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 Post subject: RoboClaw Torque Control
PostPosted: Tue Apr 08, 2014 12:43 am 
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Joined: Tue Apr 08, 2014 12:21 am
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Hi,

I am experimenting with a roboclaw for my robotic arm project. I know that roboclaw provides speed and position control. However, I'd like to use my own control method to make my robotic arm follow the motion trajectory. It requires the control of output torque for every motor. Usually for DC motor the output torque is proportional to the amature current. Then can I use roboclaw, say with appropriate input signal from arduino, to output a torque which is my desired value?


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 Post subject: Re: RoboClaw Torque Control
PostPosted: Thu Apr 24, 2014 5:23 pm 
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Location: Temecula, CA
You would use PWM control(eg duty cycle commands). The question would be is the current sense built in to the roboclaw good enough for your control feedback. If not you would need to add your own external current sensor circuit.

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