UPS5000-S-300 kVA User Manual
(3P3W, 200 V)
5 Operations
Issue 01 (2020-03-06)
Copyright © Huawei Technologies Co., Ltd.
137
In ECO mode, the bypass takes priority over the inverter in supplying power. If the
bypass is disconnected, the UPS transfers to normal mode. The transfer time is less than
2 ms under typical working conditions and less than 10 ms under poor 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.
Procedure
Step 1
Manually shut down the inverter to transfer the UPS to bypass mode.
Step 2
Set
Working mode
to
ECO
. Select a value from the
ECO voltage range
drop-down list box.
Information indicating that the UPS works in ECO mode is displayed on the LCD.
Figure 5-7
Setting ECO
Step 3
Manually start the inverter.
After the inverter starts, the UPS still works in bypass mode and the inverter is on standby. If
the bypass is not normal, the inverter supplies power immediately. If the inverter is not started,
the UPS may be disconnected.
----End
5.5 Testing Batteries
5.5.1 Shallow Discharge Test
