Controller hardware suggestions for first DIY build

I was just reading a pdf regarding controls panels & noise. The recommendation was to have a separate noise filter placed physically close to each switching PSU, as they can create a bit of noise. Linear power supplies aren't as "noisy" but are a little larger. The documents is geared for industrial situations but it makes for an interesting read.

literature.rockwellautomation.com/idc/gr.../gmc-rm001_-en-p.pdf

On the driver I'm using for my AC servo motor spindle the manufacturer recommends a noise filter for the power terminals for the drive's motor circuitry & a separate noise filter for the drive's logic circuitry. As well as an single phase AC line reactor.

BeagleBrainz wrote: I was just reading a pdf regarding controls panels & noise. The recommendation was to have a separate noise filter placed physically close to each switching PSU, as they can create a bit of noise. Linear power supplies aren't as "noisy" but are a little larger. The documents is geared for industrial situations but it makes for an interesting read.

literature.rockwellautomation.com/idc/gr.../gmc-rm001_-en-p.pdf

On the driver I'm using for my AC servo motor spindle the manufacturer recommends a noise filter for the power terminals for the drive's motor circuitry & a separate noise filter for the drive's logic circuitry. As well as an single phase AC line reactor.

That is basically how my 'main' rig is setup. I think Tom at CandCNC gave me that advice. Thanks for sharing the pdf.

rodw wrote:

txtrone wrote: www.geckodrive.com/support/g251x-rev-9.html

Sorry, I should have asked for a link to motors. Mainly to work out the voltage you need.

I finally got my hands on this.

rodw wrote: Try this shopping list.
1 x THCAD-5 (for 50:1 divider) or THCAD-10 for others,
1 x thcad-5 for ohmic sensing (Hypersensing)

Do you mean I need 2ea of the THCAD-5? I am using a Hypertherm Powermax 85

txtrone wrote:

rodw wrote: Try this shopping list.
1 x THCAD-5 (for 50:1 divider) or THCAD-10 for others,
1 x thcad-5 for ohmic sensing (Hypersensing)

Do you mean I need 2ea of the THCAD-5? I am using a Hypertherm Powermax 85

Yes. 50:1 will give a maximum scale of 250v to cover the useful cutting range but the THCAD-5 can handle 500v indefinitely for safety.

And also yes, grab the Mesa common connector you linked to. You can connect your 24V logic power + and - to the separate halves and then you can patch the power to wherever you need to for any inputs or outputs. It makes for a very compact design.

txtrone wrote:

rodw wrote: Try this shopping list.
1 x THCAD-5 (for 50:1 divider) or THCAD-10 for others,
1 x thcad-5 for ohmic sensing (Hypersensing)

Do you mean I need 2ea of the THCAD-5? I am using a Hypertherm Powermax 85

If you don’t mind taking it apart and switching it to 20:1, I’d use (and PCW recommended) that divider setting and a THCAD-10. It gives you 0-200v range where your max cutting voltage is somewhere around 150-170v. They all have the same 500v over voltage. So that combo gives the highest resolution.