Lag Error

What does 42 mean?

Immediate switch-off because the actual position or speed of the motor is lagging too far behind its setpoint. Possible causes include an incorrectly connected encoder, overly short acceleration ramps, a P component of the positioning controller that is too small, incorrectly set speed controller parameters, a lag fault tolerance value that is too small, or mechanical binding in the system.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Set the P component (proportional gain) of the positioning controller to a higher value.

2. 4

   Reset or finely tune speed controller parameters.

3. 5

   Increase the lag fault tolerance value (e.g., P703, P704 for positioning tolerance).

4. 6

   Check the wiring of the encoder, motor, and mains phases.