AC servo motor not stationary in idle state

I mean try to find out if encoder is sending good signal to drive module..
That can be a point to look for..
OK, I will try to work on this point and get back.
But, does a brand new servo is likely to have fault with the encoder though I had run the Jog mode before installation?
I had that problem from the very first day of installation.
 
In the meantime, can the problem be overcome using following function?

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The motor can be clamped to ZERO SPEED right after the Pulses and then released just before the next Pulses. Did I got this concept right?

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I have observed that the motor is working fine without load.
Does it means that the problem is with roller set?
If so, then why does the motor run without problem, occasionally?
Or the problem is due to load inertia or some other technical parameter? Due to lack of experience, I am not sure.
 
I have observed that the motor is working fine without load.
Does it means that the problem is with roller set?
If so, then why does the motor run without problem, occasionally?
Or the problem is due to load inertia or some other technical parameter? Due to lack of experience, I am not sure.
I can't give a comment if that is because of load/roller...
My suggestion /advise was to check first if encoder is working properly..
 
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