure that the bypass is normal. If the bypass is abnormal,
after you shut down the inverter, the UPS supplies no power, and the loads shut down.
Perform
inverter over the LCD or WebUI. After you shut down the inverter, the UPS transfers to
bypass mode.

5.5 Setting ECO Mode

Context






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 10 (2015-09-15)
If no input is available, perform battery cold startup.
Step 1 in section 5.2 Shutting Down and Powering Off the UPS
If you shut down the inverter 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 module takes precedence over the power
module in supplying power to loads. When the bypass module is disconnected, the UPS
switches to the power module. 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 module works
properly.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Step
UPS.
UPS.
Figure 5-19.
5 Operations
3, Step 4, and Step 6 in section
to shut down the
Step 1 in
163