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Unread 26-01-2011, 19:52
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Ether Ether is offline
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Re: Stalling the BaneBot 775 motors

Quote:
Originally Posted by fox46 View Post
Well at 20% of stall current (130A) and 12V, you have a power consumption of ~300W.
The RS775 as rated for 12V operation (which is how we are using it) has a stall current of 86.7 amps and a stall torque of 112.84 ounce-inches.

If stalled at 20% of this rated torque, the voltage will be 20%*12 and the current will be 20%*86.7, so the input power will be (0.2)(12)(0.2)(86.7)=41.5 watts, not 300 watts.

Even if the OP meant 20% of the 18V stall torque, the power would be (0.2)(18)(0.2)(130) = 93.6 watts.




Last edited by Ether : 26-01-2011 at 20:05.