Mitsubishi Electronics A800 ユーザーズマニュアル

For details, refer to the FR-A800 Instruction Manual (Detailed).

Er

ro

r me

ss

a

g

e

E----

Faults history

HOLD

Operation panel lock

LOCD

Password locked

to

Er1 to Er4
Er8

Parameter write error

to

to

rE1 to rE4
rE6 to rE8

Copy operation error

Err.

Error

Wa

rn

in

g

OL

Stall prevention (overcurrent)

oL

Stall prevention (overvoltage)

TH

Electronic thermal relay 
function pre-alarm

PS

PU stop

SL

Speed limit indication (output 
during speed limit)

CP

Parameter copy

SA

Safety stop

to

MT1 to MT3

Maintenance timer 1 to 3

UF

USB host error

HP1

Home position return setting 
error

HP2

Home position return 
uncompleted

HP3

Home position return 
parameter setting error

EV

24 V external power supply 
operation

Al

ar

m

FN

Fan alarm

Fa

u

lt

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

Fa

u

lt

E.OLT

Stall prevention stop

E. SOT

Loss of synchronism detection

E.GF

Output side earth (ground) 
fault overcurrent

E.LF

Output phase loss

E.OHT

External thermal relay 
operation

E.PTC

PTC thermistor operation

E.OPT

Option fault

E.OP1

Communication option fault

to

E.16 to E.20

User definition error by the 
PLC function

E.PE

Parameter storage device fault

E.PUE

PU disconnection

E.RET

Retry count excess

E.PE2

Parameter storage device fault

to

E.CPU
E. 5 to E. 7/

CPU fault

E.CTE

Operation panel power supply 
short circuit
RS-485 terminals power 
supply short circuit

E.P24

24 VDC power fault

E.CDO

Abnormal output current 
detection

E.SER

Communication fault (inverter)

E.AIE

Analog input fault

E.USB

USB communication fault

E.SAF

Safety circuit fault

E.PBT
E.13

Internal circuit fault

E.OS

Overspeed occurrence

E.OSD

Speed deviation excess 
detection

E.ECT

Signal loss detection

E.OD

Excessive position fault

to

E.MB1 to 
E.MB7

Brake sequence fault

E.EP

Encoder phase fault

E.LCI

4 mA input fault