PDA

View Full Version : X and y limit not working


cookie
12-20-2006, 09:47 AM
My x and y limit switchs are not working but have been. checked wiring and seems ok. In vn the no 3 is set to std switch. I have an 96 alpha.Any suggestions?

Thanks
Bruce
bob_lofthouse
12-20-2006, 10:55 AM
Set to 1 - as Limit Switch
cookie
12-20-2006, 11:18 AM
I set the switch to limit and still no response.
bob_lofthouse
12-20-2006, 12:12 PM
Do the lights on the switches come on when they run over the nuts or if a metal object is placed below them.

If the switches are just stuck/glued into place and not screwed into place, they can move.
cookie
12-20-2006, 12:38 PM
No red lights on the switch. switchs are glued and bolted.

Bruce
bob_lofthouse
12-20-2006, 02:17 PM
Bruce,

I would check inside your box or contact shopbot as it looks like an electrical fault.
richards
12-20-2006, 03:38 PM
Bruce,
The red LEDs on the proximity sensors are independant of the control box - that is, as long as they have +5VDC and GND connections, they will light up when their targets are within 2mm of a hunk of metal. If the LEDs don't light up, I'm guessing that you have a loose connection to either the +5VDC or the GND connection on the controller board.