Quote Originally Posted by JAZZCNC View Post
No not really. But why would you be running signal wires for Servo's drives thru drag chain.? Where are you locating the drives.?
Ok, I've looked up the servos and see the drives are mounted to the motors. In this case, you need a high quality shielded cable and make sure you run it well away from high voltage cables in the drag chain.
This is one of the very reasons why I don't like these types of drive. Essentially you are going to be running really long aerials around your machine which are just looking to soak up any stray voltages and electrical noise passing there way. This can and does cause all sorts of crazy things to happen.

The other is the vibrations that get transmitted through the motors and machine will IMO eventually cause issues. Then you also have to protect them from debris etc.

Yes AC and DC servo motors are very quiet compared to steppers, Silent machine killers when they take off from stray electrical noise.!