Mitsubishi Electric FR-V500 Series Instruction Manual page 81

Errors (Alarms)
Control Panel
Indication
Name
Description
Check point
Corrective action
Control Panel
Indication
Name
Description
Check point
Corrective action
Control Panel
Indication
Name
Description
Check point
Corrective action
Control Panel
Indication
Name
Description
Check point
Corrective action
Control Panel
Indication
Name
Description
Check point
Corrective action
E.OP1 to
OP3
Option slot alarm (1 to 3 indicate the option slot numbers.)
Stops the inverter output if a functional error (e.g. communication line error of the communication
option or contact fault of the plug-in option other than the communication option) occurs in the plug-
in option fitted to the corresponding slot.
• Check for a wrong option function setting and operation.
• Check that the plug-in option is plugged into the connector securely.
• Check for a break in the communication cable.
• Check that the termination resistor is fitted properly.
• Check that the option card is normal.
• Check the option function setting, etc.
• Connect the plug-in option securely.
E. 1 to
E. 3
Option alarm
Stops the inverter output if a contact fault or the like of the connector between the inverter and
communication option occurs.
Check that the communication option is plugged into the connector securely.
(1 to 3 indicate the option slot numbers.)
• Connect the plug-in option securely.
• Please contact your sales representative.
E.PE
Parameter storage device alarm
Appears when an error occurred in the stored parameters. (E
Check for too many number of parameter write times.
• Please contact your sales representative.
• When performing parameter write frequently for communication purposes, set "1" in Pr. 342 to
enable RAM write. Note that powering off returns the inverter to the status before RAM write.
E.PUE
PU disconnection
• This function stops the inverter output if communication between the inverter and PU is
suspended, e.g. the control panel or parameter unit is disconnected, when "2", "3", "16" or "17"
was set in Pr. 75 "reset selection/disconnected PU detection/PU stop selection".
• This function stops the inverter output if the number of successive communication errors is
greater than the permissible number of retries when the Pr. 121 value is other than "9999" for RS-
485 communication from the PU connector. This function also stops the inverter output if
communication is broken for the period of time set in Pr. 122.
• Check for loose fitting of the FR-DU04-
• Check the Pr. 75 setting.
Fit the FR-DU04- or FR-PU04V securely.
1
E.RET
Retry count excess
If operation cannot be resumed properly within the number of retries set, this function stops the
inverter output.
Find the cause of alarm occurrence.
Eliminate the cause of the error preceding this error indication.
to
FR-PU04V Option slot alarm 1 to 3
to
FR-PU04V Fault 1 to Fault 3
FR-PU04V Corrupt Memry
FR-PU04V PU Leave Out
or FR-PU04V.
1
FR-PU04V Retry No Over
78
2
PROM fault)