Mitsubishi Electric FR-E700 Instruction Manual page 544

Causes and corrective actions
Operation panel
indication
Name
Description
Check point
Corrective action
This fault is only available for the frequency inverter FR-E700 SC ENE.
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
7 - 16
E.1
Ethernet board fault
The inverter output is shut off when a contact fault occurs between the inverter and the Ethernet
board. The indication also appears when the initial position of the manufacturer setting switch
on the Ethernet board is changed.
Check that the Ethernet board is installed onto the connector securely.
Check for excessive noise around the inverter.
Check that the initial position of the manufacturer setting switch on the Ethernet board was
not changed.
Connect the Ethernet board securely.
Take measures against noises if there are devices producing excessive electrical noises
around the inverter. If the problem still persists after taking the above measure, contact your
sales representative.
Set the manufacturer setting switch on the Ethernet board back to the initial position.
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 sus-
pended, 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 permissible 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 communica-
tion error" to change). This function also stops the inverter output if communication is broken
within the period of time set in Pr. 122 "PU communication 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.
FR-PU04
Fault 1
FR-PU07
FR-PU04
Corrupt Memry
FR-PU07
FR-PU04 Fault 14
FR-PU07 PR storage alarm
FR-PU04
PU Leave Out
FR-PU07
Troubleshooting