The 1326AB-B530F-21 is a three-phase brushless AC permanent magnet synchronous servo motor produced by Allen-Bradley under Rockwell Automation, belonging to the 1326AB series. Adopting low inertia design, this motor delivers excellent dynamic performance and is built for high-precision and high-speed motion control in industrial scenarios. It is equipped with a durable brushless resolver for signal feedback, and features totally enclosed non-ventilated structure and standard IP65 protection. With high power density and stable torque output, it adapts to heavy-duty working conditions. This model has been discontinued, and currently only refurbished and surplus units are available for equipment replacement and maintenance.

1326AB represents the series of high-performance AC servo motors. B stands for the motor frame size. 530 refers to the power rating and core stack length specification. F indicates the maximum operating speed grade. 21 means the motor adopts standard IEC metric flange mounting and metric keyway shaft structure.

This servo motor is powered by three-phase 380 VAC to 460 VAC power supply with 50 Hz and 60 Hz frequency. Its rated speed is 3200 revolutions per minute under 380 VAC input and 4000 revolutions per minute under 460 VAC input. The rated power is 4.3 kW, with rated torque of 12.8 N·m and continuous stall torque of 12.8 N·m. The peak stall torque reaches 38.4 N·m. It uses brushless resolver as the feedback component. The motor winding adopts Class F insulation for outstanding heat resistance. The overall protection grade is IP65 with totally enclosed non-ventilated structure. The applicable ambient temperature ranges from 0 degrees Celsius to 40 degrees Celsius, and the relative humidity is 5% to 95% without condensation. The rotor features low inertia design, and the whole machine runs with low vibration and noise.

A top-mounted junction box is configured for connecting three-phase power cables and grounding wire. A special connector is reserved for the resolver to transmit position, commutation and speed feedback signals. The mechanical interface adopts standard IEC metric flange and keyway shaft to connect with driven loads. This motor is fully compatible with supporting Allen-Bradley servo drives to complete signal interaction and motion control. All wiring ports have anti-interference design to adapt to complex industrial electromagnetic environments. There is no independent external communication port, and all control and data transmission are realized through the matched servo drive.

It achieves high-precision speed and position control, and the low inertia structure supports fast acceleration and deceleration actions. It maintains stable torque output in the full speed range to meet the requirements of heavy-load operation. The brushless resolver provides long-term reliable feedback signals for the control system. The totally enclosed and IP65 protection structure effectively blocks dust and water splash, protecting internal components. The built-in thermal protection device can cut off operation in time when overheating occurs to prevent winding damage. The optimized stator winding reduces torque ripple and ensures smooth low-speed operation. The motor supports multiple installation angles for flexible field layout.

It is widely used in high-speed CNC machine tools such as milling machines, lathes and grinders. It is applicable to high-speed packaging equipment, material handling and automated assembly lines. It also fits for textile and printing machinery that requires fast response and stable operation. In addition, it serves as an ideal replacement part for renovation and maintenance of legacy Allen-Bradley servo systems. It can work stably in ordinary factory workshops with dust, slight moisture and vibration.

Cut off all power supplies before installation. Fix the motor firmly on a rigid mounting surface, and reserve enough space around the body for heat dissipation. Connect power cables and feedback cables strictly according to the terminal definitions, and make reliable grounding. Use standard flexible couplings to connect the motor shaft and load, and avoid shaft misalignment. Complete parameter configuration on the matched servo drive based on motor specifications. After all inspections are finished, power on the system, conduct jog test to confirm the rotation direction, and then start formal operation.

Carry out comprehensive inspection every three to six months to check the motor appearance, mounting status and cable connection conditions. Cut off the power before cleaning, and wipe the motor surface and junction box with dry cloth. Regularly check all wiring terminals and tighten loose connections timely. Inspect the resolver connector and signal lines to ensure stable signal transmission. The motor is equipped with sealed bearings without regular lubrication; replace the bearings once abnormal noise or excessive vibration appears. Store spare motors in cool, dry and dust-free places. Do not disassemble the motor without permission, and all inspection and repair work shall be completed by professional technicians.