23
TROUBLESHOOTING
7.2 List of alarm display
* If an E.ILF, E.PTC, E.PE2, E.CDO, E.IOH or E.AIE fault occurs when using the
FR-PU04, "Fault 14" is displayed on the FR-PU04.
Operation Panel Indication
Meaning
Error messages
E - - -
Faults history
HOLD
Operation panel lock
Er1 to 4 Parameter write error
to
rE1 to
rE4
Copy operation error
Err.
Inverter reset
Wa
rn
in
g
s
OL
Stall Prevention (overcurrent)
oL
Stall prevention (overvoltage)
TH
Electronic thermal relay function
prealarm
PS
PU Stop
MT
Maintenance signal output
CP
Parameter copy
SL
Speed limit indication
(Output during speed limit)
Alarm
FN
Fan alarm
Fault
E.OC1
Overcurrent shut-off during
acceleration
E.OC2
Overcurrent shut-off during constant
speed
E.OC3
Overcurrent shut-off during
deceleration or stop
E.OV1
Regenerative overvoltage shut-off
during acceleration
E.OV2
Regenerative overvoltage shut-off
during constant speed
E.OV3
Regenerative overvoltage shut-off
during deceleration or stop
E.THT
Inverter overload shut-off
(electronic thermal relay function)
E.THM
Motor overload shut-off
(electronic thermal relay function)
E.FIN
Fin overheat
E.IPF
Instantaneous power failure
E.UVT
Undervoltage
E.ILF*
Input phase failure
E.OLT
Stall prevention
E.GF
Output side earth (ground) fault
overcurrent
E.LF
Output phase loss
E.OHT
External thermal relay operation
to
to
Fault
E.PTC*
PTC thermistor operation
E.OPT
Option alarm
E.OP3
Communication option alarm
to
E.1 to
E.3
Option fault
E.PE
Parameter storage device fault
E.PUE
PU disconnection
E.RET
Retry count excess
E.PE2*
Parameter storage device fault
E.6
E.7
E.CPU
CPU error
E.CTE
Operation panel power supply short
circuit, RS-485 terminal power
supply short circuit
E.P24
24V DC power output short circuit
E.CDO*
Output current detection value
exceeded
E.IOH*
Inrush current limit circuit fault
E.SER*
Communication error (inverter)
E.AIE*
Analog input error
E.OS
Overspeed occurence
E.OSD
Speed deviation excess detection
E.ECT
Signal loss detection
E.OD
Excessive position error
to
E.MB1
to
E.MB7
Brake sequence error
E.EP
Encoder phase error
E.4
Converter overcurrent
E.8
Power supply fault
E.10
Converter transistor protection
thermal operation (electronic
thermal)
E.11
Opposite rotation deceleration fault
E.13
Internal circuit error
E.15
Converter circuit fault
Operation Panel Indication
Meaning
