YASKAWA FSDrive-MV1000 Series Instructions For Use Manual page 151

Digital Operator Display
CFA
nn VCF_OV
Cause
The bus capacitor circuit has deteriorated or
there was a Power Cell fault.
Digital Operator Display
CPF00, CPF01
CPF20, CPF21
Cause
There is a self-diagnostic error in control circuit.
Connector on the digital operator is damaged.
Digital Operator Display
CPF02
Cause
Control circuit is damaged.
Digital Operator Display
CPF06
Cause
There is an error in EEPROM control circuit.
The power supply was switched off while
parameters were being saved to the drive and the
communication option card was in use.
Digital Operator Display
CPF22
Cause
Hybrid IC failure on the power board
Digital Operator Display
CPF23
Cause
Hardware is damaged.
Digital Operator Display
CPF26 to CPF29
CPF31 to CPF34
CPF40 to CPF43
Cause
Hardware is damaged.
YASKAWA ELECTRIC TOEP C710687 02B FSDrive-MV1000 Instructions
Main Circuit Capacitor Neutral Point Potential Error
The P side or N side voltage in the DC bus has become unbalanced.
• Replace the electrolytic capacitor.
• Check the balance resistance.
• Check the cable.
• Replace the cell control board.
<1>
Control Circuit Error
<1>
• Cycle control power to the drive.
• If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a
Yaskawa representative for instructions on replacing the control board.
Replace the digital operator.
A/D Conversion Error
An A/D conversion error or control circuit error occurred.
• Cycle control power to the drive.
• If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a
Yaskawa representative for instructions on replacing the control board.
EEPROM Memory Data Error
There is an error in the data saved to EEPROM.
• Cycle control power to the drive.
• If the problem continues, replace the control board. For instructions on replacing it, contact
Yaskawa or your nearest sales representative.
Reinitialize the drive (A1-03 = 2220).
Hybrid IC Error
• Cycle control power to the drive.
• If the problem continues, replace the control board. For instructions on replacing it, contact
Yaskawa or your nearest sales representative.
Control Board Connection Error
Connection error between the control board and the Power Cell
• Turn off the power for the main circuit and controls and check the connection between the
control board and the Power Cell.
• If the problem continues, replace either the control board or the entire drive. For instructions
on replacing the control board, contact Yaskawa or your nearest sales representative.
Control Circuit Error
If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a
Yaskawa representative for instructions on replacing the control board.
Fault Name
Possible Solutions
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Possible Solutions
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Possible Solutions
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Possible Solutions
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Possible Solutions
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Possible Solutions
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Possible Solutions
5.4 Fault Detection
5
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