Mitsubishi Electric HC-SFS702B MELSERVO HC-SFS Series AC Servo Motor

Description

Precision motion control in demanding heavy-duty environments requires highly reliable torque transmission and robust position feedback. The Mitsubishi Electric HC-SFS702B is a medium-inertia AC servo motor engineered for industrial automation systems requiring high torque density and precise speed control. As part of the MELSERVO product family, this motor is equipped with an integrated electromagnetic holding brake, making it suitable for vertical lift applications, Z-axis actuation, and other systems where mechanical holding is required during power-off states.

The unit features a high-resolution 17-bit encoder, providing detailed rotational feedback for fine position tuning and system stability. Built with a totally enclosed non-ventilated (TENV) structure and fitted with an integrated oil seal, the motor is designed to resist oil mist and dust in harsh factory environments, maintaining consistent continuous operation under heavy loads.

Features

• Medium rotor inertia design ensures stable, oscillation-free control even under fluctuating or high-ratio load inertias.
• Integrated 17-bit absolute/incremental optical encoder delivers a resolution of 131,072 pulses per revolution for high-precision positioning.
• Built-in electromagnetic brake provides reliable holding torque to secure loads when the drive system is de-energized.
• Totally Enclosed Non-Ventilated (TENV) industrial housing with a standard shaft-mounted oil seal for enhanced environment protection.
• Optimized electrical design for high peak torque output and rapid dynamic response during acceleration and deceleration phases.

Applications

• Vertical axis holding and gantry systems in automated assembly lines.
• Heavy-duty material handling and transfer car systems.
• CNC metal cutting, milling, and machine tool feed spindles.
• Packaging, indexing, and high-speed sorting machinery.

Technical Specifications

Installation Guidelines

Ensure the mounting surface is flat and capable of handling the structural weight and rotational reaction forces of the motor. Align the motor shaft precisely with the load shaft; excessive radial or axial load on the shaft can lead to premature bearing or oil seal failure. Connect the protective earth (PE) terminal to the designated ground point of the control panel to mitigate high-frequency electrical noise from the servo amplifier. When routing cables, avoid tight bends and keep the power lines isolated from encoder signal wiring to prevent electromagnetic interference.