Mitsubishi Electric 800 Series Instruction Manual page 63

List of fault displays
6.2
List of fault displays
Operation panel indication
HOLD
LOCD
to
Er1 to Er4
Er8
to
rE1 to rE4
rE6 to rE8
to
Err.
OL
oL
TH
PS
to
MT1 to MT3 Maintenance signal output
CP
CF
SA
UF
ED
LDF
EHR
FN
E.OC1
E.OC2
E.OC3
E.OV1
E.OV2
E.OV3
E.THT
E.THM
E.FIN
E.IPF
E.UVT
E.ILF
E.OLT
24
TROUBLESHOOTING
Name
Operation panel lock
Password locked
Parameter write error
Copy operation error
Error
Stall prevention (overcurrent)
Stall prevention (overvoltage)
Electronic thermal relay function
pre-alarm
PU stop
Parameter copy
Continuous operation during
communication fault
Safety stop
USB host error
Emergency drive in operation
Load fault warning
Ethernet communication fault
Fan alarm
Overcurrent trip during
acceleration
Overcurrent trip during constant speed
Overcurrent trip during
deceleration or stop
Regenerative overvoltage trip
during acceleration
Regenerative overvoltage trip
during constant speed
Regenerative overvoltage trip
during deceleration or stop
Inverter overload trip (electronic
thermal relay function)
Motor overload trip (electronic
thermal relay function)
Heatsink overheat
Instantaneous power failure
Undervoltage
Input phase loss
Stall prevention stop
Operation panel indication
E.GF
E.SOT
E.LUP
E.LDN
E.LF
E.OHT
E.PTC
E.OPT
E.OP1
E.1 to E.3
to
E.PE
E.PUE
E.RET
E.PE2
to
E.5 to E.7
E.CPU
E.CTE
E.P24
E.CDO
E.IOH
E.AIE
E.OS
E.USB
E.13
E.PBT
E.BE
E.SAF
E.LCI
E.PCH
E.PID
E.EHR
to
E.16 to E.20
E- - - -
EV
RD
WR
If faults other than the above appear, contact your sales
representative.
Name
Output side earth (ground) fault
overcurrent
Loss of synchronism detection
Upper limit fault detection
Lower limit fault detection
Output phase loss
External thermal relay operation
PTC thermistor operation
Option fault
Communication option fault
Option fault
Parameter storage device fault
PU disconnection
Retry count excess
Parameter storage device fault
CPU fault
Operation panel power supply
short circuit
24 VDC power fault
Abnormal output current
detection
Inrush current limit circuit fault
Analog input fault
Overspeed occurrence
USB communication fault
Internal circuit fault
Safety circuit fault
4 mA input fault
Pre-charge fault
PID signal fault
Ethernet communication fault
User definition error by the PLC
function
Faults history
24 V external power supply
operation
Backup in progress
Restoration in progress