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Colchester Chipmaster wiring diagram

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bob bobsob01/12/2014 09:12:19
1 forum posts

Hi all,
I'm looking for a diagram for the motor field connection options on a Colchester Chipmaster as I need to swop it from 400v star to 230v delta.

I know these had a dual wiring option but the only diagram I have is very faded and I don't want to risk getting it wrong.
Any help finding a diagram would be much appreciated!


Ian S C02/12/2014 09:42:24
7468 forum posts
230 photos

Bob, I'd suggest "Google "it, I put in motor circuit diagram for Colchester Chipmaster, and got a flood of answers.

Ian S C

Dave plus / minus 40 thou02/12/2014 11:16:44
19 forum posts
4 photos

HI Bob, have a look under the motor terminal cover - thats where i found the diagram for my Colchester Student!


Phil Whitley02/12/2014 11:25:47
1395 forum posts
147 photos

HI Bob, there are three windins in a three phase motor, usually labelled A B and C. The winding connections are marked A1 and A2. B1 and B2 and C1 and C2. Connect A1 to B2, B1 to C2 and C1 to A2. You now have the motor connected in delta. Connect one phase to each of the three junctions and test. If the motor runs the wrong way reverse any two of the incoming supply leads. If this makes no sense send a pic of the motor connector, and any markings you can see on the motor leads, and the make of motor, and I will try to help.



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