Another Biesse Rover 322

ehb wrote:

This may take a moment Some descriptions are only in italien, most in german and italian. So I'm doing some translation, hopefully correctly.

If you get stuck, find the devices on the schematics. The schematics show every device in 4 different languages, including ENGLISH

So I've made a spreadsheet with all in- and outputs of the machine: 90 outputs, 72 inputs. That's quite something - still need to ponder which ones I'll definitely not use.

Question regarding solenoid switching: Will have to check the current requirements of the solenoids, but the 7i71 with 300 mA at max. 28 VDC doesn't cut it, right? I'm thinking about making "relais boards" with peak & hold drivers like the TI DRV120 ( www.ti.com/product/DRV120 ) to reduce power consumption and heat in the solenoids.

That's really not necessary. just need to put a relay on the output's.

I just found 25 of these in my stash of various industrial components I've accumulated over the years:
 
 

These are three channel 4.5...35 V / 2 A DC optocoupler transistor modules, " Murr 50043 ". Guess they should work, but I just found out they're 100 € a piece. Maybe I should sell them and buy something cheaper. image missing /media/kunena/emoticons/laughing.png

I've tried to comprehend the line-up of MESA products and this is what I came up with: Would this be the way to go?

 

That's close tp what I use. Dont forget to get a 5v din rail power supply and din rail brackets as shown in p[ic.

Also another alternative to relays for the solenoids you could use mosfets. Build boards with mosfets on them like in the pic. I use thes I made for pinball machine 48volt solenoids. just an option.