O.k. guys, Now I really feel like an idiot.....lol You guys are freaking serious about this.... I "assumed" I would get a little encouragement, but I guess I "under-assumed" the levels of commitment to success that is apparent and really kind-a awesome. So, from here out I will try to be more open with the sharing of my road blocks and the likes. Here goes:
The old (1987) Centroid contoller I have is called a CNC-3. Model number CNC-3-B24-MS3 The control box (approx 2 cubic feet in size) is only half of the system, the other half is a computer program running on DOS. (True DOS) There are 6 IC Cards within the box. One is a communication card with the RS232. It has 3 header plugs, 4 EProms and a battery backup which has long since given up the ghost. The only writting on this board is" CPU3 REV870830, Copyright 1987, Centroid Corp, State College PA" I would consider this the mother board of the system. Another card is an I/O card and is basically used to control external relays which would turn on things like coolant, air, spindle, clamps and the likes. It has 2 header plugs. The only writting on this card is "Centroid InputG, REV 880111" Then there are the three axis cards and the only writting on these cards is "Chop2 Rev 880615, copyright Centroid, State College, PA" I have the header pin out for each of the 2 header on this card. The last card is a power supply card. It is fed from the 40V power supply and puts out 40V for the bipolar stepper motors, 12V for I/O card and other front panel buttons and 5V for the system. The back panel of the box indicates that the power supply is 800W The stepper motors are thought to be MAE motors. I have gone to MAE web site and I can't find the motors. No surprise there, they are over 20 years old. But I think they are either 2 or 3 amp motors. The MS3 in the model number makes me think 3 amp motors. These motors have 4 wires feeding them red, green, black and white. They are 6.5 ohm across the two fields. The physical size of the motors are 3.5" in diameter and 4" long with an output shaft out the face and back. If you give me about a half hour, (it's now 10pm est) I will post pictures of each card front and back on my blog. I have 3 or so PDF files which describe the pin out config. I can not post pdf files on my blog, but I will be happy to send them to you in a .zip file if you wish or one at a time, what ever works. Stepper motors use step, direction and enable. Chop drives use pulse, pulse, pulse, pulse. That 4 pulse signal is fed into the drive cards. For me, this is a pretty intense learning experience. I know I am in over my head, although some things I do understand. And if this can get converted over, that's great, but I want to learn how and why, in the process. So, Thanks in advance for your help and patients. Thanks guys. Martin ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
