Mitsubishi Electric FR-E700 Instruction Manual page 463

Troubleshooting
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
FR-E700 EC
E.1
Option fault
Stops the inverter output if a contact fault or the like of the connector between the
inverter and communication option occurs.
Appears when the switch for the manufacturer setting of the plug-in option is changed.
Check that the plug-in option is plugged into the connector securely.
Check for excess electrical noises around the inverter.
Check the switch position for the manufacturer setting of the plug-in option.
Connect the plug-in option securely.
Take measures against noises if there are devices producing excess electrical noises
around the inverter.
If the problem still persists after taking the above measure, please contact your sales
representative or distributor.
Return the switch position for the manufacturer setting of the plug-in option to the initial
status. (Refer to the instruction manual of each option)
E.PE
Parameter storage device alarm (control circuit board)
Stops the inverter output if fault occurred in the parameter stored. (E²PROM fault)
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.PE2
Internal board fault
When a combination of control board and main circuit board is wrong, the inverter is
tripped.
—
Please contact your sales representative.
E.PUE
PU disconnection
This function stops the inverter output if communication between the inverter and PU is
suspended, e.g. the 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 when communication errors occurred consecutively for more than per-
missible number of retries when a value other than "9999" is set in Pr. 121 "Number of PU
communication retries" during the RS-485 communication with the PU connector (use Pr.
502 "Stop mode selection at communication error" to change). This function also stops the
inverter output if communication is broken within the period of time set in Pr. 122 "PU com-
munication check time interval" during the RS-485 communication with the PU connector.
Check that the parameter unit (FR-PU04/FR-PU07) is fitted tightly.
Check the Pr. 75 setting.
Connect the parameter unit (FR-PU04/FR-PU07) securely.
Causes and corrective actions
FR-PU04
FR-PU07
FR-PU04
Corrupt Memry
FR-PU07
FR-PU04 Fault 14
FR-PU07 PR storage alarm
FR-PU04
PU Leave Out
FR-PU07
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