Huawei UPS2000-A-6KTTL User Manual page 28

UPS2000-A-(6 kVA-10 kVA)
User Manual (App)
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Issue 02 (2024-01-30)
Figure 2-3 Normal mode
Battery mode
When the mains is abnormal or disconnected, the DC-DC step-up transformer
boosts the DC power supplied by batteries, which is then supplied to the
inverter. Then the inverter converts the DC power into stable AC power to
supply loads.
Figure 2-4 Battery mode
Bypass mode
The mains supplies power to loads after filtering. When the UPS is
overloaded, overheated, or faulty, it automatically transfers to bypass mode.
In this mode, the backup capability of batteries is unavailable.
Figure 2-5 Bypass mode
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.
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