3.3.2 Transfer to Battery Mode in the Event of Mains Failure
In the event of mains failure, the UPS transfers to Battery mode.
when the battery is completely discharged, the UPS automatically
shuts down. When the mains restores, the UPS automatically turns
on and operates in Normal mode. This function is designed for
unattendance. If the UPS is manually shut down in Battery mode, it
can only be turned on to inverter manually when the mains restores.
3.3.3 Transfer to Bypass Mode in the Event of Overtemperature
High ambient temperature and poor ventilation may result in
overtemperature inside UPS. In the event of internal
overtemperature, the UPS transfers to Bypass mode, the fault
indicator shines red, the LCD screen displays “TEMP OVER”, and
the UPS gives audible alarm. In such case, cut off the input AC
mains (by switching off the input air breaker), remove any
substances blocking ventilation, or widen the distance from wall.
After the UPS cools down, supply it with AC mains and turn it on.
3.3.4 Output Short-circuit Protection
In the event of load short-circuit, the UPS stops output, the fault
indicator shines red, the LCD screen displays “OUTPUT SHORT”,
and the UPS gives audible alarm. In such case, disconnect the
concerned load, and cut off the input power of the UPS. 10 minutes
later, the UPS automatically shuts down (or manually shut down the
UPS 10 seconds later by pressing the OFF button). After removing
the short-circuit fault, connect the load back to the UPS, supply the
UPS with AC mains and turn it on.
34 Chapter 3 Operation
E1-20010916-C-1.0
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