Yaskawa iQpump1000 AC Drive Quick Start - Manual (Page 243)

HOA Keypad Display Fault Name
CPF07 or
CPF08
Terminal Board Connection Error
Cause Possible Solution
There is a faulty connection between the
terminal board and the control board
• Turn off the power and reconnect the terminal board.
• 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.
HOA Keypad Display Fault Name
CPF22 Hybrid IC Failure
Cause Possible Solution
Hybrid IC failure on the power board
• Cycle power to the drive.
• If the problem continues, replace the power board or the entire drive. Contact Yaskawa or a Yaskawa
representative for instructions on replacing the power board.
HOA Keypad Display Fault Name
CPF23
Control Board Connection Error
Connection error between the control board and the drive
Cause Possible Solution
Hardware is damaged
• 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
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.
HOA Keypad 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.
HOA Keypad Display Fault Name
CPF26 to CPF35
CPF40 to CPF43
Control Circuit Error
CPU error
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.
HOA Keypad Display Fault Name
E5
SI-T3 Watchdog Timer Error
The watchdog timed out.
Cause Possible Solution
Data has not been received from the PLC Execute DISCONNECT or ALM_CLR, then issue a CONNECT command or SYNC_SET command and
proceed to phase 3. Refer to the SI-T3 Option Technical Manual for more details on troubleshooting.
5.2 Fault Detection
YASKAWA TOEP YAIP1W 01B YASKAWA AC Drive - iQpump1000 Quick Start Guide 243
5
Troubleshooting