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Submitted by LeGa on Sun, 08/28/2016 - 05:08

The motor encoder is connect to auxiliary encoder's inputs for Dual Loop.
Do BZ/BX sine commutation will be performed by this encoder (but no by load encoder) in such case?

Comments 3

AndrewS on 08/31/2016 - 10:30

Hi LeGa,
Yes, when running dual loop with a sine drive, the sine computation angle calculation is based on the aux encoder inputs, which should be connected to the motor shaft for stability. The BM calculation should likewise reflect the motor's encoder resolution, not the load encoder.

Regards,
Andrew

LeGa on 09/04/2016 - 04:13

The servo design is started from single loop as well - i.e. motor encoder is connected to Main encoder's inputs and load encoder - to Aux ones. Using such Hardware configuration with Dual Loop DV 1 leads to using load encoder for sine commutation that is not recommended. And Sampled Dual Loop maybe recommended for implementation for such case.

AndrewS on 09/06/2016 - 12:10

Hi LeGa,
For most applications using dual loop, the entire application runs in dual loop and there is no reason to switch back and forth. For the rare applications that require switching back and forth, please call in to speak with an Applications Engineer or email support@galil.com to discuss your specific application requirements.

Regards,
Andrew