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servo only moves one direction

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Post subject: servo only moves one direction

Posted: Tue Sep 18, 2012 3:54 pm

Roboteer

Joined: Tue Sep 18, 2012 3:39 pm
Posts: 2

I have a servo motor (one of two motors on the Robotic Arm "shoulder") that only moves in one direction. I have it taken off the base so the motors can move freely. If I try to drive back, only one motor moves back. I can push the dead motor back to the position of the other motor, then drive "forward" again and the dead motor moves forward. Is my servo motor fried? Or is there something I can fix?

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zenta

Post subject: Re: servo only moves one direction

Posted: Tue Sep 18, 2012 4:57 pm

Robot Guru

Joined: Thu Nov 09, 2006 5:46 am
Posts: 2078
Location: Norway

Sounds like one transistor in the H-bridge is blown.
You must replace the electronic board.

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daved

Post subject: Re: servo only moves one direction

Posted: Wed Sep 19, 2012 7:24 am

Roboteer

Joined: Tue Sep 18, 2012 3:39 pm
Posts: 2

Ok, thanks. I just thought I'd ask before getting a new motor. Thay're not that expensive anyways - $31...
Do you know if the board is available?

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