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Unread 21-01-2010, 10:39
EricWilliams EricWilliams is offline
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FRC #2039 (Rockford Robotics)
Team Role: Mentor
 
Join Date: Mar 2005
Rookie Year: 2001
Location: Rockford, IL
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Unhappy Labview Servo Control Issue

We're experiencing problems controlling servos using the KOP servo and Labview. We connected the servo (PWM6, black wire facing out, jumper pin inserted) to the digital sidecar (DIO Slot 4) and ran the "Servo Example". The project deploys and the cRIO communicates with our laptop, but moving the servo control indicator does nothing.

All three power status lights are on. When we short the associated 6V power enable pins on the DSC using a screw driver, the servo jumps a single step and then goes dead again. The shorting jumper we used is definitely electrically sound, and is shorting the pins.

Is this a fried DSC? What debugging should we do, and what steps should we take to ensure not to fry another?