5.4 Fault Detection
YASKAWA ELECTRIC
TOEP C710687 02B FSDrive-MV1000 Instructions
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Digital Operator Display
Fault Name
CFA
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Main Circuit Capacitor Neutral Point Potential Error
The P side or N side voltage in the DC bus has become unbalanced.
Cause
Possible Solutions
The bus capacitor circuit has deteriorated or
there was a Power Cell fault.
• Replace the electrolytic capacitor.
• Check the balance resistance.
• Check the cable.
• Replace the cell control board.
Digital Operator Display
Fault Name
CPF00, CPF01
Control Circuit Error
CPF20, CPF21
Cause
Possible Solutions
There is a self-diagnostic error in control circuit.
• 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.
Connector on the digital operator is damaged.
Replace the digital operator.
Digital Operator Display
Fault Name
CPF02
A/D Conversion Error
An A/D conversion error or control circuit error occurred.
Cause
Possible Solutions
Control circuit is damaged.
• 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.
Digital Operator Display
Fault Name
CPF06
EEPROM Memory Data Error
There is an error in the data saved to EEPROM.
Cause
Possible Solutions
There is an error in EEPROM control circuit.
• 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.
The power supply was switched off while
parameters were being saved to the drive and the
communication option card was in use.
Reinitialize the drive (A1-03 = 2220).
Digital Operator Display
Fault Name
CPF22
Hybrid IC Error
Cause
Possible Solutions
Hybrid IC failure on the power board
• 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.
Digital Operator Display
Fault Name
CPF23
Control Board Connection Error
Connection error between the control board and the Power Cell
Cause
Possible Solutions
Hardware is damaged.
• 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.
Digital Operator Display
Fault Name
CPF26 to CPF29
Control Circuit Error
CPF31 to CPF34
CPF40 to CPF43
Cause
Possible Solutions
Hardware is damaged.
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.
Summary of Contents for FSDrive-MV1000 Series
Page 8: ...8 YASKAWA ELECTRIC TOEP C710687 02B FSDrive MV1000 Instructions...
Page 106: ...3 9 Wiring Check 106 YASKAWA ELECTRIC TOEP C710687 02B FSDrive MV1000 Instructions...
Page 210: ...6 7 Spare Parts 210 YASKAWA ELECTRIC TOEP C710687 02B FSDrive MV1000 Instructions...
Page 222: ...B 1 European Standards 222 YASKAWA ELECTRIC TOEP C710687 02B FSDrive MV1000 Instructions...