A06B-0123-B084#E000 Fanuc AC Servo Motor Model Alpha 3/3000 Serial Encoder

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The FANUC A06B-0123-B084-E000 is an AC servo motor from the FANUC Alpha series, designed for precise feed axis control on CNC machine tools. The Alpha 3/3000 configuration features an integrated serial encoder, providing accurate position feedback and smooth speed control when used with a compatible FANUC servo amplifier.

This motor is commonly installed on X, Y, and Z axes of machining centers, CNC lathes, transfer equipment, and automated systems requiring reliable and accurate motion control. Its 3000 rpm rated speed makes it suitable for rapid feed applications while maintaining excellent low-speed performance for contouring, threading, and precision machining operations.

The A06B-0123-B084-E000 incorporates FANUC’s serial feedback technology, allowing direct communication with the servo amplifier for simplified wiring and optimized system integration. This design ensures accurate position control, stable operation, and compatibility with FANUC CNC systems, including many installations based on the 0i, 16i, and 18i control platforms.

Key specifications include a continuous output power of 0.9 kW, a rated current of 4.6 A, an operating voltage of 127 V, and a frequency of 200 Hz. Manufactured in Japan, the motor benefits from the proven reliability and long service life associated with the FANUC Alpha product range.

The A06B-0123-B084-E000 is frequently selected as a replacement motor when the original unit develops encoder faults, bearing wear, winding failures, or positioning errors that generate servo alarms and machine downtime. When the complete part number and mechanical configuration match the original installation, it can be installed with minimal drive parameter adjustments, allowing a fast return to production.

With its precision, durability, and broad installed base in CNC applications, the FANUC A06B-0123-B084-E000 remains a dependable solution for machine maintenance, retrofit projects, and spare-part inventory management in FANUC-controlled manufacturing environments.

Frequently asked questions about A06B-0123-B084-E000:

Is this motor a drop in replacement for an existing FANUC Alpha 3/3000 axis?
Yes when the full code on the nameplate matches and the connected servo amplifier supports the serial encoder format. Always compare the mechanical variant and connector orientation before scheduling the swap.

Which drives typically work with this serial encoder model?
It is designed for FANUC Alpha series servo amplifiers that use FANUC serial feedback. Confirm amplifier type and software level against your machine documentation.

What should be checked before installation on a CNC machine?
Match the motor code, verify shaft and mounting details, check encoder cabling and grounding, and record original drive parameters. After installation run axis reference and verify thermal and vibration behavior under normal load.

Can this be supplied as a refurbished unit for urgent maintenance needs?
Depending on availability it can be provided as a refurbished unit or as part of an exchange service. Contact us for current lead time and repair turnaround.