Mitsubishi Electronics FR-A701 ユーザーズマニュアル

5.2 List of fault or alarm display

* If an error occurs when using the FR-PU04, "Fault 14" is displayed on

the FR-PU04.

E

rro

r me

ss

a

ge

E - - -

Faults history

HOLD Operation panel lock

LOCd

Password locked

Er1 to 4 Parameter write error

rE1 to 4 Copy operation error

Err.

Error

Wa

rn

in

g

OL

Stall prevention 
(overcurrent)

oL

Stall prevention 
(overvoltage)

TH

Electronic thermal relay 
function prealarm

PS

PU stop

MT

Maintenance signal output

CP

Parameter copy

SL

Speed limit indication
(Output during speed limit)

Alar

m

FN

Fan alarm

Fa

ult

E.OC1

Overcurrent trip during 
acceleration

E.OC2

Overcurrent trip during 
constant speed

E.OC3

Overcurrent trip during 
deceleration or stop

E.OV1

Regenerative overvoltage 
trip during acceleration

E.OV2

Regenerative overvoltage 
trip during constant speed

E.OV3

Regenerative overvoltage 
trip during deceleration or 
stop

E.THT

Inverter overload trip
(electronic thermal relay 
function)

E.THM

Motor overload trip
(electronic thermal relay 
function)

E.FIN

Heatsink overheat

E.IPF

Instantaneous power failure

E.UVT Undervoltage

E.ILF* Input phase loss

E.OLT Stall prevention stop

E.GF

Output side earth (ground) 
fault overcurrent

E.LF

Output phase loss

E.OHT

External thermal relay 
operation

 *2

to

to

Fau

lt

E.PTC* PTC thermistor operation

E.OPT Option fault

E.OP3 Communication option fault

E. 1 to 

E. 3

Option fault 

E.PE

Parameter storage device 
fault

E.PUE PU disconnection

E.RET Retry count excess

E.PE2*

Parameter storage device 
fault

E. 5
E. 6
E. 7

E.CPU

CPU fault

E.CTE

Operation panel power 
supply short circuit, RS-485 
terminal power supply short 
circuit

E.P24

24VDC power output short 
circuit

E.CDO*

Output current detection 
value exceeded

E.IOH*

Inrush current limit circuit 
fault

E.SER*

Communication fault 
(inverter)

E.AIE* Analog input fault

E.OS

Overspeed occurrence

E.OSD

Speed deviation excess 
detection

E.ECT Signal loss detection

E.OD

Excessive position fault

E.MB1 

to 

E.MB7

Brake sequence fault

E.EP

Encoder phase fault

E.USB* USB communication fault

E.4

Converter overcurrent

E.8

Power supply fault

E.10

Converter transistor 
protection thermal operation 
(electronic thermal)

E.11

Opposite rotation 
deceleration fault

E.13

Internal circuit fault

E.15

Converter circuit fault

to

to