I posted last time in the fanuc area, not noticing the special 5/5T zone...
Special...My Ikegai FX20N (1978) failed during a cycle due to bad brushes on the traverse motor. I replaced the brushes, and restarted the lathe only to find battery alarms on the memory boards. During ur trouble shooting we must have knocked the wimpy plastic battery holders a bit and they stopped working. Fixed that, re-entered the parameters, and everything came back... except for the Spindle speed control!. S40 in MDI gets full speed...any other command gets the same. Weve never had this issue before. Could it be the tachogenerator mysteriously failed at the same time the Servo motor did? Hard to believe... Anyone with any thoughts on this? Weve run this machine for the past 9 years without any major issues (other than the typical stuff...)
Bruce