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5
TROUBLESHOOTING
List of fault or alarm indications
5.2 List of fault or alarm indications
∗ If a fault occurs when using with the FR-PU04, "Fault 14" is displayed on the
FR-PU04.
Operation Panel
Indication
Name
Refer
to
Page
Error message
E---
Faults history
244
HOLD
Operation panel lock
250
LOCd
Password locked
250
Er1 to 4
Parameter write error
250
Err.
Inverter reset
251
Warnings
OL
Stall prevention
(overcurrent)
251
oL
Stall prevention
(overvoltage)
251
RB
Regenerative brake
prealarm
252
TH
Electronic thermal relay
function prealarm
252
PS
PU stop
252
MT
Maintenance signal output
252
UV
Undervoltage
252
SA
Safety stop
253
Alarm
FN
Fan fault
253
Fault
E.OC1
Overcurrent trip during
acceleration
253
E.OC2
Overcurrent trip during
constant speed
253
E.OC3
Overcurrent trip during
deceleration or stop
254
E.OV1
Regenerative overvoltage
trip during acceleration
254
E.OV2
Regenerative overvoltage
trip during constant speed
254
E.OV3
Regenerative overvoltage
trip during deceleration or
stop
254
E.THT
Inverter overload trip
(electronic thermal relay
function)
255
E.THM
Motor overload trip
(electronic thermal relay
function)
255
E.FIN
Fin overheat
255
to
Fault
E.ILF ∗
Input phase loss
256
E.OLT
Stall prevention
256
E. BE
Brake transistor alarm
detection
256
E.GF
Output side earth (ground)
fault overcurrent at start
256
E.LF
Output phase loss
256
E.OHT
External thermal relay
operation
257
E.PTC∗
PTC thermistor operation
257
E.PE
Parameter storage device
fault
257
E.PUE
PU disconnection
257
E.RET
Retry count excess
257
/
E.5 /
E.CPU
CPU fault
258
E.CDO∗
Output current detection
value exceeded
258
E.IOH ∗
Inrush current limit circuit
fault
258
E.AIE ∗
Analog input fault
258
E.SAF ∗
Safety circuit fault
258
Operation Panel
Indication
Name
Refer
to
Page