Mitsubishi Electric

Mitsubishi Electric HG-SR102 MELSERVO-J4 Series Rotary Servo Motor

SKU HG-SR102

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Mitsubishi Electric

  • Product No.: HG-SR102

  • Country of origin:United States

  • Product Type: Rotary Servo Motors

  • Payment: T/T, Western Union

  • Weight: 6700g

  • Dimensions: 34 cm x 18 cm x 28 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Operating within the 200V power class, this high-performance medium-inertia rotary unit, identified as the Mitsubishi Electric HG-SR102, delivers continuous torque for automated positioning applications. Built for integration with the MELSERVO-J4 platform, it provides precise motion control in demanding factory automation settings. Featuring a high-resolution 22-bit encoder, this motor offers exceptional dynamic response and position feedback reliability, making it suitable for material handling, indexing, and high-speed packaging machinery.

Features

  • High-Resolution Feedback: 22-bit absolute/incremental encoder delivers 4,194,304 pulses per revolution for ultra-precise speed and position control.
  • Robust Rotor Inertia: Medium-inertia design ensures stable rotation and smooth torque delivery, especially during load variations.
  • Industrial Protection: Fully enclosed, self-cooled frame with an IP67 rating (excluding shaft-through portion) protects internal windings from dust and water spray.
  • Extensive Drive Compatibility: Seamlessly pairs with J4-100GF, MR-J4-100B, and MR-J4-100A servo amplifiers.
  • High Peak Torque Capacity: Delivers a maximum instantaneous torque of 14.3 Nm, providing rapid acceleration and braking profiles.

Applications

  • Automated assembly systems and robotic pick-and-place gantry configurations.
  • Multi-axis packaging, filling, and labeling machinery.
  • High-speed rotary indexing tables and rotary knife actuators.
  • Material handling conveyors and automated warehousing storage/retrieval lifters.

Technical Specifications

Specification Parameter Value
Manufacturer Mitsubishi Electric
Model Number HG-SR102
Series MELSERVO-J4 Series
Rated Output 1.0 kW
Voltage Class 200 VAC
Rated Speed 2000 r/min
Maximum Speed 3000 r/min
Rated Torque 4.8 Nm
Maximum Torque 14.3 Nm
Rated Current 5.6 A
Maximum Current 17.0 A
Moment of Inertia (J) 11.6 x 10^-4 kg*m2
Speed/Position Detector 22-bit absolute/incremental encoder (4,194,304 pulses/rev)
Thermal Class 155 (F)
Protection Structure IP67 (excluding shaft opening)
Operating Temperature 0 to 40 degC (non-freezing)
Permissible Shaft Loads Radial: 980 N, Thrust: 490 N
Product Weight 6.7 kg
Shipping Weight 8.0 kg
Product Dimensions 34 cm x 18 cm x 28 cm

Empirical Engineering Insights

Alternative Models & Compatibility

When migrating legacy automation lines from older HC-SFS102 series motors to the modern MELSERVO-J4 architecture, the HG-SR102 acts as the direct functional equivalent. However, note that encoder connection cables and physical dimensions differ between the series; retrofit adapters and updated cabling are required to interface successfully with MR-J4 series amplifiers.

Application Pitfalls & Engineering Notes

Operating the motor inside small, completely sealed enclosures without external cooling plates can cause localized heating. The motor relies on its mounting flange to dissipate heat; ensure the mounting surface meets the minimum area and thickness guidelines outlined in the MR-J4 manual to prevent thermal overload faults (E7 or E9). Standard HG-SR series motors do not include an integrated oil seal. For setups mounted to oil-bath gearboxes or subjected to splashing oils, opt for the HG-SR102J variant to prevent winding degradation.

Commissioning & Wiring Tips

The high-frequency signals from the 22-bit serial encoder are sensitive to electrostatic discharge and EMI. Always route encoder cabling through a dedicated, grounded steel conduit or keep it at least 30 cm away from main power lines (U/V/W phase lines). Ground the motor housing directly to the amplifier ground plate using an ultra-low impedance bonding strap to eliminate floating potential errors.

Installation Guidelines

CRITICAL WARNING

Isolate and lock out all primary three-phase power and control voltage lines before initiating installation. Wait at least 15 minutes to allow internal amplifier capacitors to discharge. Verify zero-energy states across all motor terminals (U, V, W, and earth) before physical manipulation.

1

Mechanical Alignment: Align the shaft center with the load assembly using a flexible coupling. Maintain radial loads under 980 N and thrust loads under 490 N to avoid premature bearing failure.

2

Mounting Bolt Torque: Securely bolt the motor flange to the installation frame using high-strength fasteners. Apply the OEM-specified torque profile evenly across all structural holes.

3

Electrical Connections: Connect power phases U, V, and W, maintaining correct rotation mapping to the servo amplifier terminals. Secure the protective earth conductor directly to the chassis.

4

Encoder Connection: Connect the 22-bit feedback connector, ensuring the IP67 sealing sleeve is locked down tightly to prevent coolant or dust penetration.

FAQ

What is the resolution of the encoder built into the HG-SR102 motor?

This servo motor features a built-in 22-bit absolute/incremental encoder, providing a feedback resolution of 4,194,304 pulses per revolution.

Does the HG-SR102 motor come standard with an oil seal?

No, the standard model does not include an oil seal. For applications with oil mist, splashing lubricants, or wet gearboxes, you should specify the HG-SR102J variant.

What are the structural shaft loading limits of this model?

The permissible radial load is 980 N (measured at a distance of 55 mm from the shaft end), and the permissible thrust load is 490 N.

Is the HG-SR102 compatible with older MR-J3 series amplifiers?

No, the HG-SR102 is designed for the MELSERVO-J4 platform and is compatible with J4-100 series amplifiers, such as the MR-J4-100A, MR-J4-100B, and MR-J4-100GF.

View all FAQs →

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  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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