Hello Guest it is June 16, 2019, 03:39:01 AM

Author Topic: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"  (Read 22366 times)

0 Members and 1 Guest are viewing this topic.

Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« on: November 21, 2012, 07:19:50 PM »
Hi, I have Mitsubishi servo's and drives, the drives are MR-J2S. Do I need a motion controller or just a breakout board to get this up and running? I want to use Mach 3 and have been confused by alot of "advice". Thank you for any assistance you can provide me with the wiring, and other hardware needed.
" I'm not crazy, but may be a carrier"

Offline Hood

*
  •  25,843 25,843
  • Carnoustie, Scotland
    • View Profile
Re: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« Reply #1 on: November 22, 2012, 03:11:00 AM »
You could use them with the PP via a breakout but there are a few drawbacks.
1. The step/dir input will almost certainly be differential capable. You may be able to connect single ended but in my opinion you should use differential if at all possible.
2. I/O of the drives will likely be 12-30v so interfacing with the PP would require relays or similar.
3. Encoders will likely be 2000- 2500 count so you would need to use electronic gearing in the drives to get reasonable rapids, that however will lose you resolution and if a high value of gearing is used there is a possibility of cogging at very low revs.

Personally I would look at some of the available controllers, my choic3e would be the ones from CS-Lab as they are geared more towards industrial end control having 24v I/O, Differential Step/Dir, Index Homing capability, Analogue I/O etc.

Hood

Offline BR549

*
  •  6,871 6,871
    • View Profile
Re: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« Reply #2 on: November 22, 2012, 11:51:19 AM »
The Manual should tell you everything you need to know. Give it a read.

Just a thought, (;-) TP
Re: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« Reply #3 on: November 23, 2012, 01:11:36 PM »
I have read the manual, several times, Unfortunately I do not have the knowledge (yet) to decipher it.
I have come to the conclussion that it needs -10v to +10v in the speed mode or -8v to +8v in the torgue mode. How do I supply the signal ?
" I'm not crazy, but may be a carrier"

Offline Hood

*
  •  25,843 25,843
  • Carnoustie, Scotland
    • View Profile
Re: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« Reply #4 on: November 23, 2012, 01:24:31 PM »
The drives should accept Step/Dir unless I am mistaken.
Hood

Offline Hood

*
  •  25,843 25,843
  • Carnoustie, Scotland
    • View Profile
Re: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« Reply #5 on: November 23, 2012, 01:28:07 PM »
Just had a look at the manual for the drives that I have here and it says they will accept Step/Dir or as they call it Pulse Train + Sign. See pic.
Hood

Offline Hood

*
  •  25,843 25,843
  • Carnoustie, Scotland
    • View Profile
Re: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« Reply #7 on: November 23, 2012, 01:33:08 PM »
Please look at my last post ;)
Hood
Re: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« Reply #8 on: November 23, 2012, 01:33:34 PM »
You were one step ahead of me.. thanks,  so, does this mean I can use any breakout board to achieve this?
Any preferance on BOBs' ?
" I'm not crazy, but may be a carrier"

Offline Hood

*
  •  25,843 25,843
  • Carnoustie, Scotland
    • View Profile
Re: Please help W/ Mitsubishi MR-J2S and MACH 3 "PLEASE"
« Reply #9 on: November 23, 2012, 01:34:58 PM »
Ok hang on a minute, you say its the S version in your post but link to the A manual, A I think means Analogue where S means its capable of position. Which do you have?
Hood