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UPS5000-A-(30 kVA-120 kVA)
User Manual
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Procedure
Step 1 Shut down the inverter to transfer the UPS to bypass mode.
Step 2 Select a value (±5%, ±6%, ±7%, ±8%, ±9%, and ±10%) from the ECO voltage
range drop-down list box. Press
select a voltage range, and press
Figure 5-5 Setting the ECO mode and voltage range
Step 3 Start the UPS inverter.
After the inverter starts, the UPS still works in bypass mode. If the bypass becomes
abnormal, the inverter supplies power immediately. If the inverter has not started,
the inverter cannot supply power immediately when the bypass becomes
abnormal and the UPS may power off.
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Issue 17 (2024-02-21)
In ECO mode, the bypass takes priority over the inverter in supplying power. If
the bypass is disconnected, the UPS transfers to inverter mode. The transfer
time is less than 4 ms in typical working conditions and less than 20 ms in
poor working conditions.
Both a single UPS and the parallel system support the ECO mode for higher
efficiency.
To avoid frequent transfers between ECO mode and normal mode, do not set
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 setting ECO mode, ensure that the bypass is working properly.
Before you set ECO mode, check that the voltage system settings match the
local power supply environment.
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Copyright © Huawei Digital Power Technologies Co., Ltd.
5 Single UPS Commissioning
to select a setting item, press ▲ and ▼ to
to confirm the setting.
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