The FANUC A20B-8200-0361 is a two-axis axis/display control card used in compatible FANUC Series 0i-C and 0i Mate-C CNC basic units. It handles digital servo-axis control and the FSSB communication path between the CNC and compatible servo amplifiers.

FANUC's detailed PCB table identifies this board as the 2-axis version with servo hardware ID 08 / 02 / 0x. A20B-8200-0360 is the related 4-axis version and must not be substituted solely because the boards appear similar.

A20B-8200-0361 Product Information

Two-Axis Servo and Display Control

Within the matching CNC basic unit, the A20B-8200-0361 supports the axis-control CPU, axis-control circuit, memory and FSSB control circuit. The assembly is listed by FANUC as an axis/display card, so correct operation depends on the main board, LCD inverter, software and complete hardware configuration.

Compatibility and Replacement Checks

Confirm the complete A20B-8200-0361 drawing number, PCB revision, CNC basic-unit number, controlled-axis count, main board, display size and connector layout. Do not replace it with A20B-8200-0360, A20B-3300-0393 or another similar FANUC card without confirming the machine's parts list and CNC configuration.

Testing and Installation

REACO CNC checks the label, PCB condition, connectors, power rails, startup status, display output and servo communication where the matching test platform permits. Back up CNC parameters, programs, offsets and PMC data before removal, isolate 24VDC power, and have qualified CNC personnel install the replacement.

Related resources: FANUC CNC PCBs, FANUC CNC controls and FANUC CNC repair services.