Mitsubishi Electric FREQROL-CS80, Manual

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 List of fault indications
If the displayed message does not correspond to any of the following or if you have any other problem, contact your sales representative.
 Error message
• Operation and setting faults are displayed on the operation panel
and parameter unit. The inverter output is not shut off.
 Warning
• The inverter output is not shut off even when a warning is
displayed. However, failure to take appropriate measures will lead
to a fault.
 Fault
• A protective function is activated, the inverter output is shut off,
and the fault (ALM) signal is output.
If faults other than the above appear, contact your sales
representative.
Operation panel indication Name
HOLD Operation panel lock
LOCD Password locked
to
Er1 to
Er4
Parameter write error
Err. Error
Operation panel indication Name
OLC Stall prevention (overcurrent)
OLV Stall prevention (overvoltage)
TH Electronic thermal O/L relay pre-alarm
PS PU stop
UV Undervoltage
IH Inrush current limit resistor overheat
Operation panel indication Name
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.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
E.PE
Parameter storage device fault
E.PE2
E.PUE
PU disconnection
E.RET
Retry count excess
E.CPU
CPU fault
E. 5
E.CDO
Abnormal output current detection
E.IOH
Inrush current limit circuit fault
E.LCI
4 mA input fault
E.E10
Inverter output fault
Protective Functions