List Of Alarm Display - Mitsubishi Electric FR-B-750 to 75K 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)
Regenerative brake pre-
RB
alarm
Electronic thermal relay
TH
function pre-alarm
PS PU stop
MT Maintenance signal output
CP Parameter copy
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*1 Input phase failure
E.OLT Stall prevention
Refer
Name
to
260
266
266
267
267
268
268
269
269
268
269
269
269
270
270
270
270
271
271
271
271
271
272
272
*1
272
*2
272
272
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
*1
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
*1
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
*1
value exceeded
Inrush current limit circuit
E.IOH
*1
alarm
Communication error
E.SER
*1
(inverter)
E.AIE Analog input error
*1
E.EP Encoder phase error
*2
E.MB1
to
to Brake sequence error
E.MB7
E.OS Overspeed occurence
E.ECT Signal loss detection
E.13 Internal circuit error
If an error occurs when using the FR-PU04, "Fault 14" is displayed
on the FR-PU04.
Appears only for the FR-B3 series.

List of alarm display

Refer
Name
to
273
273
273
*2
273
273
273
274
274
274
274
274
275
275
276
276
276
277
277
276
275
275
276
277
265
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