A06B-0114-B203
May 13, 2026

A06B-0114-B203

FANUC AC Servo Motor Model: A06B-0114-B203 Specification & Instruction Manual (English Version, Text Only) 1. General Information Model Number: A06B-0114-B203 Manufacturer: FANUC Corporation Product Type: AC Permanent Magnet Synchronous Servo Motor Series: BiS0.4/5000 (αiS Series) Shaft Type: Straight shaft with keyway Holding Brake: Without electromagnetic holding brake Built-in Encoder: B64iA (αiA) incremental encoder, 64,000 ppr Protection Class: IP65 (dust-tight, splash-proof) Cooling Method: Natural air cooling, fanless Mounting Type: Flange mounting Net Weight: Approx. 1.2 kg

Description

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  • Net Weight: Approx. 1.2 kg

2. Electrical Specifications

  • Rated Voltage: 200–240 VAC, 3-phase, 50/60 Hz

  • Rated Output Power: 0.4 kW

  • Rated Torque: 0.65 N·m

  • Rated Speed: 5000 RPM

  • Max Continuous Speed: 5000 RPM

  • Rated Current: 2.0 A

  • Peak Torque: 1.95 N·m (short duration)

  • Insulation Class: F (155°C)

  • Back-EMF Constant: 4 V

  • Winding Resistance: 0.55 Ω

3. Mechanical Specifications

  • Rotor: Low inertia, high dynamic response

  • Bearings: Sealed, lifetime pre-lubricated

  • Noise: ≤ 70 dB(A) at rated speed

  • Shaft: Straight with keyway, heavy-duty seal

  • Rotation: Standard counterclockwise (shaft end view)

  • Vibration Resistance: 0.5g (10–100 Hz)

4. Environmental Conditions

  • Operating Temp: 0°C to +40°C

  • Storage Temp: -20°C to +60°C

  • Humidity: 40%–80% RH, non-condensing

  • Altitude: ≤ 1000 m

  • Environment: IP65-rated for coolant splash, oil mist, and dust; suitable for machine tool and harsh automation environments

5. Key Features

  1. IP65 Sealed Construction: Withstands coolant, chips, and dust for reliable operation in machine tool environments。

  2. High-Speed Performance: 5000 RPM rated speed for high-cycle, high-throughput applications。

  3. High-Resolution Encoder: 64,000 ppr B64iA encoder delivers precise positioning and smooth low-speed control。

  4. Compact & Lightweight: 1.2 kg design saves space and supports high dynamic motion。

  5. Straight Keyed Shaft: Compatible with standard couplings for easy installation and reliable torque transmission。

  6. Brushless & Maintenance-Free: No carbon brushes; sealed bearings require no lubrication。

  7. Fanless Cooling: High reliability, low noise, and reduced contamination risk。

6. Applications

  • CNC machine tools (milling, drilling, tapping, grinding)

  • Industrial automation: high-speed pick-and-place, dispensing, assembly

  • Precision rotary axes, indexing tables, and light-load feed axes

  • Machine tool axes exposed to coolant and chips

  • High-speed, high-response positioning in harsh industrial environments

7. Installation Guidelines

  1. Mount on a rigid, flat surface to minimize resonance and mechanical deformation。

  2. Align motor and load shafts precisely to reduce vibration and premature bearing wear。

  3. Use shielded power and encoder cables; separate power and signal wiring to reduce EMI。

  4. Provide adequate ventilation; do not cover or block the motor housing。

  5. Avoid shock, dropping, or extrusion during handling to protect the encoder and bearings。

  6. IP65 rating allows use in coolant splash and oily environments; ensure cable entries are properly sealed。

8. Maintenance Instructions

  1. Periodically check for abnormal noise, vibration, or overheating。

  2. Keep the motor surface clean of dust, chips, and oil。

  3. Sealed bearings are maintenance-free under normal operating conditions。

  4. Inspect encoder cables and connectors for tightness or damage。

  5. Avoid continuous overload and frequent rapid reversing beyond rated parameters。

  6. Verify seal integrity periodically to maintain IP65 protection。

9. Safety Precautions

  1. Disconnect all 200–240 VAC power before installation, wiring, or maintenance; wait ≥15 minutes for capacitor discharge to prevent electric shock。

  2. Do not touch the rotating shaft or moving parts during operation。

  3. This motor has no holding brake; do not use for vertical or suspended loads without additional mechanical locking。

  4. Do not disassemble the motor or encoder; unauthorized disassembly voids the warranty and damages precision components。

  5. IP65 does not permit submersion; avoid direct high-pressure water spray。

10. Troubleshooting

  • Motor does not run: Check 3-phase power, wiring, servo alarms, enable signal。

  • Abnormal noise/vibration: Check mounting rigidity, coupling alignment, bearings, mechanical jamming。

  • Overheating: Check overload, ambient temperature, blocked ventilation。

  • Position error excessive: Check encoder cable, connectors, servo parameters, mechanical backlash。

  • Unstable speed: Check voltage fluctuation, load variation, encoder interference。

  • Water/coolant ingress: Check seal damage, cable entry sealing, environment exceeding IP65 limits。


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