C Connect Err

What does F105 mean?

The control module was detected to be disconnected from the power module while power was still applied to the drive. This "hot-swapping" action can lead to parameter corruption, damage to the control module, or damage to the power module due to sudden power cycling of sensitive electronics.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Crucially, always remove all input power to the drive before attempting to remove or install the control module to prevent this fault and potential hardware damage.