20
TROUBLESHOOTING
7.2 List of fault or alarm display
* If an error occurs when using the FR-PU04, "Fault 14" is displayed
on the FR-PU04.
Operation Panel
Indication
Name
E
rr
o
r mes
sage
E---
Faults history
HOLD
Operation panel lock
Er1 to 4 Parameter write error
rE1 to 4 Copy operation error
Err.
Error
Wa
rn
in
g
s
OL
Stall prevention (overcurrent)
oL
Stall prevention (overvoltage)
RB
Regenerative brake prealarm
TH
Electronic thermal relay function
prealarm
PS
PU stop
MT
Maintenance signal output
CP
Parameter copy
Ala
rm
FN
Fan alarm
Fa
u
lt
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 relay function)
E.THM Motor overload trip
(electronic thermal relay function)
E.FIN
Fin overheat
E.IPF
Instantaneous power failure
E.UVT Undervoltage
to
to
F
aul
t
E.ILF*
Input phase loss
E.OLT
Stall prevention
E.GF
Output side ground fault
overcurrent
E.LF
Output phase loss
E.OHT External thermal relay operation
*2
E.PTC* PTC thermistor operation
E.OPT Option fault
E.OP1
Communication option fault
(e.g.communication error)
E. 1
Option fault
(e.g.connection or contact fault)
E.PE
Parameter storage device fault
E.PUE PU disconnection
E.RET Retry count excess
E.PE2* Parameter storage device fault
/
/
/
E. 5 /
E. 6 /
E. 7 /
E.CPU
CPU fault
E.CTE
Operation panel power supply
short circuit, RS-485 terminal
power supply short circuit
E.P24
24VDC power output short circuit
E.CDO*
Output current detection value
exceeded
E.IOH* Inrush current limit circuit fault
E.SER* Communication fault (inverter)
E.AIE* Analog input fault
E.PID* PID signal fault
E.BE
Brake transistor alarm detection/
internal circuit error
E.13
Internal circuit fault
Operation Panel
Indication
Name