Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: vithanidevesh on April 01, 2015, 02:48:57 AM
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Hi
I am trying to tune one servo
Motor is directly coupled with screw. 2 revolution of motor will make 5 mm movement
Servo motor has techo connected. There is no cpr written. Only 20mVrpm written on name plate
What should i feed to tunning page?
I kept mach steps 140 after lot of trials. Now if i give command from mdi to move 550 mm, my physical movement is around 554/557/555 - varying random and that too in both directions
Please suggest what to do now
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Ok i know now what the problem is
My drive needs run command plus reference. Mach gives reference but not start command so i tried using brain and used output which will be high when feedrate is >0
Now my question is - how should I give run command to drive? I think its not safe that i always give run with no reference and control drive with reference only. M stuck here. Please help me