A860-2000-T301 aiA1000 Absolute Pulse Coder Encoder for Alpha i Servo Motors

High-resolution motor-mounted optical pulse coder for Alpha i servo systems requiring the A860-2000-T301 / αiA1000 absolute-feedback configuration. This encoder provides 1,000,000 divisions per motor revolution and supplies position, velocity, and alarm feedback through a keyed 10-pin serial interface.

What’s Included

• One A860-2000-T301 pulse coder encoder

Servo motor, encoder cable, motor cover, Oldham coupling, O-ring, mounting hardware, and backup battery are not included unless shown.

Technical Specifications

• Primary Part Number: A860-2000-T301
• Part Number Without Hyphens: A8602000T301
• Product Series: A860-2000
• Pulse Coder Designation: αiA1000 / α1000iA
• Part Type: Motor-mounted optical pulse coder / servo feedback encoder
• Encoder Type: Absolute
• Resolution: 1,000,000 divisions per motor revolution
• Feedback Functions: Position feedback, velocity feedback, and encoder alarm reporting
• Signal Interface: Serial pulse coder feedback
• Encoder Receptacle: JN2AS10UL1-R
• Connector Type: Keyed 10-contact circular encoder receptacle
• Signal / Power Pinout: RD pin 6, *RD pin 5, +5V pins 8 and 9, 0V pins 7 and 10, FG pin 3, and +6V pin 4
• Mounting Location: Rear of compatible Alpha i servo motor
• Mounting Method: Four M4 hexagonal socket-head fasteners
• Mechanical Interface: Oldham-type coupling
• Position Retention: Battery-backed through the compatible CNC or servo-amplifier system
• Backup Capacitor: Maintains absolute-position detection for approximately 10 minutes during supported battery replacement procedures
• Motor Configuration: Alpha i motor configurations using αiA1000 pulse coder selection code 0
• Protection Configuration: Standard T301 version for applicable standard motor configurations
• Connector Protection: Encoder connector is water-resistant when fully engaged with the correct mating cable connector
• Host Motor Ambient Temperature: 0°C to 40°C
• Host Motor Humidity: Up to 80% RH without condensation
• Installed Vibration Limit: Up to 5G
• Application Type: CNC machine tools, feed axes, automated machinery, and industrial servo motion-control systems

Interchangeable / Replacement Part Numbers

A860-2000-T301, A8602000T301

⭐ Compatible Encoder Cables

Choose the cable length and motor-side connector orientation required by the installation. Both cables use the matching keyed 10-pin pulse-coder mating interface and are sold separately.

5-Meter / 16.4-Foot Straight Connector Cable:
A660-2005-T506 5M Encoder Cable for A860-2000-T301

15-Meter / 49-Foot Right-Angle Connector Cable:
A660-2005-T505 15M Encoder Feedback Cable for A860-2000-T301

The T505 and T506 cable families use the same encoder mating connection and electrical interface. The motor-side cable exit orientation differs, so confirm routing space and the controller-side connection before ordering.

✅ Confirmed Compatibility

The A06B base number alone does not confirm compatibility because each motor family was offered with multiple pulse-coder and environmental configurations. The complete motor ordering number must specify the αiA1000 absolute pulse coder, identified by pulse-coder selection code 0. Standard A860-2000-T301 applications should not be confused with IP67 #0100 motor configurations or other encoder suffixes.

✔️ Alpha iS 200V Servo Motor Families: αiS 2/5000 (A06B-0212), αiS 2/6000 (A06B-0218), αiS 4/5000 (A06B-0215), αiS 4/6000 (A06B-0210), αiS 8/4000 (A06B-0235), αiS 8/6000 (A06B-0232), αiS 12/4000 (A06B-0238), αiS 12/6000 (A06B-0230), αiS 22/4000 (A06B-0265), αiS 22/6000 (A06B-0262), αiS 30/4000 (A06B-0268), αiS 40/4000 (A06B-0272), αiS 50/2000 (A06B-0042), αiS 60/2000 (A06B-0044), αiS 50/3000 with fan (A06B-0275), αiS 60/3000 with fan (A06B-0278), αiS 100/2500 (A06B-0285), αiS 200/2500 (A06B-0288), αiS 300/2000 (A06B-0292), and αiS 500/2000 (A06B-0295)

