List Of Alarm Display - Mitsubishi Electric FR-A720-0.4K Instruction Manual

5.2 List of alarm display

Operation Panel
Indication
E - - - Alarm 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 shut-off during
E.OC1
acceleration
Overcurrent shut-off during
E.OC2
constant speed
Overcurrent shut-off during
E.OC3
deceleration or stop
Regenerative overvoltage
E.OV1
shut-off during acceleration
Regenerative overvoltage
E.OV2
shut-off during constant speed
Regenerative overvoltage shut-
E.OV3
off during deceleration or stop
Inverter overload shut-off
E.THT
(electronic thermal relay function)
Motor overload shut-off
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 failure
E.OLT Stall prevention
Refer
Name
to
383
388
388
389
389
390
390
391
391
390
391
391
391
391
392
392
392
393
393
393
393
393
394
394
394
394
394
395
* If an error occurs when using the FR-PU04, "Fault 14" is displayed on
Operation Panel
Indication
Output side earth (ground)
E.GF
fault overcurrent
E.LF Output phase failure
External thermal relay
E.OHT
operation
E.PTC* PTC thermistor operation
E.OPT Option alarm
E.OP3 Communication option alarm
E. 1 to
to
Option alarm
E. 3
Parameter storage device
E.PE
alarm
E.PUE PU disconnection
E.RET Retry count excess
Parameter storage device
E.PE2*
alarm
/
E. 6 /
/
E. 7 / CPU error
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*
alarm
Communication error
E.SER*
(inverter)
E.AIE* Analog input error
E.OS Overspeed occurence
Speed deviation excess
E.OSD
detection
E.ECT Signal loss detection
E.OD Excessive position error
E.MB1
to
to Brake sequence error
E.MB7
E.EP Encoder phase error
E.USB* USB communication error
Opposite rotation
E.11
deceleration error
E.13 Internal circuit error
the FR-PU04.

List of alarm display

Refer
Name
to
395
395
395
*2
395
396
396
396
396
397
397
397
397
397
399
399
399
399
399
398
398
398
398
397
398
399
400
400
387
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