Mitsubishi Electric HG-MR23B MELSERVO HG-MR Series AC Servo Motor

Description

Optimized for high-speed, high-precision positioning applications, the Mitsubishi Electric HG-MR23B provides dynamic performance within the MELSERVO-J4 automation platform. Engineered with an ultra-low inertia rotor, this compact servo motor excels in rapid acceleration and deceleration cycles. The integrated electromagnetic holding brake ensures system safety by securing the shaft position during power-off states, preventing mechanical drift in vertical or high-load axes.

Key Features

• Ultra-Low Inertia Design: Minimizes mechanical lag and allows for extremely responsive mechanical synchronization.
• Electromagnetic Brake: Integrated 24V DC spring-actuated brake designed for positive position retention during emergency stops or power failures.
• High-Resolution Feedback: Designed for seamless integration with high-resolution encoders to provide micro-precision feedback loop closure.
• IP65 Protection: Dust-tight and moisture-resistant construction (excluding the shaft-through portion) suitable for harsh industrial environments.

Applications

• High-speed pick-and-place gantries and material handling systems
• Semiconductor manufacturing and electronic component inserters
• Food processing and packaging machinery feed systems
• Multi-axis small robot joints and automated lab equipment

Technical Specifications

Connections and Interfaces

Empirical Engineering Insights

Alternative Models & Compatibility

The HG-MR23B serves as a direct functional replacement for older HF-KP series or HF-MP series motors when migrating legacy systems to the modern MR-J4 amplifier platform. Ensure parameter conversion is executed in MR Configurator2 to map the inertia and encoder resolution correctly, avoiding erratic loop feedback upon initial power-up.

Application Pitfalls & Engineering Notes

Due to the ultra-low rotor inertia of the HG-MR series, load-to-rotor inertia ratios exceeding 15:1 can cause control loop oscillations and resonance. Utilize the real-time auto-tuning and adaptive vibration suppression filters in the companion servo drive to damp high-frequency mechanical vibration. Do not exceed the maximum allowable radial and thrust shaft loads listed in the installation manual to prevent premature bearing failure.

Commissioning & Wiring Tips

Always route encoder cables and power lines through separate, shielded conduits or tracks to prevent electromagnetic interference (EMI) from corrupting the encoder's serial communication. The electromagnetic brake is designed strictly for static position-holding and must never be used for dynamic braking during runtime, as doing so will burn out the internal friction pad rapidly.

Installation Guidelines