List Of Alarm Display - Mitsubishi Electric FR-F740-00023-EC Instruction Manual

List of alarm display

When an alarm (major failures) occurs in the inverter, the protective function is activated bringing the inverter to an
alarm stop and the PU display automatically changes to any of the following error (alarm) indications.
If your fault does not correspond to any of the following errors or if you have any other problem, please contact your
sales representative.
• Retention of alarm output signal ..................When the magnetic contactor (MC) provided on the input side of the inverter is
• Alarm display............................................When the protective function is activated, the operation panel display
• Resetting method............................................When the protective function is activated, the inverter output is kept stopped.
• When the protective function is activated, take the corresponding corrective action, then reset the inverter, and
resume operation.
Not doing so may lead to the inverter fault and damage.

4.1 List of alarm display

Operation Panel
Indication
HOLD Operation panel lock
to
Er1 to 4 Parameter write error
to
rE1 to 4 Copy operation error
Err.
OL
oL
RB
TH
PS
MT
CP
FN
E.OC1
E.OC2
E.OC3
E.OV1
E.OV2
E.OV3
E.THT
E.THM
E.FIN
E.IPF
E.BE
E.UVT Undervoltage
E.ILF*
E.OLT Stall prevention
234
opened at the activation of the protective function, the inverter's control power
will be lost and the alarm output will not be held.
automatically switches to the above indication.
Unless reset, therefore, the inverter cannot restart. (Refer to page 246.)
Name
Error
Stall prevention (overcurrent)
Stall prevention (overvoltage)
Regenerative brake prealarm
Electronic thermal relay
function prealarm
PU stop
Maintenance signal output
Parameter copy
Fan fault
Overcurrent shut-off during
acceleration
Overcurrent shut-off during
constant speed
Overcurrent shut-off during
deceleration or stop
Regenerative overvoltage
shut-off during acceleration
Regenerative overvoltage
shut-off during constant speed
Regenerative overvoltage shut-
off during deceleration or stop
Inverter overload shut-off
(electronic thermal relay function)
Motor overload shut-off
(electronic thermal relay function)
Fin overheat
Instantaneous power failure
Brake transistor alarm
detection/internal circuit error
Input phase failure
Operation Panel
Refer
Indication
to
235
235
E.OHT
E.PTC* PTC thermistor operation
235
E.OPT Option alarm
236
E.OP1 Communication option alarm
237
237
238
E.PUE PU disconnection
238
E.RET Retry count excess
237
E.PE2*
238
/
238
/
E.CPU
239
E.CTE
239
239
239
E.CDO*
240
E.IOH*
240
E.SER*
240
E.AIE* Analog input error
240
* If an error occurs when using the FR-PU04, "Fault 14" is displayed on
240
the FR-PU04.
241
241
241
241
241
242
Name
Output side earth fault
E.GF
overcurrent
E.LF Output phase failure
External thermal relay
operation
*2
E. 1 Option alarm
Parameter storage devide
E.PE
alarm
Parameter storage devide
alarm
E. 6 /
E. 7 / CPU error
Operation panel power
supply short circuit, RS-485
terminal power supply short
circuit
24VDC power output short
E.P24
circuit
Output current detection
value exceeded
Inrush current limit circuit
alarm
Communication error
(inverter)
E.13 Internal circuit error
Refer
to
242
242
242
242
242
243
243
243
243
243
243
244
244
244
244
244
245
245
245