On Sat, 28 Apr 2012, Joe H wrote: > Date: Sat, 28 Apr 2012 22:33:28 -0400 > From: Joe H <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: [email protected] > Subject: [Emc-users] Mesa card help > > I'm in over my head, I have an old control I am hoping to be able to > upgrade with Mesa hardware and don't know were to start. The control is Mid > 80's 2 1/2 axis, with Glentek brushed DC servos and Glentek amps. I have > schematics and photos. I have learned that the amps output +- 10 volt > analog signals, the motors have tach's. The machine gets position form HEDS > encoders in track wheels on the x&y axis, and one on the z screw. > Peter from Mesa suggested 5i20 with 7i33 and 7i37 daughter cards, which I > have purchased. I plan on using Linux CNC in a Pentium 4 computer. > I'm hoping I can get pointed in the right direction, I am electronically > challenged. I can take more photos if needed. > Any one done one like this?
This looks very much like a lot of '80s machines people have retrofited with our hardware. BTW, you might get more responses to your question if you mentioned the actual machine name. If all the drives are OK, It should be fairly straighforward (having the drawings is very helpful) but there are a lot of details. I guess I would start by installing LinuxCNC on your intended target PC (download the LiveCD image and image-burn a CDR). The Getting Started Guide: http://www.linuxcnc.org/docs/EMC2_Getting_Started.pdf will help with this. If the target PC works OK and has decent latency ( better than about 50 usec is fine for this servo machine), a next step is to install the hardware (5I20 in PC, 7I33TA connects to 5I20 P2, 7I37 connects to 5I20 P3) I would decide at this point if you ever want to restore your old control. If you do you will need quite a bit more work with connectors to allow swapping controls. Beyond this I can try and guide you step by step in what I would do. and perhaps someone with a similar system will chime in. > > http://s1048.photobucket.com/albums/s375/JoeNoduh/ > ------------------------------------------------------------------------------ Peter Wallace Mesa Electronics ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
