List Of Fault Or Alarm Display - Mitsubishi Electric FR-F720-0.75K to 110K 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
Stall prevention
OL
(overcurrent)
Stall prevention
oL
(overvoltage)
Regenerative brake
RB
prealarm
Electronic thermal relay
TH
function prealarm
PS PU stop
MT Maintenance signal output
CP Parameter copy
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 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/internal circuit fault
E.UVT Undervoltage
E.ILF* Input phase loss
E.OLT Stall prevention
Refer
Name
to
255
260
260
260
261
262
262
263
263
262
263
263
263
264
264
264
265
265
265
265
266
* If an error occurs when using the FR-PU04/FR-PU07, "Fault 14" is
266
266
266
267
267
267

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.OP1 Communication option fault
E. 1 Option fault
Parameter storage device
E.PE
fault
E.PUE PU disconnection
E.RET Retry count excess
Parameter storage device
E.PE2*
fault
E. 5 /
/
E. 6 /
CPU fault
E. 7 /
/
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.PID* PID signal fault
E.13 Internal circuit fault
displayed on the FR-PU04/FR-PU07.
Refer
Name
to
267
267
267
*2
268
268
268
268
268
269
269
269
269
269
270
270
270
270
270
270
271
259
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