YASKAWA Z1000 CIMR-ZU*A Series User Manual Download Page 208

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HOA Keypad Display

Fault Name

CPF00 or CPF01

Control Circuit Error

Cause

Possible Solution

There is a self-diagnostic error in the control

circuit

• 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.

Connector on the operator is damaged

Replace the operator.

HOA Keypad 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.

HOA Keypad 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

the drive input power side.

• Ensure that other equipment such as switches or relays do not cause noise. Use surge suppressors

if required.

• Separate all communication wiring from drive power lines.

HOA Keypad Display

Fault Name

CPF06

EEPROM Memory Data Error
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 using parameter A1-03.

HOA Keypad Display

Fault Name

CPF07

Terminal Board Connection Error

CPF08

Cause

Possible Solution

There is a faulty connection between the terminal

board and the 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.

HOA Keypad Display

Fault Name

CPF20 or 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.

5.4 Fault Detection

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