Communication Error1

What does dCE1 mean?

This communication error indicates a temporary hardware problem in the drive, likely caused by electrical noise interference. This can disrupt internal drive communication and operation, leading to unexpected behavior or shutdowns.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If noise reduction efforts do not resolve the fault, consider replacing the control board.

2. 4

   If the fault persists after control board replacement, the entire drive may need to be replaced. Contact Yaskawa for support.