machine is a converted 12x36 lathe 2axis (xz)
mach turn
C11-G bob
2hp 3phase motor 3500rpm
hy series vfd =
http://www.ebay.com/itm/120705048710?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649my mach mill will run the motor fine with the same vfd.
the lathe vfd is set up 100% the same settings and seems to work fine.
i punch in the same motor tuning in turn and it is nothing like the mill.
i tryed this guys method and it kinda helped me tune it some.
http://www.machsupport.com/forum/index.php/topic,18580.0.htmlthe problem is i can get the top speed right on but it is not linear or correct at say half speed.
i am not sure on how to adjust the motor tuning to get the speed right or close thru out its range.
all of the spindle tuning parameters are very confusing to me.
i check the bob for 10v on full powert and it says 5v ish?
it seems i need some way to tune the pot on the bob and then start the spindle tuning.
i have a rpm tach on the spindle so i can see real rpm no problem.
any help is welcome. thanks