On 03/23/2016 07:29 AM, John Thornton wrote: > Hi Rick, > > Does the drive pass the encoder pulse through to the control card? > > An analog velocity servo, pretty much by definition, does NOT use the encoder, but a tachometer, for velocity feedback. (Fanuc used analog velocity servo amps, but derived the tach signal from the encoder, not a physical tach.) There are some "digital" velocity servo amps that use an encoder for velocity feedback, yet take analog commands from the control.
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