Mitsubishi Electric HG-SR52 MELSERVO-J4 Series Servo Motor

Engineered for high-inertia motion control applications, the Mitsubishi Electric HG-SR52 medium-capacity servo motor provides precise positioning and speed control within the MELSERVO-J4 platform. This 200V AC rotary servo motor features a rated output of 0.5 kW and a rated torque of 2.4 N-m, making it highly suitable for material handling, packaging machinery, and industrial positioning axes.

Key Features

• High-resolution 22-bit absolute/incremental encoder (4,194,304 pulses/revolution) for exceptional positioning accuracy and velocity stability.
• Totally enclosed, self-cooled construction with an IP67 protection rating (excluding shaft-through portion) for reliable operation in harsh environments.
• Low-inertia, medium-capacity design optimized for stable operation under fluctuating load conditions.
• Seamless integration with MR-J4 series servo amplifiers via high-speed SSCNET III/H or CC-Link IE Field networks.
• Class 155 (F) thermal insulation rating for reliable thermal performance in demanding industrial environments.

Industrial Applications

• Automated packaging systems and bottling lines.
• Multi-axis material handling gantries and robotic transfer units.
• Conveyor drive systems requiring precise acceleration and deceleration profiles.
• Textile machinery and printing presses.

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

The HG-SR52 serves as the direct modern replacement for the legacy HC-SFS52 series. While physical mounting dimensions are highly compatible, the HG-SR52 features a significantly higher resolution 22-bit encoder compared to the older 17-bit systems. When upgrading, ensure that the paired servo amplifier is updated with the correct motor parameters to prevent initialization faults.

Application Pitfalls & Engineering Notes

In high-duty cycle applications, monitor the motor's continuous effective torque to ensure it remains below the 2.4 N-m rated threshold. Exceeding this limit in poorly ventilated enclosures will trigger thermal overload faults (AL.50 or AL.51) on the MR-J4 amplifier. If the motor is mounted vertically, ensure proper cable routing to prevent oil or water from pooling at the connector entry points, as the standard HG-SR52 does not include an oil seal (use the HG-SR52J variant if an oil seal is required).

Commissioning & Wiring Tips

Always use genuine Mitsubishi encoder cables (such as the MR-EKCBL-M series) to maintain signal integrity for the high-resolution 22-bit feedback. Ensure the encoder cable shield is properly grounded at the amplifier chassis to prevent high-frequency noise interference from causing encoder communication errors (AL.1A or AL.20).

Installation Guidelines