Huawei UPS2000-G User Manual page 29

UPS2000-G-(6 kVA–20 kVA)
User Manual (Lead-Acid Battery)
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Issue 23 (2024-03-15)
Battery mode
When the mains is abnormal or disconnected, the DC-DC step-up transformer
boosts the DC power supplied from batteries. Then the inverter converts the
DC power into stable AC power for powering loads.
Bypass mode
The mains supplies power directly to loads. The UPS transfers to bypass mode
when overload, overtemperature, or faults occur. This mode does not provide
battery backup capability.
Economy control operation (ECO) mode
If the bypass voltage and frequency are in the specified range, the UPS
supplies power to loads over the bypass. If the bypass voltage and frequency
are outside the range, the UPS transfers to normal or battery mode. ECO is
short for economy control operation.
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● The 15 kVA/20 kVA UPS supports battery ECO mode in the case of two power sources.
In battery ECO mode, the bypass supplies power to the UPS, and batteries are used as
backup power. If the bypass is abnormal, the UPS transfers to battery mode.
● By default, ECO mode described in this document refers to mains ECO mode.
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