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1600EP Series Instruction Manual
Status Change Indications
Warning messages will be displayed when an abnormal operating condition occurs. The following chart
shows possible messages.
LCD Message Meaning/Action
The UPS has automatically entered
the bypass mode because it detected an output
current that is larger than the inverter can
normally handle.
Remove excess load equipment to
reduce the output current.
The UPS input frequency is outside of
the ± 1 Hz synchronization frequency tolerance
of the inverter output frequency.
No action is necessary. Unit cannot
switch to bypass mode while the input frequency
is out of tolerance with the output frequency.
The battery level has dropped low
(about 90% or less) during operation. Continued
operation in this mode will deplete battery and
cause output shut down.
Immediately shutdown the load
equipment in an orderly fashion and then press
the STOP key.
A start notice is displayed 5 minutes
before starting the UPS when the start timer is
set by communication, and continues to display
remaining time during countdown.
None required
A stop notice is displayed 5 minutes
before stopping the UPS when the stop timer is
set by communication.
None required.
When the key lock is set or the
timer is set to start/stop the UPS by data
communication, pressing the RUN or STOP key
displays this message.
None required.
AUTO RETRANSFER
TIME TO STOP 10 SEC
AUTO RETRANSFER
BATTERY LOW
TIME TO RUN 4 MIN
KEY LOCK: EN