A20B-2002-0310 FANUC Spindle Motor Sensor Card MZ-Sensor Unit

The A20B-2002-0310 is a FANUC PC board, commonly described as a spindle motor sensor card or MZ-sensor unit PCB. It is used in compatible FANUC CNC spindle motor feedback or sensor-related applications, depending on the original spindle motor and machine configuration.

This model is supplied as a FANUC spindle motor sensor card / sensor unit PCB, not a complete spindle motor, complete spindle amplifier, or complete CNC system. It is also listed as discontinued by manufacturer, so stock availability should be confirmed before ordering.

Worldwide Shipping & REACO CNC Service

• Worldwide Shipping: We can ship worldwide by DHL, UPS, FedEx, or other available logistics channels.
• Fast Handling: In-stock items can usually be shipped within 1-2 working days after payment.
• 100% Tested Before Delivery: Each qualified sensor card is tested or checked before shipment. Product photos or a test video can be sent before delivery when required.
• REACO Warranty: New or refurbished products usually include a 1-year warranty, and used 90% new products usually include a 3-month warranty.
• Free Technical Support: Our team can help with basic model confirmation, board matching, and replacement guidance.

Product Information

Product Application

The FANUC A20B-2002-0310 spindle motor sensor card is mainly used for compatible FANUC CNC spindle motor sensor or feedback applications. It may be required when the original sensor card is damaged, unstable, corroded, burnt, or causing spindle feedback, speed detection, orientation, or sensor-related alarm problems.

Because this is a board-level sensor component, replacement should be carried out after confirming the original board number, spindle motor model, sensor unit reference, connector layout, spindle amplifier model, CNC system model, and alarm information.

Quality Control and Testing

For FANUC spindle motor sensor cards, careful checking is very important before shipment because sensor board condition may directly affect spindle feedback, speed detection, spindle orientation, motor control stability, and machine operation. REACO CNC checks qualified products carefully and can provide real product photos or a test video before delivery when required.

Our goal is to help customers receive reliable FANUC CNC spare parts with clear product information, careful inspection, responsive after-sales support, and practical technical assistance.

Compatibility Confirmation

Before ordering, please confirm that the full board number on your original PCB is A20B-2002-0310. Similar FANUC spindle motor sensor boards may have different connector layouts, motor compatibility, sensor unit references, hardware versions, or spindle system requirements.

Please also check the related reference A290-0854-V330 if it appears on your original sensor unit. If you are not sure whether this FANUC MZ-sensor unit PCB is suitable for your machine, please send photos of the original board label, spindle motor nameplate, connector side photos, spindle amplifier model, CNC system model, and alarm details. REACO CNC can help check the details before purchase.