Mitsubishi Electric 800 Series Instruction Manual page 21

6.2
List of fault displays
Abbreviation
LOCD Password locked
Er1 to Er4
Parameter write error
Er8
rE1 to rE8 Copy operation error
Err. RES signal ON or communication circuit fault
OL Stall prevention (overcurrent)
oL Stall prevention (overvoltage)
TH Electronic thermal relay function pre-alarm
PS PU stop
MT1 to MT3 Maintenance signal output
CP Parameter copy
Continuous operation during communication
CF
fault
SA SA
UF USB host error
ED Emergency drive in operation
LDF Load fault warning
FN Fan alarm
E.OC1 Overcurrent trip during acceleration
E.OC2 Overcurrent trip during constant speed
E.OC3 Overcurrent trip during deceleration or stop
Regenerative overvoltage trip during
E.OV1
acceleration
Regenerative overvoltage trip during constant
E.OV2
speed
Regenerative overvoltage trip during
E.OV3
deceleration or stop
Inverter overload trip (electronic thermal relay
E.THT
function)
Motor overload trip (electronic thermal relay
E.THM
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.SOT Loss of synchronism detection
E.LUP Upper limit fault detection
E.LDN Lower limit fault detection
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
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 to E.7
CPU fault
E.CPU
Operation panel power supply short circuit/
E.CTE
RS-485 terminals power supply short circuit
E.P24 24 VDC power fault
E.CDO Abnormal output current detection
E.IOH Inrush current limit circuit fault
E.SER Communication fault (inverter)
E.AIE Analog input fault
E.OS Overspeed occurrence
E.USB USB communication fault
Name
Abbreviation
E.13
E.PBT Internal circuit fault
E.BE
E.SAF Safety circuit fault
E.LCI 4 mA input fault
E.PCH Pre-charge fault
E.PID PID signal fault
E.16 to E.20 User definition error by the PLC function
E.0 No fault history
RD Backup in progress
WR Restoration in progress
If faults other than the above appear, contact your sales
representative.
List of fault displays
Name
TROUBLESHOOTING
21