YASKAWA L1000A - Page 287

6.3 Fault Detection
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual 287
Troubleshooting
6
Digital Operator Display Fault Name
CPF02
A/D Conversion Error
An A/D conversion error or control circuit error occurred.
Cause Possible Solution
Control circuit is damaged.
• Cycle 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
CPF03
Control Board Connection Error
Connection error between the control board and the drive
Cause Possible Solution
There is a connection error.
• Turn off the power and check the connection between the control board and 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.
Drive fails to operate properly due to noise interference.
• Check the various options available to minimize the effects of noise.
• Counteract noise in the control circuit, main circuit, and ground wiring.
• Use only recommended cables or other shielded line. Ground the shield on the controller side or on the drive input power side.
• Ensure that other equipment such as switches or relays do not cause noise and use surge absorbers if required.
• Separate all communication wiring from drive power lines. Install an EMC noise filter to the drive power supply input.
Digital Operator Display Fault Name
CPF06
EEPROM Memory Data Error
An error in the data saved to EEPROM
Cause Possible Solution
There is an error in EEPROM control circuit.
• Turn off the power and check the connection between the control board and 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.
The power supply was switched off while parameters
were being saved to the drive.
Reinitialize the drive (A1-03).
Power to the control board was lost while writing
parameter settings during Rescue Operation.
Reinitialize the drive (A1-03).
Digital Operator Display Fault Name
CPF07
Terminal Board Connection Error
CPF08
Cause Possible Solution
There is a faulty connection between the terminal board
and control board.
• Turn off the power and check the connection between the control board and 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
to ,
to
<1>
CPF11 to CPF14,
CPF16 to CPF21
Control Circuit Error
Cause Possible Solution
Hardware is damaged.
• Cycle 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
CPF22
Hybrid IC Failure
Cause Possible Solution
Hybrid IC failure on the power board
• Cycle power to the drive. Refer to Diagnosing and Resetting Faults on page 314.
• 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
CPF23
Control Board Connection Error
Connection error between the control board and the drive
Cause Possible Solution
Hardware is damaged.
• Turn the power off and check the connection between the control board and 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
CPF24
Drive Unit Signal Fault
The drive capacity cannot be detected correctly (drive capacity is checked when the drive is powered up).
Cause Possible Solution
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.
Digital Operator Display Fault Name
CPF25
Terminal Board not Connected
Cause Possible Solution
Terminal board is not connected correctly. Reconnect the terminal board to the connector on the drive, then cycle the power to the drive.
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