F-4050-Q-H00AA
The F-4050-Q-H00AA is a medium‑inertia brushless AC servo motor from Allen‑Bradley (Rockwell Automation) F‑Series, designed for the 1398 Ultra series servo drives. It delivers high torque density, smooth dynamic response, and robust reliability for heavy‑duty precision motion control in industrial automation.
Description
F-4050-Q-H00AA
The F-4050-Q-H00AA is a medium‑inertia brushless AC servo motor from Allen‑Bradley (Rockwell Automation) F‑Series, designed for the 1398 Ultra series servo drives. It delivers high torque density, smooth dynamic response, and robust reliability for heavy‑duty precision motion control in industrial automation.
Overview
This model is a 4050‑frame, 8‑pole brushless synchronous servo motor with a ferrite permanent magnet rotor. It operates on 230/240 VAC three‑phase power, provides a continuous stall torque of 6.9 Nm, and reaches a rated speed of 4000 RPM. The motor features a 2000‑line optical incremental encoder for high‑resolution position and velocity feedback, and an integrated thermostat for thermal protection. Its IP65‑rated enclosure with shaft seal ensures protection against dust and splashed water, suitable for harsh factory environments. The motor is fully compatible with Allen‑Bradley 1398‑DDM‑0191, 1398‑DDM‑030 digital servo drives and 1398‑PDM‑30/50 positioning drives, supporting coordinated multi‑axis motion systems.
Key Specifications
Manufacturer: Allen‑Bradley (Rockwell Automation)
Series / Type: F‑Series, medium‑inertia brushless AC servo motor
Frame Size: 4050
Power Rating: 2.5 kW (3.35 HP)
Voltage: 230/240 VAC, three‑phase
Rated Speed: 4000 RPM
Continuous Stall Torque: 6.9 Nm
Peak Torque: Up to 20.7 Nm (drive‑dependent)
Continuous RMS Current: 12 A
Torque Constant (Ke): 0.575 Nm/A
Voltage Constant: 70 V/kRPM
Winding Resistance (25°C): 1.8 Ω (phase‑to‑phase)
Rotor Inertia: 0.0021 kg·m²
Feedback: 2000‑line quadrature optical encoder (TTL line driver)
Thermal Protection: Built‑in thermostat (0–250 VDC, 5 A max switching current, normally closed)
Enclosure Rating: IP65 (totally enclosed non‑ventilated, TENV)
Mounting: Standard IEC metric flange (5‑inch square cross‑section)
Shaft Diameter: Approx. 25 mm
Operating Temperature: 0°C to 40°C
Storage Temperature: –30°C to 70°C
Humidity: 5% to 95% (non‑condensing)
Weight: Approx. 14.1–15.8 kg
Core Features
The brushless design eliminates brush wear and electrical arcing, reducing maintenance and extending service life. The medium‑inertia rotor balances dynamic response and smooth operation, ideal for high‑speed positioning and steady‑speed applications with large inertial loads. The 2000‑line encoder ensures precise closed‑loop control, supporting tight position accuracy and velocity regulation. Integrated thermal protection prevents overheating during continuous or heavy‑duty cycles. The IP65 enclosure with shaft seal provides reliable protection in dusty, humid, or splash‑prone industrial environments. Compact, rugged construction resists vibration and shock, suitable for 24/7 operation in production lines. Compatibility with Allen‑Bradley Ultra drives enables seamless system integration and simplified commissioning.
Applications
The F-4050-Q-H00AA is widely used in industrial automation applications requiring medium inertia and high torque. Typical uses include CNC machine tools, metal cutting and forming equipment, heavy‑duty indexing tables, packaging machinery, material handling systems, textile machinery, web processing, and general factory automation. It is especially suitable for applications that demand consistent high torque, accurate positioning, and reliable performance in harsh conditions.
Installation and Maintenance
Mount the motor on a rigid, flat surface using the standard flange, ensuring proper alignment with the driven load to avoid excessive bearing stress. Use a suitable coupling to connect the motor shaft to the load; ensure the shaft seal is not damaged during installation. Verify that the supply voltage matches the motor’s 230/240 VAC rating, and connect power and encoder wiring per the manufacturer’s guidelines. Maintain ambient temperatures between 0°C and 40°C and ensure adequate ventilation to prevent overheating. Regularly inspect the motor for unusual noise, vibration, or overheating, and check wiring connections for tightness. Keep the IP65 enclosure clean and free of dust and debris. Avoid exposing the motor to corrosive gases or excessive moisture. If the thermostat trips, shut down the system immediately and inspect for overload or blocked ventilation before restarting.
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