PowerWalker VFI ICT IoT Series User Manual page 23

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Operation status
Cause
Standby mode
Online mode
Battery mode
1 beep every 4
seconds
Battery mode
with battery low
1 beep every 1
seconds
High Efficiency
mode
Converter mode
Bypass mode
Battery test
Battery fail
Overload
Fault mode
Description
The UPS is Off without output.
The UPS is operating normally and protecting the
equipment.
A utility failure has occurred, and the UPS is powering
the equipment with battery.
Prepare your equipment for shutdown.
This warning is approximate, and the actual time to
shutdown may vary significantly.
Once the mains are loss or abnormal, the UPS would
transfer to Line mode or Battery mode and the load is
supplied continuously.
The UPS would free run with fixed output frequency
(50Hz or 60Hz).
The load should be derating to 60% in converter mode.
Overload or fault has occurred, or a command has been
received, and the UPS is in Bypass mode.
UPS is executing a battery test
The UPS detects bad battery or battery disconnected
Some unnecessary loads should be cut off to reduce the
load.
Some fatal problems happened.
18

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