CPF25
Terminal Board Not Connected
Yaskawa · Drive Fault Codes
What does CPF25 mean?
The drive has detected that a required terminal board is not physically connected or properly recognized. This prevents the use of external control and feedback signals, making external control of the drive impossible.
Common Causes
- The terminal board is physically disconnected from the main drive unit's designated slot
- Improper seating of the terminal board's connectors, leading to poor electrical contact
- Damage to the terminal board or its communication interface preventing detection.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Power down the drive and verify that the terminal board is correctly and firmly seated in its designated slot.
- 2
Inspect the connectors on both the drive and the terminal board for damage or bent pins.
- 3
Ensure any latching mechanisms for the terminal board are securely engaged to prevent loosening.
Verified technical data. Last updated: March 2026
Related Faults
Source: Yaskawa Drive Fault Codes