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Unread 04-02-2017, 18:22
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Re: PID Loop Constants

You are correct, setting the I and D constants to zero makes it a P controller rather than a PID controller.

To answer your question, sometimes a P loop is all that is needed to get the system behaving the way you need it(although usually at least the D constant is also required in FRC robots). It's important to note that when you are tuning a PID controller, you typically start with the P value and leave the I and D at 0. For more information about tuning a PID controller, I'd recommend this Wikipedia article as a starting point. It's not the only way to tune a PID controller by any means, but it is the most widely used.
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