Fanuc A20B-0008-0470 Add Axis (RES) controller PCB for the Fanuc 6 control. This pcb allowed a 4th axis control on all the Fanuc 6 control system series, as well as resolver feedback, which was used on robots. This Fanuc board was fitted on the many version of the Fanuc 6 control system which interfaced with Fanuc DC velocity control unit namely the M series units 6047,. This board was fitted on 6, 6A, 6B, 6B2, 6M, 6MB, 6T, 6TB pre the coming of the Fanuc 10 series. DNC offer a full service for the A20B00080470 add axis resolver feedback controller board, including exchange to save money, testing and repair of the single axis peripheral board for the 6 control system. Surplus spares are stock dependent – Call for Prices – Warranty is 180 days !