Hi everyone
I have a Shibaura VMC-4 (made by Toshiba circa 1981) machining center with
a Tosnuc 520M control. we had a problem with the spindle drive and replaced
the 12 transistors (2sd646a) and with the machine being powered down for months we had to reinstall the parameters.it worked ok for a few days apart from the spindle struggling to start, but now we have an error message of "current over" code 8-11 and a red light on the spindle drive board.could it be that we made a mistake with the parameters?
can anyone help? or put me in touch with someone who has worked on these machines
thanks
brian