How can I make a servo motor move "faster" (particularly at cold temperatures) PCI-7340

[Vlad_P]

Hi,

I would like to find out what parameters/settings I would have to play around with if I would want to drive a servo motor "harder" or "faster" between various positions (particularly at cold temperatures, where motors generally move slower and need more voltage/current). Historically I've played around with Velocity/Acceleration parameters in the trajectory settings, but it didn't seem to affect the motion at all.

Thanks,

Vlad

[PaulRB]

Hi Vlad,

Increasing the acceleration and velocity can make the motor move faster. If this isn't working, I have a few more suggestions.

1. Make sure your motion system is tuned well. If you have 'loose' tuning (Kp and/or Ki are too small), your motor will take longer to get to its setpoint. This can make a motor appear sluggish.
   
   
2. Make sure that your drive and motor are properly paired. It is possible that the motor controller is already outputting the maximum control signal (+/-10V). If that is the case, there is nothing you can do from the controller to make the motor move any faster. You would have to change your motor, your drive, or both. Also, some advanced drives allow you to set the Amps/Volt ratio. What this means is that you can set how much current the drive produces for every 1V increase of the control voltage. Increasing this ratio will allow your motor to move faster. 

Thanks,

[Vlad_P]

Thanks Paul, I'll give these suggestions a shot!

Vlad