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130
Causes and corrective actions
Operation Panel
Indication
E.ILF
FR-PU07 Input phase loss
Name
Input phase loss
Description
Converter trips when one phase of the three phase power input is lost.
Checkpoint
Check for a break in the cable for the three-phase power supply input.
Corrective action
Wire the cables properly.
Repair a break portion in the cable.
Operation Panel
Indication
E.OHT
FR-PU07 OH Fault
Name
External thermal relay operation
Description
If an overheat protection device such as a thermostat activates, the converter operation is stopped.
This function is available when "4" (OH signal) is set to any of Pr. 3 to Pr. 7 (input terminal function selection).
This protective function is not available in the initial status (OH signal is not assigned).
Checkpoint
Check for the overheat of the overheat protection peripheral devices such as a thermostat.
Check that the value "4" (OH signal) is set correctly to any of Pr. 3 to Pr. 7 (input terminal function selection).
Corrective action
Check the wiring.
Even if the thermostat restarts automatically, the converter does not restart unless it is reset.
Operation Panel
Indication
E. 2 FR-PU07 Fault 2
Name
HC2 dedicated board disconnection
Description
Stops the converter operation when contact fault between the converter and the connecting part of the HC2
dedicated board occurs.
Checkpoint
Check that HC2 dedicated board is connected to the connector securely.
Check for excess electrical noises around the converter.
Corrective action
Connect the HC2 dedicated board securely.
Take measures against noises if there are devices producing excess electrical noises around the
converter.
If the problem still persists after taking the above measure, please contact your sales representative.
Operation panel
indication
E. 3
FR-PU07 Fault 3
Name
Option fault
Description
Stops the converter operation if a contact fault or the like of the connector between the converter and
communication option occurs.
Appears when the switch for the manufacturer setting of the plug-in option is changed.
Check point
Check that the plug-in option unit is plugged into the connector securely.
Check for excess electrical noises around the converter.
Check the switch position for the manufacturer setting of the plug-in option.
Corrective action
Connect the plug-in option securely.
Take measures against noises if there are devices producing excess electrical noises around the
converter.
If the problem still persists after taking the above measure, please contact your sales representative.
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)
Operation panel
indication
E.OP3
FR-PU07 Option slot alarm 3
Name
Communication option fault
Description
Stops the converter operation when a communication line fault occurs in the communication option.
Check point
Check for a wrong option function setting and operation.
Check that the plug-in option unit is plugged into the connector securely.
Check for a break in the communication cable.
Check that the terminating resistor is fitted properly.
Corrective action
Check the option function setting, etc.
Connect the plug-in option securely.
Check the connection of communication cable.
Connect the terminating resistor correctly.
HC2.book 130 ページ ２０１２年１１月１９日 月曜日 午前１０時５２分