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| Wire my 3 phase motor |
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| lordedmond:
As you are from the UK 1 was the motor running from a normal TP & N network i.e. 415vac then it is wired as Star "Y" formation if thats the case then it will not run from an inverter fed from the domestic 220 vac single phase supply ( by saying inverter do you mean VFD ) to run on an inverter supply fed from 220vac single phase you need an inverter rated motor wound /connected in delta to give 220 vac across the phases you give us very little to work with just a vague pic no other info as to the type of inverter its output volts act ( if its a vfd then has it been programmed for your motor ) if you are not sure then for you and your equipment sake get some qualified advice from an electrician in person ( not a house basher ) Stuart |
| timeone:
A bit more info Sorry to be vague here is some more info the vdf inverter is the same as this make http://cgi.ebay.co.uk/1HP-3-PHASE-INVERTER-CONVERTER-240V-LATHE-MILL-DRILL-/380342848249?_trksid=p3286.m7&_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D2%26po%3DLVI%26ps%3D63%26clkid%3D434706827012670683 the details on the inverter are AC 1PH 200/240V 50/60HZ 15A OUT AC3HP 0-240V 0,200HZ 2HP The wire photo of the motor i posted doesnt show the wires to well but they are as below A red B yellow C blue N 3 wires looks like 2 brown and one black The motor had all white wires inside which ive disconnected during transportation these went to a switch with a ? speed control as in this pic http://i103.photobucket.com/albums/m141/beekuk/lathe/a.jpg the mains wires coming out of the junction box on the lathe to connect to 3 phase supply are brown yellow black earth hope this will help |
| lordedmond:
Ok now you have really muddied up the waters Ok for the VFD 220 vac nominal 3 phase , that motor will not like the Hz above 60Hz ,thats why I commented on the motor being inverter/vfd rated the old 3 ph standard ( when I was an apprentice ) was red white and blue, later changed to red yellow blue the three wires on the the N connector are the a2 b2 c2 wires connected in star ( high voltage e.g. 415 volts ac ) with the red = a1 yellow = b1 and blue = c1 to use your inverter that motor will need to be changed to a delta config i.e. 220 vac 3ph I am making some assumption here without hands on I cannot be sure ( caveat emptor ) that switch is the thing that has muddied thing up its more likely to be forward and reverse ( you only need to swap any two wire to reverse ) the mains wire are not standard so no comment |
| JohnC:
Remove all the wires from the N terminal. Reconnect to the other 3 terminals as follows: Red/ Brown Yellow/White Blue/Black If the motor turns the wrong way exchange any two pairs of wires. John |
| lordedmond:
Ok John please read timeone post he has there wire on the N term are his words two black and one brown the wire colours are not standard they are normally internal all the shame colour and are tagged a1,a2,b1,b2,c1 and c2 the only way is to ring them out a2 to b1 b2 to c1 c2 to a1 i.e. end of winding a to start of winding b end of b to start of c end of c to start of a ie standard delta config Stuart wound many of these when I was an apprentice |
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