32785 – WinMax Help Center

Search Errors / Alarms

Commutation Offset Could Not be Determined

Axis could not carry out required motion
During commutation setting process, axis got into resonance
Motor has not been supplied with current
Sine-wave method without success, although axis has required freedom of motion and doesn’t show any resonance phenomena
Signals of motor encoder do not reflect motion process of axis; encoder cables of 2 drives possibly mixed up – or – Incorrect polarity of encoder signals

Check axis for stiffness or blocking; if necessary, reduce friction (lubrication, guiding device of trailing cable installation) or remove blocking – or – Set ‘search direction for sine-wave method’ to ‘increase of amplitude with priority’ in ‘P-0-0522, Control word for commutation setting’ – or – Increase value in ‘P-0-0506, Amplitude for angle acquisition’ in order to increase excitation amplitude for sine-wave method compared to frictional force of axis.
Set ‘search direction for sine-wave method’ to ‘increase of frequency with priority’ in ‘P-0-0522, Control word for commutation setting’ – or – Reduce value in ‘P-0-0507, Test frequency for angle acquisition’ in order modify excitation frequency for sinewave method compared to resonance frequency of axis
Check motor connection
Try with manually input values if automatic search for motorspecific values for ‘P-0-0506, Amplitude for angle acquisition’ and ‘P-0-0507, Test frequency for angle acquisition’ doesn’t provide any result in spite of several repetitions.
Check motor encoder signals. To do this move motor knowing manufacturer-side setting for sense of rotation or velocity polarity and check actual position values with regard to polarity and validation.

RexRoth