FANUC AC Servo Motor A06B-0235-B502 (AiS8/4000) General Description The A06B-0235-B502 is a high‑performance AC servo motor from FANUC’s Alpha i series, model AiS8/4000. It features a straight keyed shaft, 24 V DC holding brake, and an incremental encoder, designed for precise motion control with safe holding in CNC machine tools and industrial automation. Key Specifications Model: A06B-0235-B502 (AiS8/4000) Rated Power: 2.5 kW Rated Torque: 8 Nm Rated Speed: 4000 rpm Input Voltage: 3‑phase 200–240 V AC Rated Current: 11 A Encoder: A64iA incremental encoder (16,000 ppr) Shaft Type: Straight shaft with keyway Brake: 24 V DC electromagnetic holding brake Protection Class: IP65 Weight: Approx. 10.5 kg Features Compact high‑torque design for tight installations Integrated 24 V brake for static holding when power is off Smooth, low‑noise rotation for high‑precision positioning Rugged IP65 construction for industrial environments High‑resolution incremental encoder for accurate speed/position feedback Direct compatibility with FANUC 0i, 30i/31i/32i CNC systems Applications CNC machining centers, lathes, and grinding machines Automation axes requiring vertical/overhead load holding Industrial robot axes and high‑speed positioning systems Machine tool auxiliary axes with braking needs Installation & Operation Mount on a rigid, vibration‑free base Verify correct wiring for power, encoder, and 24 V brake Operate within 0–40°C ambient temperature and ≤80% RH (non‑condensing) Do not exceed rated voltage/current to avoid damage Periodically inspect bearings, encoder, and brake for reliability