1. GENERAL INFORMATION

• Part Number: A86L-0027-0001#102

• Manufacturer: FANUC LTD / Kuroda Precision (PULCEN series)

• Type: Incremental spindle encoder (spindle coder)

• Description: 4000 RPM spindle coder with 68° flange, 1024 PPR

• Weight: Approx. 1.0 kg

• Application: FANUC CNC spindle feedback (0i / 16i / 18i / 21i series)

• Replacement: Superseded by A860-0309-T302

2. SPECIFICATIONS

2.1 Mechanical

• Max Speed: 4,000 RPM

• Resolution: 1024 pulses per revolution (PPR)

• Flange Angle: 68° mounting flange

• Shaft Diameter: 15 mm

• Starting Torque: ≤ 1,000 g·cm

• Input Inertia: ≤ 1.0×10⁻³ kg·cm·s²

• Permissible Loads:

  • Radial: ≤ 1 kg (operation), ≤ 20 kg (idle)

  • Thrust: ≤ 1 kg (operation), ≤ 10 kg (idle)

2.2 Electrical

• Power Supply: 5 VDC ±5%

• Current Draw: ≤ 100 mA

• Output Signals: A, B, Z (incremental) + complements

• Connector: 17‑pin round connector

• Insulation Resistance: ≥ 50 MΩ (500 VDC)

2.3 Environmental

• Operating Temp: 0°C to +55°C

• Storage Temp: −20°C to +70°C

• Humidity: 20%–85% RH, non‑condensing

• Protection Class: IP20 (dust protected)

3. COMPATIBILITY

• CNC Systems:

  • FANUC Series 0i‑A / 0i‑B / 0i‑D

  • FANUC Series 16i / 18i / 21i

  • FANUC Series 15i / 150i

• Spindle Motors: FANUC α / β series spindle motors (68° flange interface)

4. FEATURES

• High resolution: 1024 PPR for precise speed/position feedback

• 68° flange: Direct mount to FANUC spindle motors

• Compact & rugged: Industrial‑grade construction for machine tool environments

• Standard 17‑pin interface: Plug‑and‑play with FANUC CNC systems

• Long life: Designed for continuous spindle operation up to 4,000 RPM

5. INSTALLATION

1. Power OFF: Disconnect CNC and spindle power.

2. Align Flange: Match 68° flange to spindle motor mounting face.

3. Secure Encoder: Fasten with 4×M5 screws (torque: 2.5–3.0 N·m).

4. Connect Shaft: Couple encoder shaft to spindle shaft (15 mm diameter).

5. Wire Connector: Attach 17‑pin cable to CNC spindle feedback port.

6. Set Parameters: Configure CNC for 1024 PPR, 4000 RPM max.

7. Test: Run spindle at low speed; verify stable speed/position feedback.

6. MAINTENANCE & TROUBLESHOOTING

• Maintenance:

  • Keep encoder clean; avoid oil/dust ingress.

  • Check connector tightness quarterly.

  • Verify shaft coupling for wear annually.

• Common Issues:

  • No signal: Check 5 VDC supply; inspect 17‑pin connector.

  • Intermittent signal: Clean connector contacts; check cable for damage.

  • Speed fluctuation: Verify shaft coupling alignment; check encoder mounting torque.

  • Overspeed error: Confirm max RPM parameter (4000); check for mechanical binding.

7. ORDERING INFORMATION

• Model: A86L-0027-0001#102

• Description: SPINDLE ENCODER, 4000 RPM, 1024 PPR, 68° FLANGE, 17‑PIN