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List of fault or alarm display
5
PROTECTIVE FUNCTIONS
5.2 List of fault or alarm display
* If a fault occurs when using the FR-PU04, "Fault 14" is displayed on
the FR-PU04.
....... Specifications differ according to the date assembled. Refer to
page 484 to check the SERIAL number.
Operation Panel
Indication
Name
Refer
to
Error message
E - - - Faults history 399
HOLD Operation panel lock 404
LOCD
Password locked 404
Er1 to 4
Parameter write error 404
rE1 to 4
Copy operation error 405
Err. Error 405
Warning
OL Stall prevention (overcurrent) 406
oL Stall prevention (overvoltage) 406
RB
Regenerative brake pre-
alarm
407
TH
Electronic thermal relay
function pre-alarm
407
PS PU stop 406
MT Maintenance signal output 407
CP Parameter copy 407
SL
Speed limit indication
(Output during speed limit)
407
Alarm
FN Fan alarm 408
Fault
E.OC1
Overcurrent trip during
acceleration
408
E.OC2
Overcurrent trip during
constant speed
408
E.OC3
Overcurrent trip during
deceleration or stop
409
E.OV1
Regenerative overvoltage
trip during acceleration
409
E.OV2
Regenerative overvoltage
trip during constant speed
409
E.OV3
Regenerative overvoltage
trip during deceleration or
stop
409
E.THT
Inverter overload trip
(electronic thermal relay
function)
410
E.THM
Motor overload trip
(electronic thermal relay
function)
410
E.FIN Heatsink overheat 410
E.IPF Instantaneous power failure 410
E.BE
Brake transistor alarm
detection
411
E.UVT Undervoltage 411
E.ILF* Input phase loss 411
E.OLT Stall prevention stop 411
to
to
Fault
E.GF
Output side earth (ground)
fault overcurrent
411
E.LF Output phase loss 412
E.OHT
External thermal relay
operation
*2
412
E.PTC*
PTC thermistor operation 412
E.OPT Option fault 412
E.OP3 Communication option fault 413
E. 1 to
E. 3
Option fault 413
E.PE
Parameter storage device
fault
413
E.PUE PU disconnection 413
E.RET Retry count excess 414
E.PE2*
Parameter storage device
fault
413
to
E. 5 to
E. 7
E.CPU
CPU fault 414
E.CTE
Operation panel power
supply short circuit, RS-485
terminal power supply short
circuit
414
E.P24
24VDC power output short
circuit
416
E.CDO*
Output current detection
value exceeded
416
E.IOH*
Inrush current limit circuit
fault
416
E.SER*
Communication fault
(inverter)
416
E.AIE* Analog input fault 416
E.OS Overspeed occurrence 414
E.OSD
Speed deviation excess
detection
415
E.ECT Signal loss detection 415
E.OD Excessive position fault 415
E.MB1
to
E.MB7
Brake sequence fault 414
E.EP Encoder phase fault 415
E.USB* USB communication fault 416
E.11
Opposite rotation
deceleration fault
417
E.13 Internal circuit fault 417
Operation Panel
Indication
Name
Refer
to
to
to