Motion Control and Motor Drives

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Load cell as feedback with NI Motion

Hello everybody,

 

I'm not advanced in LabView and this is my first time with NI Motion.

I have PCI 7354 and UMI 7774. UMI 7774 is connected to AKD Drive which controls the servo motor. 

I configured everything according to the this document - http://www.ni.com/pdf/manuals/375543c.pdf and its working. 

 

But I also have load cell with analog output 0-10V which I want configure as analog feedback. 

Load cell is mounted on the end of the electric actuator (with my servo motor). I want choose setpoint force and by extension of the actuator reach the force. 

 

It is one problem. Analog input in UMI 7774 has 16 bit resolution and when I read this input,  I see that value oscillates about +-50 digits. Ofcourse its normally not so big problem but when this analog input is set as servo feedback, my motor is oscillates too. 

 

Is there any solution for this problem? Maybe I something miss in MAX? I found topics about analog feedback but there was about torque sensors. 

If you need more details, tell me.

 

Please help me. Best regards
Peter

 

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