Thread: Dc servo driver
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30-01-2013 #1
Hi all,
I bought 3 dc servo drivers off eBay and cannot really find any information on the case to get any further detailed information :(
I have the matching motors for the drives which are wired into blocks which slot in so they are no problem.
This leaves 7 terminal screw blocks.. I've done a test using an old atx psu powering it up using 12v and the motors ran. The supply was connected to terminals 5 and 7 so I assume that 6 is for a ground. Terminals 1,2 and 3,4 are respectively shorted with bits of wire.
so can anyone help me figure out what 1,2 and 3,4 are and how I may control it?
I can add a picture tomorrow if that will help.
many thanks,
SamLast edited by Treemonkey; 30-01-2013 at 10:16 PM. Reason: Crap title!
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30-01-2013 #2
Is there and make or model number on the drives?
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30-01-2013 #3
Nothing at all, I'm led to believe that they are made by Japan servo co. ltd since they match the motors but from the limited information on the motors I cannot find anything more about them...
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31-01-2013 #4
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31-01-2013 #5
Silly thought, don't suppose it has an encoder? G.
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31-01-2013 #6
Hi G,
I do believe the motors have encoders attached, I can add pictures of the motors tonight If it helps!
Cheers,
Sam
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31-01-2013 #7
Might be worth removing the cover from one of the drivers and having a look to see if there is any lettering on the circuit board which might give a clue.
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31-01-2013 #8
Hi Sam, I only mentioned the encoder in case that was the answer to the extra wires! G.
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31-01-2013 #9
Hi G,
the encoder is connected using a push in connection. I can only guess that 1,2 and 3,4 can somehow be used to control the motion. I guess that when one set is not shorted the motor will run in reverse leaving the other one as a step input? I will update the thread later when I've tried!
Cheers,
Sam
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01-02-2013 #10
Hi all,
I've had another tinker and these combinations will start the motor spinning (always same direction):
Pins shorted:
1 , 4
1 , 2 and 3 , 4
I have a multimeter If there are any readings that may help work out the pin configuration.
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