Skip to product information
A20B-2101-0042 Front View

A20B-2101-0042 – FANUC Alpha iSV Servo Drive Control Board (3 Axis)

In stock
$525.00 USD
Fast and safe checkout via PayPal
Secure online payments with Visa
Accepted credit card payments through Mastercard
Online payments accepted via Discover card
Convenient and trusted payments via American Express

Shipping:

Reliable global express shipping by DHL
Worldwide parcel delivery by UPS
Fast and secure shipping by FedEx

Delivery: Estimated 2- 6 business days delivery. See details

Returns: 14 days returns. See details

All parts are covered by REACO CNC warranty

All parts are covered by REACO CNC warranty

Every part is carefully inspected and tested for reliability。

All parts tested under load

Global Delivery for Fanuc and Mitsubishi CNC parts

Fast response, global shipping, expedited shipping available

tech support for CNC repair and parts.

Free technical support

More than 150,000 parts in stock & ready for delivery

More than 100,000 parts in stock & ready for delivery

A20B-2101-0042 – FANUC Alpha iSV Servo Drive Control Board (3 Axis)

Brand FANUC
Model A20B-2101-0042
Handing time within 1-2 working days
Shipping Method DHL/UPS/FedEx
Estimated Delivery Time (via DHL)

Asia: 1-3 business days

Europe: 2-4 business days

North America: 2-4 business days

South America:  3-6 business days

Middle East & Africa: 3-6 business days

Oceania: 2-5 business days

Warranty NEW/Refurbished: 1-Year warranty
Used(90% New): 3-Month warranty
Category PCBs
Parameter Description A20B21010042
DISCONTINUED BY MANUFACTURER
PC ALPHA ISV DRIVE BOARD
DUAL CHANNEL
3 AXIS
Service Test video will be sent before delivery
Packing Cartons

 

The A20B-2101-0042 is a servo drive control PCB used in FANUC Alpha iSV drive systems for CNC machine tools.
Worldwide shipping, sales, replacement, and professional repair services are available for FANUC CNC circuit boards.

This board is designed with dual-channel architecture supporting up to three servo axes, providing reliable motion control communication between the CNC system and servo amplifiers. Stable servo control electronics are essential for accurate axis positioning, smooth motion control, and consistent machining performance.

The A20B-2101-0042 has been discontinued by the manufacturer, but it is still widely used in many existing FANUC CNC machines. When this board fails, machines may experience servo alarms, axis control faults, or communication errors within the drive system.

REACO CNC support customers worldwide with sourcing, replacement, and professional repair services for discontinued FANUC CNC electronic boards.

Product Details

Model: A20B-2101-0042
Type: CNC Circuit Board / Servo Drive Control PCB
Drive Type: Alpha iSV
Axis Support: 3 Axis
Channel Type: Dual Channel
Function: Servo drive communication and axis motion control
Application: FANUC CNC servo drive systems
Manufacturer: FANUC
Manufacturer Status: Discontinued

Applications

FANUC CNC machining centers
Servo drive control systems
CNC milling and turning machines
Industrial automation equipment

Sales & Support

CNC PCB board sales and replacement
Servo drive board inspection and repair services
Technical support for FANUC CNC systems
Worldwide shipping available

Warehouse shelves filled with boxed FANUC CNC parts, showing Reaco CNC’s large inventory for fast global delivery.

Over 100,000 CNC Parts in Stock

With an extensive inventory of FANUC and Mitsubishi components, we ensure fast delivery and reliable replacements — minimizing your downtime.

Shop now
Packaging process showing wooden crates for heavy items and reinforced double-layer cartons for standard products.

Fast Global Delivery

  • DHL, UPS, FedEx Global shipping.
  • Expedited shipping available
  • Packed in secure reinforced cartons for maximum protection during transport.
Technician operating FANUC CNC testing benches during system inspection and repair at REACO CNC.

Need Expert Assistance?

Our experienced engineers provide technical support for all FANUC and Mitsubishi CNC parts — including troubleshooting, installation guidance, and repair consultation.

Get in touch

Hot Selling FANUC Parts

View all