How to properly ground analog output signal?

[Wayne.C]

Dan,

It seems like you should be able to use the offset of speed parameter to create a deadband and prevent this.  Manual indicates that each step of offset=3mv. 

Another thought about the noise issue.  Do you have an o-scope you can use to look at velocity signal to see what kind of noise is causing all this?

[dbmeor]

I did an auto adjust of this parameter using the driver interface and this sets the offset value so that the motor stops with a 0V signal (atcual is +/- 3mV)  But upon power cycling the drive the voltage seen by the drive must change and it moves.  So I have to run the auto adjust affset again.  Don't know why the voltage would change on power up.
Any thoughts on decreasing the resolution of the output voltage to account for this?

[dbmeor]

I seem to have eliminated my problems by using a wiring configuration as shown for Floating Signal Sources, DIFF input for Analog signals.  I used a 2k ohm resistor on both the +/- AO lines to GND

[Wayne.C]

Dan,

Glad you got it figured out.  Thanks for sharing solution.