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Author Topic: Lower spindle speed needed  (Read 1654 times)

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Lower spindle speed needed
« on: May 30, 2013, 02:57:01 AM »
Hello, i have the problem, my spindle starts at 1200 rpm, because the frequency converter needs a dc signal, i switched by a relay. The relay starts at a minimum speed at 1200 by mach 3. Is there a way to change the value, so my relay switched at 600 rpm, and not at 5% auf the max speed of 24000 rpm. I need lower speed for edgefinder...
Re: Lower spindle speed needed
« Reply #1 on: May 30, 2013, 07:58:23 AM »
Can't you just use an M03 to fire the relay so the signal is on and then command a S value for the rpm?

Mike
We never have the time or money to do it right the first time, but we somehow manage to do it twice and then spend the money to get it right.
Re: Lower spindle speed needed
« Reply #2 on: May 30, 2013, 11:13:27 AM »
I have seen, it is no mach problem, but tripple beast, because there a 3 pins and 4 signals, so it switches relais, if pwm is over 10%
I can only let watchdog or current reduction unplugged, then there is a pin free for directly switch relais...the mechanical edgefinder runs on 600rpm and my spindle in this configuration starts at 1200rpm, is this a problem for the edgefinder?
« Last Edit: May 30, 2013, 11:23:53 AM by Garfield »
Re: Lower spindle speed needed
« Reply #3 on: May 30, 2013, 11:48:02 AM »
I would check with you r edgefinder manufacturer to see what teh max speed is. I would think that 12 would be ok but what do I know.

Mike
We never have the time or money to do it right the first time, but we somehow manage to do it twice and then spend the money to get it right.