Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: babinda01 on October 26, 2007, 06:51:51 AM
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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
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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
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Hi
Thanks for the reply.
I have this checkbox checked.
Andrew
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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
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Hi
Yes I can ses the led light every rev.
Andrew
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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.