List Of Fault Or Alarm Display - Mitsubishi Electric FR-A720-00030-NA Instruction Manual

5.2 List of fault or alarm display

Operation Panel
Indication
E - - - Faults history
HOLD Operation panel lock
LOCD
Password locked
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 alarm
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
E.OV2
trip during constant speed
Regenerative overvoltage
E.OV3 trip during deceleration or
stop
Inverter overload trip
E.THT (electronic thermal relay
function)
Motor overload trip
E.THM (electronic thermal relay
function)
E.FIN Heatsink overheat
E.IPF Instantaneous power failure
Brake transistor alarm
E.BE
detection
E.UVT Undervoltage
E.ILF* Input phase loss
E.OLT Stall prevention stop
Refer
Name
to
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412
412
412
413
413
414
414
415
415
414
415
415
415
416
416
416
417
417
417
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418
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419
* If a fault occurs when using the FR-PU04, "Fault 14" is displayed on
419
419
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
to
E. 5 to
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 fault
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 fault
E.MB1
to
to Brake sequence fault
E.MB7
E.EP Encoder phase fault
E.USB* USB communication fault
Opposite rotation
E.11
deceleration fault
E.13 Internal circuit fault
the FR-PU04.
....... Specifications differ according to the date assembled. Refer to
page 491 to check the SERIAL number.
Refer
Name
to
419
420
420
*2
420
420
421
421
421
421
422
421
422
422
424
424
424
425
425
422
423
423
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