Mitsubishi Electric FR-F 700 EC, Инструкция по эксплуатации

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Causes and corrective actions
Operation Panel
Indication
E.OPT FR-PU04 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.
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.
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.
Operation Panel
Indication
E.OP1 FR-PU04 Option slot alarm 1
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 FR-PU04 Fault 1
Name
Option alarm
Description
Stops the inverter output if a contact fault or the like of the connector between the inverter and
communication option occurs.
Check point
1. Check that the plug-in option is plugged into the connector securely.
2. Check for excess electrical noises around the inverter.
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.
Operation Panel
Indication
E.PE FR-PU04 Corrupt Memry
Name Parameter storage devide 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.
Operation Panel
Indication
E.PE2 FR-PU04 Fault 14
Name Parameter storage devide alarm (main circuit board)
Description A fault occurred in parameters stored (EEPROM failure)
Check point ——————
Corrective action Please contact your sales representative.
Operation Panel
Indication
E.PUE FR-PU04 PU Leave Out
Name
PU disconnection
Description
This function stops the inverter output if communication between the inverter and PU is suspended,
e.g. the operation panel and 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. This function also stops the inverter output if communication is
broken for the period of time set in
Pr. 122 PU communication check time interval .
Check point
· Check that the FR-DU07 or parameter unit (FR-PU04) is fitted tightly.
· Check the
Pr. 75 setting.
Corrective action
Fit the FR-DU07 or parameter unit (FR-PU04) securely.