Technical Specifications

FAQ

Q1: What type of servo motor is the MPL-A310F-SK72AA?

A: The MPL-A310F-SK72AA is a low-inertia, brushless AC rotary servo motor in the MP-Series MPL family. It is designed for industrial motion control applications requiring accurate positioning, responsive acceleration, and controlled rotational movement. Its low-inertia design helps the motor respond quickly to changes in speed and position. Actual performance depends on the compatible servo drive, load characteristics, control parameters, and mechanical configuration.

Q2: Which servo drives are compatible with this motor?

A: Compatibility depends on the servo drive model, feedback interface, electrical ratings, and configuration. This motor uses a single-turn high-resolution absolute encoder with Hiperface feedback, so the selected drive must support the corresponding feedback system. When integrating the motor into an Allen-Bradley automation system, verify the exact drive catalog number and firmware compatibility before installation. The drive must also provide suitable voltage and current ratings for the motor’s operating requirements.

Q3: What are the rated speed and torque specifications?

A: The motor has a rated speed of 3000 rpm, a continuous stall torque of 1.58 N·m, and a peak torque of 3.61 N·m. These specifications help engineers evaluate the motor’s suitability for positioning systems, automated machinery, and applications requiring frequent acceleration and deceleration. Final selection should account for the actual load torque, reflected inertia, duty cycle, and acceleration profile. Peak torque should not be treated as a continuous operating rating.

Q4: What is the function of the Hiperface encoder?

A: The Hiperface encoder provides rotor-position feedback to the servo drive, supporting closed-loop position and speed control. The single-turn absolute feedback design allows the system to determine the rotor’s angular position within one revolution. The specified feedback resolution is 1024 Sin/Cos cycles per revolution. During installation or replacement, verify the feedback cable, connector compatibility, and drive configuration. Incorrect feedback connections or incompatible drive settings may result in encoder faults, inaccurate positioning, or failure to enable the motor.

Q5: Does the MPL-A310F-SK72AA include a holding brake?

A: No. The MPL-A310F-SK72AA is supplied without an integrated holding brake. If the application requires a motor shaft to remain stationary when power is removed, the machine design must provide an appropriate external holding or load-retention solution. This is particularly important for vertical axes and applications where uncontrolled movement could create a safety risk. Before selecting a replacement motor, confirm whether the original installation requires a brake, because a brake-equipped variant may have different electrical and mechanical requirements.

Q6: What should be considered when connecting the motor to the servo drive?

A: The motor uses a SpeedTEC DIN right-angle connector that can be rotated through 180 degrees to accommodate different installation layouts. Before connecting the motor, verify the correct power and feedback cables, connector compatibility, grounding arrangements, and drive terminal assignments. Ensure that cables are routed away from sources of electrical interference where practical and are not subjected to excessive bending or tension. All wiring work should be carried out with the equipment isolated from power in accordance with the applicable safety procedures.

Q7: Which applications are suitable for this low-inertia servo motor?

A: This motor can be considered for automated assembly equipment, packaging machinery, indexing systems, material handling equipment, and other applications requiring controlled motion and repeatable positioning. Its low-inertia characteristics can be beneficial in systems with frequent speed changes and short acceleration times. However, suitability depends on the application’s load inertia, required torque, operating speed, and motion cycle. Engineers should calculate the required continuous and peak torque and verify the drive’s capabilities before commissioning the complete motion system.

Q8: How can common operating faults such as vibration, encoder alarms, or positioning errors be diagnosed?

A: Begin by reviewing the servo drive’s alarm history and diagnostic information. For encoder-related faults, inspect the feedback cable, connector condition, wiring, and drive compatibility settings. For vibration or positioning errors, check mechanical alignment, coupling condition, load inertia, mounting rigidity, and servo tuning parameters. If the motor overheats or the drive reports an overload, evaluate the load torque, acceleration settings, and operating duty cycle. Correct the identified issue before restarting the equipment, and follow the manufacturer’s troubleshooting procedures when the fault persists.