Allen-Bradley 1326AS-B440G-21 Brushless servo motor

Allen-Bradley 1326AS-B440G-21 Technical Overview

1. General Description

The 1326AS-B440G-21 is part of Allen-Bradley’s Bulletin 1326 family of high-performance brushless servo motors. It is designed for dynamic motion control applications requiring precise positioning, speed, and torque regulation. This motor integrates seamlessly with Allen-Bradley Kinetix® servo drives and CompactLogix/ControlLogix PLCs, making it ideal for automation systems in manufacturing, robotics, and CNC machinery.

2. Key Technical Specifications

• Motor Type:
  • Permanent Magnet Synchronous Motor (PMSM), brushless design.
  • Frame Size: Likely 40mm or 60mm (varies by series; confirm via part number decoding).
• Electrical Ratings:
  • Voltage: Typically 230V AC or 480V AC (depends on regional configuration).
  • Power: ~400W (estimated based on “B440” designation; “440” may indicate 0.44 kW or similar).
  • Current: Varies with load; consult motor nameplate.
• Torque and Speed:
  • Continuous Torque: ~1.27 Nm (estimated for 400W class motors).
  • Peak Torque: ~3.8 Nm (typical for servo motors in this range).
  • Maximum Speed: 5,000–6,000 RPM (common for this class).
• Feedback Device:
  • Integrated high-resolution encoder (absolute or incremental).
  • Encoder Type: Likely a multi-turn 21-bit resolver or encoder (“G-21” suffix suggests 21-bit resolution).
• Environmental Ratings:
  • IP Rating: IP65 (common for industrial servo motors, dust-tight and protected against water jets).
  • Ambient Temperature: 0°C to 40°C (32°F to 104°F) operational.
• Mechanical Design:
  • Shaft: Keyed or smooth shaft with standard dimensions (e.g., 14mm diameter).
  • Mounting: Foot or flange mounting options.
  • Connector: Sealed industrial connector for power and feedback.
• Certifications:
  • UL Listed, CE Marked, RoHS compliant.

3. Functional Capabilities

1. Precision Control:
   • Delivers high torque density and low inertia for rapid acceleration/deceleration.
   • Ideal for applications requiring repeatability (e.g., pick-and-place, CNC axes).
2. Feedback Integration:
   • The 21-bit encoder/resolver provides ultra-high resolution for precise position/speed feedback.
   • Supports closed-loop control with Allen-Bradley Kinetix drives.
3. Dynamic Performance:
   • Optimized for high bandwidth and minimal torque ripple.
   • Compatible with advanced tuning tools (e.g., Studio 5000 Logix Designer).
4. Durability:
   • Rugged construction for harsh environments (vibration, dust, moisture).
   • Maintenance-free design with no brushes to replace.
5. Safety Features:
   • Optional Safe Torque Off (STO) functionality via compatible drives.

4. Integration and Compatibility

• Drives: Pairs with Kinetix 5300, 5500, or 5700 servo drives.
• Controllers: Works with Allen-Bradley ControlLogix, CompactLogix, or GuardLogix PLCs.
• Software: Configured via Studio 5000® for parameter tuning, diagnostics, and motion profiling.

5. Typical Applications

• Robotics and automated assembly lines.
• Packaging machinery (fillers, wrappers).
• Semiconductor manufacturing.
• Printing and converting equipment.
• Metal cutting/forming machines.

6. Ordering Information

• Model: 1326AS-B440G-21 (verify suffix codes for exact configuration).
• Accessories: Cables, mounting brackets, and feedback modules (sold separately).