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Unread 26-01-2014, 22:03
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Alan Anderson Alan Anderson is offline
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FRC #0045 (TechnoKats)
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Re: Victors behaving erratically when PWM is plugged in

Are all three power LEDs on the Digital Sidecar brightly lit? Is the big orange Robot Signal Light blinking as expected?

The symptoms point very strongly to the Digital Sidecar not getting battery voltage on its power input. Enough current sneaks through the cable from the cRIO to let a couple of PWM outputs work (especially if you don't run them in reverse), but as soon as too many are connected they all get flaky.