The FANUC A20B-1001-0120 is an industrial-grade, high-performance Digital AC Spindle Drive Control Board (PCB). Serving as the primary command-logic top card, this multi-layer board is designed to mount directly onto FANUC A06B-6055-Hxxx series AC Spindle Drive Units. The PCB processes digital command signals from the host CNC controller to regulate velocity loops, orientation, and deceleration braking profiles for primary electric spindle motors, managing critical operational conditions through distinct onboard alarm diagnostics (such as AL-07 Excessive Speed or AL-08 High Input Voltage). [stock available]