Encoder fault

What does 43 mean?

A problem has been detected with the encoder signals, such as missing channels (A or B), reversed direction, or a missing encoder board. This prevents accurate motor speed and position feedback, leading to unstable or incorrect motor control in closed-loop applications.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the encoder unit itself for physical damage, misalignment, or internal failure.

2. 4

   If operating in open loop, check the encoder frequency for plausibility to ensure it's receiving a signal.