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| Wire my 3 phase motor |
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| timeone:
Im sure one of you clever guys will be able to adise me how to wire my 3 phase motor ready to connect to my inverter below is a pic of the terminals in the motor as you can see terminals are A,B,C,N The motor had previously been connected to a direct 3 phase supply so how do i wire it up for my inverter any help appreciated |
| raynerd:
You know on the inside of the cover you have just removed the expose the terminals for the picture, is there not a wiring diagram for delta. Mine was an identical sort of thing with labeled terminals but there was a little diagram showing the layout for star and one for delta. Chris |
| timeone:
Chris Yes there is a sticker on the cover but bearly readable. How did you wire yours to an inverter ? appreciate any help as id like to get the lathe running today |
| raynerd:
All the info for mine is here: http://madmodder.net/index.php?topic=3420.0 and some more here: http://madmodder.net/index.php?topic=1231.75 I think the info will be fairly meaningless to your situation. I just followed the wiring diagram like a lemming, I don`t really understand why it is wired in such a way. I expect if you google delta wiring you`ll find more info and will be able to figure out the wiring. Others on here will hopefully chime in soon as they have much more understanding than me! Chris |
| David Jupp:
Don't rush - you could easily wreck something! (including your inverter). I can't quite make out from the picture - if there are 3 wires from inside the casing to the N terminal, then these are the 'opposite ends' of windings A,B,C. In which case they can be separated and the wires re-arranged to give Delta connection. Identify which is which with a multi-meter or circuit tester. If there is only a single wire to the N terminal, then the Star Point is buried internally somewhere - in which case it isn't an easy re-wire job, but it may be possible if you strip the motor further and un solder the star connection, then re-terminate the ends. This could be quite tricky (I have a motor where I'm still trying to locate the star point for exactly the same reason - though on mine it isn't even brought out to a neutral terminal). Good luck, but again please don't rush it - the chances of major damage are significant if you get it wrong. |
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