MechMate CNC Router Forum - Update on new Chinese Water cooled Spindle

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MechMate CNC Router Forum (http://www.mechmate.com/forums/index.php)

- 50. Toolheads (http://www.mechmate.com/forums/forumdisplay.php?f=25)

- - Update on new Chinese Water cooled Spindle (http://www.mechmate.com/forums/showthread.php?t=1008)

AdamHeard

Sun 01 January 2012 13:10

Quote:

Originally Posted by bradm

Actually, disconnect U,V,W, and measure the pairs of wires. If the resistance doesn't match (or likely, you find one wire that measures open), you know you have a problem. You want to confirm that the problem doesn't exist inside the spindle casing (in the windings), in which case the spindle is toast.

So measure the resistance of each input pin of the spindle to ground on the spindle, or measure the resistance between of all the possible pair combinations of the three input pins?

timberlinemd

Sun 01 January 2012 13:44

Do both. If you have continuity to ground in any of the pins your spindel is toast.

AdamHeard

Sun 01 January 2012 14:53

Thanks for your help!

When checking resistance is became clear that it was initially wired wrong. The numbered connector provided with the spindle had numbers that were incorrect. I wired U,V and W to what I determined were the three proper legs w/ my meter and it runs great.

BTW, are these 2 or 4 pole motors?

IN-WondeR

Sun 01 January 2012 17:08

A good thing that I stumbled across this thread, otherwise I would have mounted my 0-10V speed control wrong to the VFD... :)

Gerald D

Sun 01 January 2012 21:31

2-pole motors

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