20
TROUBLESHOOTING
7.2 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
E
rro
r m
es
sa
ge
E---
Faults history
HOLD
Operation panel lock
Er1 to 4
Parameter write error
LOCD
Password locked
Err.
Inverter reset
Wa
rn
in
g
OL
Stall prevention (overcurrent)
oL
Stall prevention (overvoltage)
RB
Regenerative brake pre-alarm
TH
Electronic thermal relay function
pre-alarm
PS
PU stop
MT
Maintenance signal output
UV
Undervoltage
SA
Safety stop
Al
ar
m
FN
Fan alarm
F
aul
t
E.OC1
Overcurrent trip during
acceleration
E.OC2
Overcurrent trip during constant
speed
E.OC3
Overcurrent trip during
deceleration or stop
E.OV1
Regenerative overvoltage trip
during acceleration
E.OV2
Regenerative overvoltage trip
during constant speed
E.OV3
Regenerative overvoltage trip
during deceleration or stop
E.THT
Inverter overload trip (electronic
thermal O/L relay function)
E.THM
Motor overload trip (electronic
thermal O/L relay function)
E.FIN
Heatsink overheat
to
Fa
ul
t
E.ILF
∗
Input phase loss
E.OLT
Stall prevention stop
E. BE
Brake transistor alarm detection
E.GF
Output side earth (ground) fault
overcurrent at start
E.LF
Output phase loss
E.OHT
External thermal relay operation
E.PTC
∗
PTC thermistor operation
E.PE
Parameter storage device fault
E.PUE
PU disconnection
E.RET
Retry count excess
E.5
CPU fault
E.CPU
E.CDO
∗
Output current detection value
exceeded
E.IOH
∗
Inrush current limit circuit fault
E.AIE
∗
Analog input fault
E.SAF
∗
Safety circuit fault
Operation Panel
Indication
Name