Control Board Connection Error

What does CPF03 mean?

There is a connection error between the control board and the main drive unit, or the drive is experiencing operational issues due to significant electrical signal interference (noise). This can lead to intermittent faults, unreliable control, or a complete failure to operate properly, impacting machine safety and production.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the problem continues after verifying connections and mitigating noise, contact Yaskawa technical support to replace either the control board or the entire drive unit.