Mitsubishi Electric HG-SR52G1H 1/6 MELSERVO-J4 Series Geared Servo Motor

Description

Designed for high-torque industrial positioning applications, the Mitsubishi Electric HG-SR52G1H 1/6 provides robust motion control with an integrated 1/6 ratio reduction gear. This 0.5 kW rotary servo motor operates on a 200V class supply, seamlessly mating with MELSERVO-J4 series servo amplifiers to deliver reliable speed and torque regulation. Featuring a built-in 22-bit absolute/incremental encoder, the unit ensures high-resolution feedback with up to 4,194,304 pulses per revolution, minimizing positioning errors in heavy-duty machinery. The rugged leg-mounting frame and grease-lubricated sealed gear unit make it suitable for continuous, high-inertia operations across various automation sectors.

Features

• High-Resolution Feedback: Equipped with a 22-bit encoder (4,194,304 pulses/rev) operating in both absolute and incremental modes.
• Integrated Gearbox: Factory-installed 1/6 reduction gear unit designed for specialized high-torque, lower-speed applications.
• Industrial Protection: IP67-rated motor body combined with an IP44-equivalent gear unit safeguards against moisture and dust ingress.
• Durable Leg Mounting: Rigid mechanical foot-mounting design optimized for high radial and thrust load thresholds.
• Sealed Lubrication: Maintenance-free grease-lubricated reducer enables installation in multiple physical orientations.

Applications

• Heavy material handling systems and heavy-duty conveyor indexing.
• Rotary positioning stages and automated indexing tables.
• Packaging machinery requiring stable low-speed torque profiles.
• Metalworking machine auxiliary axes and automotive assembly lines.

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

The HG-SR52G1H 1/6 replaces legacy geared units from the HC-SF series. When migrating older systems to MELSERVO-J4 architectures, confirm parameter adjustments on the MR-J4-60B or MR-J4-60A amplifiers, as the 22-bit high-resolution encoder requires different feedback processing speeds compared to older 18-bit interfaces. Ensure the physical leg-mount spacing aligns with the legacy framework, as frame conversions may require an intermediate adapter plate.

Application Pitfalls & Engineering Notes

Note that the integrated 1/6 helical gear reducer causes the output shaft to rotate in the reverse direction relative to the servo motor input shaft. Failing to account for this physical inversion in the motion controller configuration (such as in Simple Motion Modules or Q-Series Motion Controllers) will result in directional execution faults during initialization. Additionally, keep backlash allowances (40 minutes to 2 degrees) in mind for highly dynamic or bidirectional applications where micro-oscillations might trigger servo resonance.

Commissioning & Wiring Tips

Always route the 22-bit encoder cable separate from the 200V motor power leads to avoid electromagnetic interference. Ensure the encoder cable shield is properly grounded at the drive end. When configuring the amplifier parameters via MR-Configurator2, set the electronic gear ratio matching the physical 1/6 mechanical reduction to ensure accurate real-world travel measurements on your HMI/PLC coordinate systems.

Installation Guidelines

1. 1
   Mount the geared motor securely on a flat, vibration-free surface using the integrated leg mounts and suitable grade-strength fasteners to handle the high output torque.
2. 2
   Align the output shaft to the driven load with precision, ensuring radial and thrust limits do not exceed 980 N and 490 N respectively.
3. 3
   Connect the encoder feedback cable to the CN2 receptacle on the servo drive, routing it through dedicated, grounded conduits to maintain noise immunity.
4. 4
   Connect the power leads (U, V, W, and Ground) to the respective servo output terminals on the drive, ensuring correct phase configuration to prevent overcurrent trip codes.