220v Switches for CNC lathe build..

[Spinnetti]

That is exactly what you need, with 2 NC and 2 NO contacts. Each side will have 1 NO and 1 NC. You can connect one terminal from each block together, that will be your common, then you will have a C, NO, and NC for each switch position with center being off.

I can draw a picture if you need it, but your link is the exact thing you need assuming it fits the cutout and you have enough space behind the panel to fit the double stacked contacts.

Matt

Thanks Matt... I'l order up the switch. I'm making a custom panel anyway over the z-axis motor, so space won't be an issue. I'll post back when I figure it out, or get lost again!

Thanks for the help!

[keebler303]

Hook up the contacts like this and it will be straight forward how to replace the old switches.

Matt

[Spinnetti]

Hook up the contacts like this and it will be straight forward how to replace the old switches.

Matt

Thanks Matt! Switch on the way along with a optical pickup so I can get spindle speed for threading....

[Armando6887]

Thanks for the tips guys.... Lathe is a G2949 and looks like the controls are 24v. Here's the machine so far. I got the mechanicals done, but am a bit chicken on the electrical. I'm sure I make it harder than it has to be. I have a kill sw, and really just need a new forward/reverse switch arrangement.

[Spinnetti]

Sorry to be dense... could you guide me to make sure I don't blow something up?

I got my switches in (good call on the vendor!).

Matt, Here's how my switches are wired now for forward and reverse. Can you confirm for me how that matches to your picture? I put numbers on them to make it easy, like 1-2, 2-3 kind of thing...

Thanks!

[keebler303]

Sorry to be dense... could you guide me to make sure I don't blow something up?

I got my switches in (good call on the vendor!).

Matt, Here's how my switches are wired now for forward and reverse. Can you confirm for me how that matches to your picture? I put numbers on them to make it easy, like 1-2, 2-3 kind of thing...

Thanks!

Lets say there is a left switch and a right switch, like my drawing. The black lines are wires. Just match up the labels on my drawing to yours. With your new switch, you have to make a 3 pole contact out of the separate 2 pole NO and NC. If you connect one terminal of each together, like my drawing shows, that becomes your COM terminal. Then its just a matter of matching up the contacts from your drawing to mine.

my left NO = your left NO
my left COM = your left COM
my left NC = your left NC

Same for the right.

Matt

[Spinnetti]

Lets say there is a left switch and a right switch, like my drawing. The black lines are wires. Just match up the labels on my drawing to yours. With your new switch, you have to make a 3 pole contact out of the separate 2 pole NO and NC. If you connect one terminal of each together, like my drawing shows, that becomes your COM terminal. Then its just a matter of matching up the contacts from your drawing to mine.

my left NO = your left NO
my left COM = your left COM
my left NC = your left NC

Same for the right.

Matt

Gotcha.. I'll try it tonight...

Thanks.

[Spinnetti]

Thanks everybody!

Just wired it up. Worked first try except switch direction was backwards, so swapped the two N/O wires and its good to go. Thanks for the advice! Now, just need to make up a new control console and mount up the new switches....