I have a Yaskawa SGDH servo drive with 1.5kW AC servo motor. Connected to Mach3 setting it to "pulse/step" mode.
Jogging in Mach3, it changes the servo RPM but not position. I connected to Z). For example Z+1 -> servo rotates at say 10RPM. Z+100 -> servo rotates at 3000RPM. And it continues to rotate at current RPM when stopping jogging.
Any ideas??

- What i don't truly understand is the CLR input. I have nothing connected to it, maybe that should be connected to something? Accoring to the manual, position mode is pulse,dir,clr..
- Or some setting I have overlooked maybe?

Manual: http://www.yaskawa.com/site/dmservo.nsf/(DocID)/TKUR-5PHSJH/$File/Sigma-II%20User%20Manual.pdf