On Thu, May 24, 2018, 23:45 Gene Heskett <[email protected]> wrote:
> On Thursday 24 May 2018 21:58:31 jeremy youngs wrote: > > > Sorry, autocorrect, > > > > Heds 8950 encoder > > Its not an Omron then? I have used one before, in a project for the tv > station, never gave a hint of trouble. But I know nothing about a HED > 8950. I'll see if I can find something about it on the web. > > Looks like it may be an obsoleted model. Or, less of a chance, too new > for their catalog. It is not listed on the makers site. So my best idea > is to get an Omron from Ebay. A dollar or so more than a $20 bill, > maybe $25 with shipping from someplace in the USA. > Obsolete for sure, these are ametek tape drive motors , had a friend in Syracuse that had a 40000 square foot electronics recycling center I got these from . Probably twenty to thirty years old. I'm searching for a 5/8 hole replacement now, I found some cui at mouser but we have had weather and my internet here in the Ozarks is almost non existent. > > > > The 7i42TA's are that. Limiting the current to a value below the > > > failure of the gates in the fpga on the 7i90HD. IF you are feeding > > > them 5 volts. > > > > > > What diode are you referring to? > > > > The led that drives the optical encoder. It does not pass a diode > > check and > > > > > I am no longer able to see voltage changes on the a and b encoder > > > wires. So I figure I over currented the led . > > > Thats what warranties are for. If you only fed it 5 volts on the red > wire, and it has now failed, its duff, send it back. > I'm sure there is no warranty on these freebies. > > OTOH, if its NOS and died, its a good chance the next one will be the > same age and well up the far end of the famous bathtub curve. I'd vote > with my card, and get the Omron. > > Mounting is my biggest issue with this, and if I do I may as well get six > as that's eventually what will be needed. The good news is my shop is about > to be overloaded with Broken cars and we'll off customers, the bad , once > it starts next week I won't look up for a month, then some concrete to pour > and machine parts to buy, yep time and money, the two are mutually > exclusive to the working stiff. > > Oh, and if somebody is taking up a collection to round up this Murphy > guy... It sucks just when progress was being made. > Was able to verify pwm output with my radio shack multi meter with frequency counter, so while Murphy has stopped one thing , now it is to build an isolation supply and put these 28 volt 28 amp DC DC converters together and make the generic h bridge run these motors, and outfit all of the control works to an atx case I have laying around and gut the nema case that formerly housed stepper drives and control system. How long is tool long for this 50 pin cables? I understand the shortest the better but 2 foot would be great or would it be better to extend the db25 cable? Probably that one as it's only one cable. > > Take care, Jeremy. > Always, and you too Gene. > > -- > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
