Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: Zaryk on September 21, 2008, 08:52:28 AM

Title: Spindle configuration problem
Post by: Zaryk on September 21, 2008, 08:52:28 AM

Dear friends. Sorry, but my English is not good. I have a problem with Mach PWM spindle control. I use ncPod board and it work perfect. I connect PWM to Digital converter and config Mach. After them I connect voltmeter to PWM converter output (0-10V) and I have controling voltage. If I input in Mach 18000 rpm I view 9.97V on voltmeter. But my spindle max 24000 rpm! Also I input less 8000 rpm then view on voltmeter 0V. I dont find spindle preferences in Mach. Where is I input min and max spindle rpm?

Title: Re: Spindle configuration problem
Post by: Chaoticone on September 21, 2008, 12:39:18 PM

Look in config., spindle pulley and in config., motor tuning set your vel. for the spindle motor to your max spindle RPM.

Brett

Title: Re: Spindle configuration problem
Post by: Zaryk on September 21, 2008, 01:02:55 PM

Thanks for you answer. I did it, but there is no result. In pulley selection I have Min 1000 and Max 24000 RPM

Title: Re: Spindle configuration problem
Post by: Chaoticone on September 21, 2008, 01:04:45 PM

For which pulley?

Brett

Title: Re: Spindle configuration problem
Post by: Zaryk on September 21, 2008, 01:10:58 PM

First pulley. All others are identical.

Title: Re: Spindle configuration problem
Post by: Chaoticone on September 21, 2008, 01:15:34 PM

Post your xml file and I'll have a look. I don't have or have ever messed wtih the NC pod so I will be limited as to what I can test.

Brett

Title: Re: Spindle configuration problem
Post by: Zaryk on September 21, 2008, 01:20:51 PM

If I input less 8000 RPM then Mach gives out the message "PWM Bumped to minimum setting".

Title: Re: Spindle configuration problem
Post by: Chaoticone on September 21, 2008, 01:28:30 PM

Have you set up your spindle motor in Config, motor tuning?

Brett

Title: Re: Spindle configuration problem
Post by: Zaryk on September 21, 2008, 01:35:55 PM

Yes, but there are no changes. I have returned to standard options. I use PWM control, no step/dir.

Title: Re: Spindle configuration problem
Post by: Chaoticone on September 21, 2008, 01:39:34 PM

Go into motor tuning, spindle motor and change your vel. to 24000, save axis setting and exit. See if that helps.

Brett

Title: Re: Spindle configuration problem
Post by: Zaryk on September 21, 2008, 02:00:25 PM

No result...

Title: Re: Spindle configuration problem
Post by: Zaryk on September 21, 2008, 04:33:42 PM

I use AutoCal in spindle calibration window. When calibration ended I have checked spindle work. It has absolutely ceased to work! At any RPM on the voltmeter 9,97V.