FANUC A06B Series Modules A06B-2115-B805 2007-T299A660-4005-T080 A97L-0218-088610ia Robot Two-Axis Speed Reducer

Technical Dossier

Product Details And Specifications

FANUC A06B Series Technical Notes

The Evolution of A06B Architecture

The A06B numbering convention was established by FANUC in the early 1980s as part of the FANUC AC Servo System architecture. The series has passed through four distinct generations. The first generation (A06B-0xxx) used analog velocity command interfaces and resolver feedback, compatible with FANUC Series 0 and Series 6 CNC controllers. The second generation introduced digital serial communication (FSSB — FANUC Serial Servo Bus) and transitioned to optical fiber links between the CNC and servo amplifier, covering the A06B-2xxx motor range paired with αSV and βSV amplifiers. The third generation (αi and βi series, mid-2000s) brought higher encoder resolution (1,000,000 pulse/rev on αi motors), integrated thermal protection, and compatibility with Series 30i/31i/32i controllers. The fourth and current generation adds functional safety (Dual Check Safety, DCS) and EtherCAT-based communication for integration with FANUC's CRX collaborative robot platform. Compatibility between generations is not automatic: A06B-2xxx motors with Ai encoders require αi-series amplifiers (A06B-6xxx); substituting earlier amplifier types will result in encoder communication faults. For robot-specific assemblies such as the A06B-2115-B805, the mechanical interface (flange pattern, shaft diameter, gear ratio) is robot-model-specific and is not interchangeable across robot families without engineering verification.

A06B Full Catalog & Functionalities (SKU List)

Servo Motors — αi Series

• A06B-2115-B805: αiF 22/3000 servo motor, 22 kW, 3000 rpm, flange-mount, robot axis drive
• A06B-2116-B805: αiF 30/2000 servo motor, 30 kW, 2000 rpm, heavy-duty robot J1/J2 axis
• A06B-2243-B100: αiS 4/4000 servo motor, 4 kW, 4000 rpm, standard flange, CNC axis
• A06B-2253-B100: αiS 8/3000 servo motor, 8 kW, 3000 rpm, high-inertia load axis
• A06B-2265-B100: αiS 22/1500 servo motor, 22 kW, 1500 rpm, large-frame CNC spindle assist
• A06B-2282-B100: αiS 40/2000 servo motor, 40 kW, 2000 rpm, heavy milling axis

Servo Motors — βi Series

• A06B-2075-B103: βiS 4/4000 servo motor, 4 kW, compact frame, general-purpose CNC
• A06B-2085-B103: βiS 8/3000 servo motor, 8 kW, mid-frame, lathe/machining center
• A06B-2047-B100: βiS 0.5/5000 servo motor, 500 W, 5000 rpm, small-axis positioning
• A06B-2063-B103: βiS 2/4000 servo motor, 2 kW, 4000 rpm, auxiliary axis drive

Robot Mechanical Drive Assemblies

• A06B-2115-B805 2007-T299A660-4005-T080 A97L-0218-0886/10ia: Two-axis speed reducer assembly, R-2000iB/M-710iC compatible, integrated grease port
• A06B-2120-B605: αiF 40/2000 motor with integrated brake, robot J3 axis assembly
• A06B-2130-B605: αiF 55/1500 motor assembly, large robot base axis (J1), with resolver backup

Encoder & Feedback Units

• A97L-0218-0886/10ia: Pulsecoder αA1000S, 1,000,000 pulse/rev, absolute serial encoder, robot-grade
• A860-2000-T301: Separate detector unit for αi pulsecoder, DIN-rail mount, CNC feedback
• A860-2020-T301: High-resolution absolute pulsecoder, 16-bit multi-turn, αi motor compatible

Amplifier Modules (A06B-6xxx — paired with above motors)

• A06B-6140-H006: αi SV 6A servo amplifier, single-axis, FSSB interface
• A06B-6141-H015: αi SV 15A servo amplifier, single-axis, 200 VAC input
• A06B-6160-H002: αi SV 2A servo amplifier, compact, βi motor compatible