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Author Topic: lathe spindle control pwm or step/dir ?  (Read 2930 times)

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lathe spindle control pwm or step/dir ?
« on: June 09, 2011, 12:17:15 PM »
I am currently in the early planning stages of small lathe conversion

I am looking to use 1.5kw (3ph) motor controlled by VFD

possibly a IMO Jaguar VXR inverter (1ph input)

When using mach is there preference to the type of

motor control ie either pwm or step/dir I should aim for ?

I am pretty green at this so I am trying to get everything

clear in my head first before I part with cash.

Cheers George

Re: lathe spindle control pwm or step/dir ?
« Reply #1 on: June 09, 2011, 05:46:14 PM »
Hi George,

I sell both types of voltage generators, and I find that the PWM version are simpler to set up and more resilience to noise. I would suggest the PWM control type.




Homann Designs
email: peter at homanndesigns.com

Offline Katoh

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Re: lathe spindle control pwm or step/dir ?
« Reply #2 on: June 10, 2011, 02:02:14 AM »
I use Peter's DC06 on my router 3.7Kw driven by a vfd. Works a treat, got speed on off and direction, Highly recommended and mine has done hours and hours on end with never a hick up.
Be warned depending on your BOB  you may have some issues, I remember mine gave me a bit of grief before I managed to get it to run correctly.