Mitsubishi Electric HC-UF43K MELSERVO HC-UF Series AC Servo Motor

Description

Engineered for high-performance dynamic positioning in space-restricted industrial environments, the Mitsubishi Electric HC-UF43K is a flat-type, low-inertia AC servo motor. This unit integrates into the MELSERVO system architecture, offering precise angular velocity and torque control. The low-profile mechanical design of the HC-UF43K makes it an ideal choice for machinery requiring high torque density without increasing the physical footprint. Equipped with a keyed shaft configuration, this motor ensures slip-free torque transmission during rapid acceleration and deceleration cycles.

Key Features

• Flat Profile Design: Specifically configured for applications with limited depth or compact mounting envelopes.
• Low Inertia Rotor: Optimized for high-frequency start-stop cycles and highly dynamic positioning tasks.
• Integrated Keyway: Features a factory-machined keyway (HC-UF series specification with key) for positive-lock shaft coupling.
• Industrial Grade Insulation: High-integrity winding insulation designed to withstand transient voltage spikes from modern servo drives.

Applications

• Material handling systems and multi-axis Cartesian pick-and-place robots.
• Compact packaging machines, indexing tables, and textile machinery.
• Semiconductor manufacturing equipment and wafer-handling automation.

Technical Specifications

Alternative Models & Compatibility

The HC-UF43K AC servo motor is designed for native integration with MR-J2S series servo amplifiers (specifically the MR-J2S-40A and MR-J2S-40B modules). When upgrading legacy motion systems, verify that the amplifier firmware is compatible with HC series motors. Note that physical replacements must maintain exact mounting dimensions, as flat-type motors feature a distinct bolt circle diameter compared to standard cylindrical models.

Application Pitfalls & Engineering Notes

Because flat-profile motors have a reduced external surface area, heat dissipation is highly dependent on conductive cooling through the mounting face. Ensure the motor is bolted directly to a clean, unpainted metal surface (such as an aluminum frame) of sufficient mass to serve as an effective heat sink. Additionally, avoid exceeding the maximum radial and axial load limits on the shaft, as flat-motor bearings are sensitive to overhung loads which can cause premature wear and encoder alignment drift.

Commissioning & Wiring Tips

To avoid high-frequency noise interference in the encoder signal line, always use double-shielded twisted-pair cabling for the encoder feedback loop. Ground the cable shield at the servo amplifier chassis side only. If experiencing "AL.16" or "AL.20" fault codes on your MR-J2S drive, check the integrity of the encoder connector plug pins and ensure no moisture has entered the motor terminal housing during installation.

Installation Guidelines