Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: Jimchi52 on July 02, 2013, 08:32:36 PM

Title: Limit switches
Post by: Jimchi52 on July 02, 2013, 08:32:36 PM

Just hooked up limit switches to my bob and when I press a limit switch I get 5 volts. I do not see anything happening in Mach 3 . I have a c33 bob, a smoothstepper usb, what am I missing?

Title: Re: Limit switches
Post by: fabhund on July 03, 2013, 12:07:18 AM

From what I read. When you close the circuit you apply +5V to the input pin of your BOB ?
Many BOB input pins must have the input pin Grounded (0V) to work.
Best regards, Bo Andersen.

Title: Re: Limit switches
Post by: sebba on July 03, 2013, 05:23:09 AM

should I understand your switches are NC wired and when you press them the circuit is opened
this is OK but did you set the mach3 properly? I mean "Ports & Pins/Input Signals" - port number, pin number etc?

Title: Re: Limit switches
Post by: Jimchi52 on July 09, 2013, 09:11:38 AM

Have it worked out now having trouble understanding how to set up table dimensions and machine coredinates

Title: Limit switches
Post by: Fastest1 on July 11, 2013, 10:43:58 AM

There is plenty to understand there! Is there something in particular you are having an issue with or difficulty comprehending?