Hello, I would like to operate a servo drive from
AMC. I want a minimum of 1.5kW motor and drive combo. I think that I want to use it first in analog velocity control mode. My questions to start are:
1. Will using a low pass filter on a pwm from a pic be sufficient or do i need an analog ic (if so, a recommendation on serial or parrallel comm would be great)?
-If so, how can i tell from a data sheet on the drive how low the low pass filter needs to be?
-Would it be easier to just get a pwm version of their drives?
-I belive that in order to use the +/-10 V input to their drive (assuming i go analog velocity mode), i will need a op amp with a gain of 2 to get from my 5 v pwm on the pic to the 10v, and an inverting op amp to get the negative side of the signal. What would be the easiest way to switch between the positive signal and the negative (another output pin switches something (mosfet, etc.)