kestreltom wrote: > a friend of mine bought a Mycenter 0 with a Fanuc 0M controller and does not > have any schematics for the power supply, amps, main controller, etc. During > the > boot sequence, some of the internal boards light up their leds, but the > control > panel & crt never light up or come online. Perhaps the ps is not delivering > all > the voltages needed to boot all the way up?? > I don't know that vintage as well as the stuff that was on Roland's 2 machines. I think that machine is a generation newer, but still awfully old. Could easily be a PS problem, even just a tripped circuit breaker or loose connector. The 0M was fairly common, I think you probably could get a set of schematics for it. Be aware that there are MANY variants of the basic 0M system, so your docs would have to correspond to the right model. Are you sure you are powering all 3 phases? > It would be nice if we can repair the existing ps enough to use the machine > as > it is, but at what cost? He is trying to bootstrap himself into business, so > funds are limited. > Well, good luck, but I think these older machines can be pretty messy to keep running. Once they get about 20 years old, it is all downhill. >> I think you are right. I will look up the Mazak files and study them. >> I guess that has now become quite obsolete as Chris has gotten all this random toolchange working now. So, follow up with what he has done. > > This machine has a Fanuc controller, with Fanuc red cap AC servos. I don't > know > if it is possible to mate these to different amps, or if it is possible to > drive > the Fanuc amps using an analog reference or pwm from EMC2. Have you any > experience with this? > Just in time for haloweeen, good place for a BWAHhaaahaaa! I just happen to have a solution for these motors! I have a converter for the proprietary red cap commutation encoder that generates the traditional Hall signals. I have sent out the first set of these converters and brushless drives to a guy, but I dont think his machine if set up yet. But, I have a big red cap motor here for testing, and it works quite nicely. This is one of the 20 series motors, about 7" square and 10" long.
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