✔️ Alpha iS 400V HV Servo Motor Families: αiS 2/5000 HV (A06B-0213), αiS 2/6000 HV (A06B-0219), αiS 4/5000 HV (A06B-0216), αiS 4/6000 HV (A06B-0214), αiS 8/4000 HV (A06B-0236), αiS 8/6000 HV (A06B-0233), αiS 12/4000 HV (A06B-0239), αiS 12/6000 HV (A06B-0237), αiS 22/4000 HV (A06B-0266), αiS 22/6000 HV (A06B-0263), αiS 30/4000 HV (A06B-0269), αiS 40/4000 HV (A06B-0273), αiS 50/2000 HV (A06B-0043), αiS 60/2000 HV (A06B-0045), αiS 50/3000 HV with fan (A06B-0276), αiS 60/3000 HV with fan (A06B-0279), αiS 100/2500 HV (A06B-0286), αiS 200/2500 HV (A06B-0289), αiS 300/2000 HV (A06B-0293), αiS 300/3000 HV (A06B-0290), αiS 500/2000 HV (A06B-0296), αiS 500/3000 HV (A06B-0297), αiS 1000/2000 HV (A06B-0098), αiS 1000/3000 HV (A06B-0099), αiS 2000/2000 HV (A06B-0091), and αiS 3000/2000 HV (A06B-0092)

✔️ Alpha iF 200V Servo Motor Families: αiF 1/5000 (A06B-0202), αiF 2/5000 (A06B-0205), αiF 4/4000 (A06B-0223), αiF 8/3000 (A06B-0227), αiF 12/3000 (A06B-0243), αiF 22/3000 (A06B-0247), αiF 30/3000 (A06B-0253), and αiF 40/3000 (A06B-0257)

✔️ Alpha iF 400V HV Servo Motor Families: αiF 4/4000 HV (A06B-0225), αiF 8/3000 HV (A06B-0229), αiF 12/3000 HV (A06B-0245), and αiF 22/3000 HV (A06B-0249)

☑️ Key Features

☑️ High-resolution absolute servo feedback with 1,000,000 divisions per revolution
☑️ Detects motor position and velocity for precise closed-loop motion control
☑️ Reports encoder alarm information to the compatible control system
☑️ Keyed 10-contact serial pulse-coder interface
☑️ Battery-backed absolute-position operation on compatible systems
☑️ Approximately 10 minutes of capacitor backup during supported battery replacement
☑️ Rear motor-mounted design using an Oldham coupling
☑️ Supports applicable Alpha iS and Alpha iF servo motor configurations
☑️ Compatible 5-meter and 15-meter encoder cables available separately
☑️ Suitable for replacing a failed encoder causing feedback, communication, count, phase, or position-related faults

⚙️ Fit Notes

✓ Match the exact installed part number A860-2000-T301. Do not automatically substitute A860-2000-T321, A860-2000-T351, A860-2001-T301, A860-2005-T301, or other visually similar encoders.
✓ Confirm the complete A06B motor ordering number specifies the αiA1000 absolute pulse coder selection code 0. The motor-family name or A06B base number alone is not sufficient.
✓ The 5-meter T506 cable uses a straight motor-side shell, while the 15-meter T505 cable uses a right-angle shell. Both have the matching encoder interface, but routing clearance and the opposite connector must be verified.
✓ Installation requires the correct Oldham coupling orientation, an undamaged O-ring, and four M4 fasteners. Do not loosen the nearby M3 encoder-cover screws.
✓ Follow the machine’s pulse-coder replacement and zero-point procedure. If absolute-position backup is lost or a zero-battery alarm occurs, reference-position return may be required.