Just found out the Yaskawa/Safronics spindle drive in myThree J425 is toast. Has anyone replaced any of the old Yaskawa’s with a newMitsubishi, Hitachi or any other brand? Machine build 1993 with a Delta 20Dynapath/Autocon control.

Old drive is Yaskawa 616G3, with 10HP rating. The Motor isalso Yaskawa but 7.5HP or 5.5/3.9KW. Do I need a 10HP drive or will a 7.5HPdrive do? Looking at the schematics, it does not appear that the motor has anencoder feedback.

I’m electronically challenged, however I have agood friend that works pretty well with drives, PLC’s and such.