On 03/01/2017 04:40 PM, Steve from Tube Gauge wrote: > <head> > <title></title> > </head> > <body> > <div class="userStyles" style=" font-family: Arial; font-size: 12pt; color: > #000000;">Hi, I have a 1988 First CNC mill that I am considering > retrofitting to accept LinuxCNC. The motors are Fanuc red cap with > 10000 ppr. How long will these encoders last? They are all ready > 29 years old. I have other machines with dying encoders and linear > scales and it usually starts with the marker pulse. I just wonder if > money is better spent on new normal encoders rather conversion systems to > work with the old Fanuc stuff. That being said, sometimes the newer > stuff is less durable than the old components. The Fanuc red cap encoders are VERY well built. If you don't drop them, or get coolant inside them, they should last practically forever.
OK, the 10000 count ones are from the earlier series, before they went to the serial type. I have several of those here, and they are still going strong. The 10000 line encoders provide 40,000 quadrature counts/rev, and they have the commutation signals also (which do need a converter). You'd need to machine a mechanical adaptor for other encoders, and then get them phased to the motor windings. Jon ------------------------------------------------------------------------------ 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
