A20B-8101-0790 FANUC Servo Amplifier Control Drive Board

The A20B-8101-0790 is a FANUC PC board / drive board, commonly described as a servo amplifier control PCB. It is used in compatible FANUC robot drive systems and is also described as a 6400 series drive board.

This model is an internal electronic board component for servo amplifier control and drive-related signal processing. It is not a complete servo amplifier or complete drive unit. This model 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 drive board 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-8101-0790 drive board is mainly used for FANUC robot drive system repair and maintenance. As a servo amplifier control PCB, it may be required when the original drive board is damaged, unstable, burnt, corroded, or causing servo amplifier control, drive communication, or robot motion-related faults.

Because this is a board-level component, replacement should be carried out after confirming the original board number, drive unit model, robot controller configuration, connector layout, and alarm details.

Quality Control and Testing

For FANUC drive boards and servo amplifier control PCBs, careful checking is very important before shipment because PCB condition may directly affect servo control, drive response, robot motion stability, alarm status, and repair success rate. 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 robot and 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-8101-0790. Similar FANUC drive boards may have different hardware versions, connector layouts, applicable drive models, robot controller compatibility, or software requirements.

If you are not sure whether this FANUC servo amplifier control drive board is suitable for your machine, please send photos of the original board label, full drive unit model, connector side photos, robot controller model, and alarm information. REACO CNC can help check the details before purchase.

FAQ

Q: What is A20B-8101-0790?

A20B-8101-0790 is a FANUC PC board / drive board, commonly described as a servo amplifier control PCB for compatible FANUC robot drive systems.

Q: Is A20B-8101-0790 a complete servo amplifier?

No. A20B-8101-0790 is a PCB / drive board component, not a complete servo amplifier or complete drive unit.

Q: Is A20B-8101-0790 discontinued?

Yes. This model is described as discontinued by manufacturer. Please confirm stock availability before ordering.

Q: What drive series is A20B-8101-0790 related to?

This model is described as a 6400 series drive board.

Q: Can this board be used for FANUC robot repair?

Yes. This board is described for FANUC robot applications and can be used for compatible robot drive repair after confirming the original board number and drive configuration.

Q: Can REACO CNC test this FANUC drive board before shipment?

Yes. REACO CNC tests or checks qualified drive boards before delivery. Product photos or a test video can be sent before shipment when required.

Q: What warranty does REACO CNC provide?

For new or refurbished products, REACO CNC usually provides a 1-year warranty. For used 90% new products, the warranty is usually 3 months. The final warranty term depends on the quotation and order condition.

Q: Can you help confirm compatibility before purchase?

Yes. Please send the original board photos, full board number, drive unit model, connector side photos, robot controller information, and alarm details. We will help check whether this model is suitable for your machine.

Q: Do you also provide FANUC drive board repair service?

Yes. REACO CNC provides FANUC drive board sales and repair support. If your original board is faulty, you can contact us for replacement or repair options.