Hello My name is Danny Drinan,

I'm having this randomly occurring problem with my Fadal 88hs, When I set a spindle speed using the M3S command sometimes it will randomly give me a spindle speed way less than what I input such as ( M3S1500 outputting only 200 rpm ) It usually doesn't matter what speed RPM you input , once it starts doing it you will continue to get the same speed no matter what until you return to home position and restart the machine. It does it maybe once every three times or so when you use the machine during the day. My spindle speed adjustment knob is always set to 100% and i only really use it during the machining process. Does anyone have any ideas?