User Manual
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Alarm type
LCD display
Possible cause
Remedy
Warning
3F : Para Protect
NOTE : Check the UPS operational
mode (parallel or single) and
the connections. The UPS
may be damaged if the pa-
rallel cable is not securely
connected while the UPS is
in the parallel mode.
Fault
01 : Bus Start Fail
The internal converter failed so that
the DC bus voltage could not be
boosted to the correct level.
Contact the dealer to repair.
Fault
02 : Bus Over
1) DC bus voltage is too high be-
cause of mains input or load
transient current.
2) The internal converter failed.
1) Shut down and restart the system
and observe if the fault reoccurs.
2) Contact the dealer for repair.
Fault
03 : Bus Under
The internal converter failed so that
the DC bus voltage is too low.
Contact the dealer to repair.
Fault
04 : Bus Unbalance 1) The load is abnormal
so that the internal positive and
negative DC bus voltages are
unbalanced.
2) The internal converter failed.
Contact the dealer.
Fault
11 : Inv Start Fail
The internal inverter failed so that
the inverter voltage could not start
up correctly.
Contact the dealer to repair.
Fault
12 : Inv Volt High The internal inverter failed so that
the inverter voltage is too high.
Contact the dealer to repair.
Fault
13 : Inv Volt Low
The internal inverter failed so that
the inverter voltage is too low.
Contact the dealer to repair.
Fault
14 : Output Short
Short circuit occurs on the UPS
output.
Remove the short circuit.