Mitsubishi Electric 800 Series Manual page 90

List of fault displays
6.2
List of fault displays
Operation panel indication
HOLD
LOCD
to
Er1 to Er4
Er8
to
rE1 to rE8
Err.
OL
oL
RB
TH
PS
to
MT1 to MT3 Maintenance signal output
CP
SL
CF
SA
UF
HP1
HP2
HP3
LDF
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
E.GF
E. SOT
E.LUP
E.LDN
E.LF
28
TROUBLESHOOTING
Name
Operation panel lock
Password locked
Parameter write error
Copy operation error
Error
Stall prevention (overcurrent)
Stall prevention (overvoltage)
Regenerative brake pre-alarm
Electronic thermal relay function
pre-alarm
PU stop
Parameter copy
Speed limit indication
Continuous operation during
communication fault
Safety stop
USB host error
Home position return setting error
Home position return uncompleted
Home position return parameter
setting error
Load fault warning
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)
Heat sink overheat
Instantaneous power failure
Undervoltage
Input phase loss
Stall prevention stop
Output side earth (ground) fault
overcurrent
Loss of synchronism detection
Upper limit fault detection
Lower limit fault detection
Output phase loss
Operation panel indication
E.OHT
E.PTC
E.OPT
to E.OP1 to
E.OP3
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.SER
E.AIE
E.OS
E.OSD
E.ECT
E.OD
E.MB1 to
to
E.MB7
E.EP
E.MP
E.EF
E. BE
E. USB
E.11
E.13
E.PBT
E.SAF
E.LCI
E.PCH
E.PID
to
E.16 to E.20
E- - - -
E.0
EV
RD
WR
If faults other than the above appear, contact your sales
representative.
Name
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/RS-485 terminals
power supply short circuit
24 VDC power fault
Abnormal output current detection
Inrush current limit circuit fault
Communication fault (inverter)
Analog input fault
Overspeed occurrence
Speed deviation excess detection
Signal loss detection
Excessive position fault
Brake sequence fault
Encoder phase fault
Magnetic pole position unknown
External fault during output
operation
Brake transistor alarm detection
USB communication fault
Opposite rotation deceleration
fault
Internal circuit fault
Safety circuit fault
4 mA input fault
Pre-charge fault
PID signal fault
User definition error by the PLC
function
Fault history
No fault history
24 V external power supply
operation
Backup in progress
Restoration in progress