Hello Guest it is April 24, 2024, 02:55:27 PM

Author Topic: Mach 4, Pokeys and a VFD - spindle control issue  (Read 379 times)

0 Members and 1 Guest are viewing this topic.

Mach 4, Pokeys and a VFD - spindle control issue
« on: December 24, 2023, 12:29:47 PM »
Hi All,

I am having trouble with spindle control using CNC57 pokeys, Mach 4 and an Allen Bradley VFD. 

Here is what I get;

Call for 500 RPM, get 665
Call for 1000 RPM get 783
Call for 1500 RPM get 905

Any ideas?

Thanks,
Dave

Offline Graham Waterworth

*
  • *
  •  2,673 2,673
  • Yorkshire Dales, England
    • View Profile
Re: Mach 4, Pokeys and a VFD - spindle control issue
« Reply #1 on: December 24, 2023, 02:44:18 PM »
Have you set the speed range in the pulley screen, mach uses this to work out the 0-10v range.
Without engineers the world stops
Re: Mach 4, Pokeys and a VFD - spindle control issue
« Reply #2 on: December 24, 2023, 08:25:19 PM »
I have not but wondered about it as I have seen the screen in Mach 4,  Thank you!  Are you aware of any print material to guide me in this process?

Offline Graham Waterworth

*
  • *
  •  2,673 2,673
  • Yorkshire Dales, England
    • View Profile
Re: Mach 4, Pokeys and a VFD - spindle control issue
« Reply #3 on: December 25, 2023, 07:44:50 AM »
Its just a case of selecting the pulley and entering the 0 for min speed and enter what ever you max is for the spindle, if you check the Help menu you can open the documents
Without engineers the world stops