Servo Rotating Problem

Hi,

From previous post of sub "servo problem"

imran:

>> But the problem come that my servos keep rotating
>> slightly when i start my amps to drive signal ??
>> (noise maybe)

ray:

>Okay. This is good actually. It means that the amps and motors are
>working allright. If there is a bias or zero adjustment on the

amps, start

>them without a signal from the stg card and get the motion as small

or slow

>as possible.
>Next there is a bias adjustment in the emc ini file for each axis.

This

>should offset the zero point of the stg card so that you can reduce

even

>further the motion of the axis when no motion signal is present.
>Once the position loop is closed -- Estop off and machine on, the

motion

>should stop entirely. Now you should get motion when you jog in

manual.

>It may be jerky and cause all kinds of alarms until you have tuned

the axis

>for proper motion. There is some good tuning stuff in the handbook

under

>pid tuning.

I've stopped 2 axes rotation till 0.000x of an inch by adding
insulation , ground
but the third axes still keeps rotating , how can i use the Bias
adjustment, i tried to give it
values like 4 & -4 but didn't work

Also when I go to Machine ON mode the Motor/s takes a jerk & emc
gives error
"Axis x following error" , x=0,1or2.
How can i get in the Machine ON state

Imran