John Thornton wrote: > I'm not sure how close the 1400 is to my 1100M but in the right > cabinet is there 3 boards with a connector on top and one on the > bottom of each board? > > http://gnipsel.com/images/bp-knee-mill/bpel01.jpg > > That's all that's left in my cabinet is the drives and power supply. Hi Philipp, John, Thanks. Yes, that is all I figured I'd be left with are the H-dirvers and power supply. that stuff is on one panel. This is my board. Now that I've found this I'm thinking I should make an offer. <http://www.ebay.com/itm/Fenner-Servo-Dynamics-Servo-Amplifier-SDF1525-12-SDF152512-AS-IS-/151719664648?hash=item2353325c08:g:0xkAAOSwxYxU0lv4>
The boards were talked about here a couple of years ago <http://ehc.ac/p/emc/mailman/emc-users/?viewmonth=201308&page=8> found this: <http://www.industrialmanuals.com/servo-dynamics-142512-122017-servo-power-amplifiers-manual-1984-p-5186.php> but these guys want $55 for 38 pdf pages! This looks very similar <http://www.servodynamics.com/wp-content/uploads/2014/11/SDS1015-10_manual.pdf> Best I can tell the tach signals come back to those boards. I have the box wiring diagram, but it only talks colors and not much on functions of wires. The boards have lots of pots and op amps so I've always guessed velocity feedback was done on those boards. One is labeled 'TAC'. From the manual, (very limited info), I get a sense a specific velocity is expected per input signal volt. I'm starting to get an itch to take an oscilloscope to it while it is running some repetitive back and forth code. I will get as much as I can well documented before I disconnect the old logic. The motors do belt drive the screws at some 3 to 1. And I went back to re-read the Project Sheet Cake page: " Our servo motors have two types of feedback, an analog velocity, which is fed back to the servo amplifiers directly..." "The existing servo amplifiers are Anilam brand amps. TODO: Anilam part number here. We don't have ready specs on the amps, but since they work with the existing controller, they seem to be serviceable. They take in +/-10V for direction and speed, and they receive velocity feedback from the motors." ~~~ It sounds like our tasks are about identical just, that their encoders are shaft and mine are glass. Best, Dan. ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
