Mitsubishi FR-A740-00023-EC, Инструкция по эксплуатации

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Causes and corrective actions
Operation Panel
Indication
E.OPT
FR-PU04
FR-PU07
Option Fault
Name
Option alarm
Description
Appears when the AC power supply is connected to the terminal R/L1, S/L2, T/L3 accidentally when a
high power factor converter is connected.
Appears when torque command by the plug-in option is selected using
Pr. 804 Torque command source
selection and no plug-in option is mounted.
Appears when the switch for the manufacturer setting of the plug-in option is changed.
Check point
· Check that the AC power supply is not connected to the terminal R/L1, S/L2, T/L3 when a high power
factor converter (FR-HC, MT-HC) or power regeneration common converter (FR-CV) is connected.
· Check that the plug-in option for torque command setting is connected.
Corrective action
· Check the parameter ( Pr. 30 ) setting and wiring.
· The inverter may be damaged if the AC power supply is connected to the terminal R/L1, S/L2, T/L3
when a high power factor converter is connected. Please contact your sales representative.
· Check for connection of the plug-in option. Check the Pr. 804 Torque command source selection setting.
· Return the switch for the manufacturer setting of the plug-in option to the initial status. (Refer to
instruction manual of each option)
Operation Panel
Indication
E.OP3
FR-PU04
FR-PU07
Option slot alarm 3
Name Communication option alarm
Description Stops the inverter output when a communication line error occurs in the communication option.
Check point
· Check for a wrong option function setting and operation.
· Check that the plug-in option is plugged into the connector securely.
· Check for a brake 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.
Operation Panel
Indication
E. 1 to
E. 3
FR-PU04
FR-PU07
Fault 1 to Fault 3
Name
Option alarm
Description
Stops the inverter output if a contact faullt, etc. of the connector between the inverter and plug-in option
occurs or if a communication option is fitted to the connector 1 or 2.
Appears when the switch for the manufacturer setting of the plug-in option is changed.
Check point
1. Check that the plug-in option is plugged into the connector securely.
(1 to 3 indicate the option connector numbers.)
2. Check for excess electrical noises around the inverter.
3. Check that the communication option is not fitted to the connector 1 or 2.
Corrective action
1. Connect the plug-in option securely.
2. 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.
3. Fit the communication option to the connector 3.
4. Return the switch for the manufacturer setting of the plug-in option to the initial status.
(Refer to
instruction manual of each option)
Operation Panel
Indication
E.PE
FR-PU04
FR-PU07
Corrupt Memry
Name Parameter storage device alarm (control circuit board)
Description A fault occurred in parameters stored (EEPROM failure)
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.
to