Mitsubishi Electric fr-e700 series, Instruction Manual

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Causes and corrective actions Troubleshooting
7 - 16
햲
This fault is only available for the frequency inverter FR-E700 SC ENE.
Operation panel
indication
E.1
햲
FR-PU04
FR-PU07
Fault 1
Name Ethernet board fault
Description
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 point
앫
Check that the Ethernet board is installed onto the connector securely.
앫
Check for excessive noise around the inverter.
앫
Check that the initial position of the manufacturer setting switch on the Ethernet board was
not changed.
Corrective action
앫
Connect the Ethernet board securely.
앫
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.
앫
Set the manufacturer setting switch on the Ethernet board back to the initial position.
Operation panel
indication
E.PE
FR-PU04
FR-PU07
Corrupt Memry
Name Parameter storage device alarm (control circuit board)
Description Stops the inverter output if fault occurred in the parameter stored. (E²PROM fault)
Check point Check for too many number of parameter write times.
Corrective action
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.
Operation panel
indication
E.PE2
FR-PU04 Fault 14
FR-PU07 PR storage alarm
Name Internal board fault
Description When a combination of control board and main circuit board is wrong, the inverter is tripped.
Check point —
Corrective action Please contact your sales representative.
Operation panel
indication
E.PUE
FR-PU04
FR-PU07
PU Leave Out
Name PU disconnection
Description
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 point
앫
Check that the parameter unit (FR-PU04/FR-PU07) is fitted tightly.
앫
Check the Pr. 75 setting.
Corrective action Connect the parameter unit (FR-PU04/FR-PU07) securely.