Originally Posted by
rosli
hi.
you have to give more details.????
what cnc are you using, what is his output to power module, what is the retrofiting mode.
Hi, my cnc is a pci card with cnc software, I'm using 10 to -10 V to command the speed signal, my servo encoder is 2024 ppr, I close the loop from the motor encoder to the servo driver controller and from the yaskawa servo controler using the encodeer output to the cnc card, the problem is that there are two loops and I think that they are fighting with each other, I have the yaskawa PID loop and the servo card PID loop. When I use the yaskawa driver I have option tu select PI control or P control, the problem I have is the movement is not smooth, the speed fluctuates, any sugestions?
Thanks
ivan
Josep