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Unread 18-02-2005, 14:06
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Re: Victor and Spike in same circuit?

Quote:
Originally Posted by phillutz
We have an arm that "back-drives" when a tetra is on the arm and the motor is neutral.
The arm is on a Victor to provide speed control.
A spike would operate the arm too fast.

Can we wire a spike and a victor to the same motor?
Looking to operate it as follows

1. Raise Arm. (Victor controlling speed, spike controlling nothing really passing voltage through)
2. Arm Stopped. (Victor to neutral, spike to brake (rev & fwd = 1))
3. Lower Arm (sam as raise just other direction)

Is this legal?
Would it work?
Any other options we might try?

Thanks in advance,

Phil
No I don't think it's legal. That said, you can try setting the brake mode on the speed controller. If that also doesn't work, you have two choices: one is to try and create a closed loop system through programming to hold the arm steady. The other is to redesign your arm systems such that you get more torque out of your system. You may just be overloading the motor.

Matt
 


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