Hello Guest it is April 22, 2021, 01:10:37 PM

Author Topic: Spindle feedback problems  (Read 3020 times)

0 Members and 1 Guest are viewing this topic.

Spindle feedback problems
« on: October 26, 2007, 06:51:51 AM »
Hi,
I am trying to set Mach3 up on a lathe.  I am using the index pulse from an encoder mounted to the spindle as feedback.  Mach3 accuratly moniters my spindle speed, I have checked with a laser tacho and the speed shown on the Mach3 screen is always with 1 or 2 RPM of my laser tacho (850RPM).  But when I go to use G95 I get a warning saying no feedback is found in G95 mode.  Any thoughts on what I should be looking at to sort this problem???
Thanks
Andrew

vmax549

*
Re: Spindle feedback problems
« Reply #1 on: October 26, 2007, 08:00:52 AM »
Hi Andrew, Go to config page, pins and ports, spindle setup. Make sure there is a check in the line for "USE Spindle feedback in sync mode."

(;-) TP
Re: Spindle feedback problems
« Reply #2 on: October 26, 2007, 09:08:53 AM »
Hi
Thanks for the reply.
I have this checkbox checked.

Andrew

vmax549

*
Re: Spindle feedback problems
« Reply #3 on: October 26, 2007, 10:29:16 AM »
Just as a reference, if you go to the diagnostic page. Then spin the spindle by hand does the index led light up as the sensor passes??

(;-) TP
Re: Spindle feedback problems
« Reply #4 on: October 26, 2007, 06:12:46 PM »
Hi
Yes I can ses the led light every rev.

Andrew

vmax549

*
Re: Spindle feedback problems
« Reply #5 on: October 26, 2007, 08:26:06 PM »
Ok in the diag sccreen is the feed sync led lit when you apply the g95? Do you  have the spindle running when you apply the g95?? The spindle may take a few revs to get synced up.

If none of the above effect it then we need to get ART.