1
Mach4 General Discussion / Re: Fanuc A20B-005-0374 DC spindle board wiring & settings
« on: April 18, 2021, 09:57:11 PM »
Okay a little update.
I found on some other forums general minimum required connections to satisfy the spindle drive so with jumper wires and an external speed reference voltage signal I got the spindle spinning Yesterday. Although occasionally every few minutes the spindle would decelerate and then accelerate back up to target speed randomly. Not sure what that was about yet but at least i think I have a working spindle drive so one less thing I do not have to purchase in the initial stages of bringing life back into this lathe.
BK
I found on some other forums general minimum required connections to satisfy the spindle drive so with jumper wires and an external speed reference voltage signal I got the spindle spinning Yesterday. Although occasionally every few minutes the spindle would decelerate and then accelerate back up to target speed randomly. Not sure what that was about yet but at least i think I have a working spindle drive so one less thing I do not have to purchase in the initial stages of bringing life back into this lathe.
BK