Fanuc Servo Drive PCB A06B-6050-H005

The Fanuc A20B-1003-0090 is a single-axis servo drive PCB belonging to the S series of AC servo amplifier units, used with the Fanuc A06B-6058 series drives. This control board communicates via PWM and processes servo encoder feedback signals, providing digital axis control for CNC machine tools. It is compatible with Fanuc Series 0 Model B and C and Series 15 CNC controls, and supports operation with model 0S through 30S AC servo motors. The board is populated with multiple DIP integrated circuits, electrolytic capacitors, and passive components arranged on a green PCB. An isolation amplifier module, part number A76L-0300-0077, is mounted on the board surface. Connector designations CN1, CN2, CN5, and CN6 are silkscreened on the board, along with a terminal block labeled A through positions 1 through 8. Wiring harnesses are attached to the terminal block and connectors. The board is manufactured in Japan. This part number was fitted across seven different power sections of the S series drive platform and saw broad deployment in CNC machining centers, turning centers, and other machine tools running Fanuc digital servo systems.

Stock # 0226-613