What Is the Servo Dither in an MX80L?

Owned by Julianne Mahley (Unlicensed)
Last updated: Aug 07, 2024 by Eric Rojas (Unlicensed)
1 min read

Servo dither will be dependant upon the encoder resolution, the drive tuning, and the servo loop. In the MX80L dither can be measured in encoder counts in the following table:

Encoder Resolution Dither Counts 5 micron 0 counts 1 micron 0 counts 0.5 micron 0 counts 0.1 micron 1-2 counts 20 nanometer 2-4 counts

 

 

 

 

For example a unloaded MX80L-MS will dither a 1-2 encoder counts if using a 0.1 micron encoder BUT if using a 0.5 micron (or more coarse) no dither will be visible vie the encoder.