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MITSUBISHI ELECTRIC
FR-F 740 EC/E1
PROTECTIVE FUNCTIONS
ቢ
If when employing the control panel FR-PU04 one of the errors HOLD, Er1 to 4, rE1 to 4, MT, E.ILF, E.PTC, E.PE2, E.CDO, E.IOH,E.SER, E.AIE, E.13 occurs, then Fault 14 will be displayed.
ባ
When the overload capacity is 150% the limit is 120%.
E.PUE
PU disconnection
A connection error between inverter and control panel occurred during operation.This alarm is only
returned,if parameter 75 is set to “2",”3",“16",or ”17".
Check the connection of control panel.
E.RET
Retry count excess
After activation of a protective function the inverter failed to be restarted automatically within the
number of retries specified in parameter 67.
Remedy the actual cause of the originary
protective function.
E.CPU
CPU error
Communication error with the built-in CPU
Please contact your nearest MITSUBISHI
ELECTRIC representative if the error occurs
repeatedly.
E. 6
CPU error
E. 7
CPU error
E.CTE
Operation panel/RS-485
terminal power supply
short circuit
The operation panel power supply is shorted.
Locate and correct the short.Check the control
panel and the connection cable.
E.P24
24 V DC power supply
short circuit
The 24 V DC power output from the PC terminal is shorted. Locate and correct the short.
E.CdO
ቢ
Output current detection
value exceeded
The max.output current set in Pr.150 has been exceeded. Check the setting of Pr.150,151,166 and 167.
E.IOH
ቢ
Inrush resistance overheat This error occurs when the inrush current limiter overheats.
Reduce the inrush current.Avoid switching op
-
erations during the switch-on phase.
E.SEr
ቢ
Communication error
(inverter)
Communication error at the RS-485 port. Check the wiring.
E.AIE
ቢ
Analog input error
Invalid signal (>30 mA or >7.5 V) at the analog input programmed with the current setting value
function.
Check the setting of Pr.73 and Pr.267.
E.BE
Brake transistor alarm
detection/Internal circuit
error
For the 01800 or more:
Inverter output stop if an alarm occurs in the brake circuit,e.g.damaged brake transistor.
For 01160 or less:
Internal circuit error
Reduce the load inertia.
Check the frequency of using the brake and the
brake transistor.
E.13
ቢ
Internal circuit error Error in the internal circuit of the device.
Please contact your nearest MITSUBISHI
ELECTRIC representative if the error occurs
repeatedly.