Denford Triac VMC with ATC Conversion / Fix

[Chaz]

In all honesty I've very little experience with IP-A or Analog drives or motors with Resolvers which will make a difference to PID setup.
My motors are Brushed DC with Tacho's and Real Encoders which makes a difference to your setup. My drives PID was set up already for the Velocity/Current and the IP-A Autotune did a good Job with position so little to no tweaking required.

I would think that because your drives where already setup then you'll be in a similar position with Velocity/Current setup in the drive so using the Auto tune in IP-A would get you close. Then it's just a case of playing with IP-A PID settings to get nice stable smooth movement.

Thanks. Considering the mill was working before, the drives should be setup correctly. The 'output' from the drive is as if it was an encoder. The drive takes the resolver input and converts it to encoder type for the controller.

I have a question too around cabling whilst I try and find out what could cause any funny issues.

I am using Cat 5 cable for the encoder and ref signals. So, its shielded, its 8 core + the outer core.

The drawings I have show that the -10 to +10V run in their own shield. Currently I am sharing this common cable for - 10 to + 10 plus the encoder feedback. Is this a problem? I dont mind splitting them but dont want to buy cable I dont need.

Thanks