List Of Fault Or Alarm Display - Mitsubishi Electric FR-A760 Series Instruction Manual

5.2 List of fault or alarm display

Operation Panel
Indication
E - - - Faults history
HOLD Operation panel lock
to
Er1 to 4 Parameter write error
to
rE1 to 4 Copy operation error
Err. Error
OL Stall prevention (overcurrent)
oL Stall prevention (overvoltage)
RB Regenerative brake prealarm
Electronic thermal relay
TH
function prealarm
PS PU stop
MT Maintenance signal output
CP Parameter copy
Speed limit indication
SL
(Output during speed limit)
FN Fan fault
Overcurrent trip during
E.OC1
acceleration
Overcurrent trip during
E.OC2
constant speed
Overcurrent trip during
E.OC3
deceleration or stop
Regenerative overvoltage
E.OV1
trip during acceleration
Regenerative overvoltage trip
E.OV2
during constant speed
Regenerative overvoltage trip
E.OV3
during deceleration or stop
Inverter overload trip
E.THT
(electronic thermal relay function)
Motor overload trip
E.THM
(electronic thermal relay function)
E.FIN Fin overheat
E.IPF Instantaneous power failure
Brake transistor alarm
E.BE
detection
E.UVT Undervoltage
E.ILF* Input phase loss
E.OLT Stall prevention
Refer
Name
to
385
390
390
391
391
392
392
393
393
392
393
393
393
394
394
394
395
395
395
395
396
396
396
396
397
397
397
397
* If an error occurs when using the FR-PU04, "Fault 14" is displayed on

List of fault or alarm display

Operation Panel
Indication
Output side earth (ground)
E.GF
fault overcurrent
E.LF Output phase loss
External thermal relay
E.OHT
operation
E.PTC* PTC thermistor operation
E.OPT Option fault
E.OP3 Communication option fault
E. 1 to
to
Option fault
E. 3
Parameter storage device
E.PE
fault
E.PUE PU disconnection
E.RET Retry count excess
Parameter storage device
E.PE2*
fault
/
E. 6 /
/
E. 7 / CPU fault
E.CPU
Operation panel power
supply short circuit, RS-485
E.CTE
terminal power supply short
circuit
24VDC power output short
E.P24
circuit
Output current detection
E.CDO*
value exceeded
Inrush current limit circuit
E.IOH*
fault
Communication error
E.SER*
(inverter)
E.AIE* Analog input fault
E.OS Overspeed occurrence
Speed deviation excess
E.OSD
detection
E.ECT Signal loss detection
E.OD Excessive position error
E.MB1
to
to Brake sequence fault
E.MB7
E.EP Encoder phase error
E.USB* USB communication fault
Opposite rotation
E.11
deceleration fault
E.13 Internal circuit fault
the FR-PU04.
Refer
Name
to
397
398
398
398
398
398
399
399
399
399
399
400
400
401
401
402
402
402
400
400
401
401
400
401
402
403
403
389
5