YASKAWA L1000A Technical Manual page 287

Digital Operator Display
CPF02
Cause
Control circuit is damaged.
Digital Operator Display
CPF03
Cause
There is a connection error.
Drive fails to operate properly due to noise interference.
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.
Power to the control board was lost while writing
parameter settings during Rescue Operation.
Digital Operator Display
CPF07
CPF08
Cause
There is a faulty connection between the terminal board
and control board.
Digital Operator Display
to ,
CPF11 to CPF14,
to
CPF16 to CPF21
<1>
Cause
Hardware is damaged.
Digital Operator Display
CPF22
Cause
Hybrid IC failure on the power board
Digital Operator Display
CPF23
Cause
Hardware is damaged.
Digital Operator Display
CPF24
Cause
Hardware is damaged.
Digital Operator Display
CPF25
Cause
Terminal board is not connected correctly.
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
A/D Conversion Error
An A/D conversion error or control circuit error occurred.
• 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.
Control Board Connection Error
Connection error between the control board and the drive
• 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.
• 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.
EEPROM Memory Data Error
An error in the data saved to EEPROM
• 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.
Reinitialize the drive (A1-03).
Reinitialize the drive (A1-03).
Terminal Board 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.
Control Circuit Error
• 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.
Hybrid IC Failure
• Cycle power to the drive. Refer to Diagnosing and Resetting Faults on page
• 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.
Control Board Connection Error
Connection error between the control board and the drive
• 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.
Drive Unit Signal Fault
The drive capacity cannot be detected correctly (drive capacity is checked when the drive is powered up).
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.
Terminal Board not Connected
Reconnect the terminal board to the connector on the drive, then cycle the power to the drive.
6.3 Fault Detection
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
314.
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
6
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