Mitsubishi Electric HC-SFS702BG1H 1/11 HC-SFS Series Servo Motor

Description

Delivering high-torque drive capabilities to heavy-duty industrial machinery, the Mitsubishi Electric HC-SFS702BG1H 1/11 is a high-capacity, medium-inertia industrial servo motor. This unit integrates a powerful 7.0 kW motor with a built-in electromagnetic safety brake and a specialized G1H leg-type reduction gear featuring a 1/11 reduction ratio. Designed for applications requiring precise speed regulation and reliable torque multiplication, this robust motor ensures exceptional dynamic response and stable operation under heavy load variations.

Key Features

• High Capacity Output: Rated at 7.0 kW, providing massive rotational power for heavy machinery.
• Integrated G1H Reduction Gear: Precision leg-mounted reducer with a 1/11 ratio optimized for heavy industrial applications.
• Electromagnetic Holding Brake: Built-in safety brake ensures instant axis locking and secure load retention during power-off conditions.
• Medium Inertia Design: Ideal for applications with fluctuating loads, ensuring stable control loop performance.
• Rugged Cast Frame: High torsional stiffness and excellent thermal dissipation properties for continuous duty cycles.

Industrial Applications

• Heavy metal forming, stamping, and cutting machinery.
• High-capacity material handling and gantry conveyor systems.
• Industrial mixing, compounding, and extrusion systems.
• Paper milling, winding, and high-tension web-handling lines.

Technical Specifications

Connections and Interfaces

Empirical Engineering Insights

Alternative Models & Compatibility

When pairing this motor with Mitsubishi servo drives, ensure that the drive parameters are explicitly updated to reflect the 1/11 physical gear reduction. Failure to configure the electronic gear ratio correctly in the parameters will cause mismatch faults between command pulses and actual axis movement. For legacy systems, verify that your servo amplifier firmware fully supports the HC-SFS high-resolution feedback protocols.

Application Pitfalls & Engineering Notes

Due to the massive 146 kg weight and heavy-duty torque multiplication of the G1H reduction unit, rigid mounting is mandatory. Mount this motor on a machined, stress-relieved steel baseplate to prevent vibration-induced shaft misalignment. Thermal expansion of the leg-mount gear casing under high continuous duty cycles must be accounted for to preserve alignment tolerances over time.

Commissioning & Wiring Tips

Always implement a dedicated external surge suppressor (diode or varistor) across the 24V DC electromagnetic brake power lines. The inductive kickback from releasing this heavy holding brake can otherwise inject high-frequency noise into the encoder's feedback run, leading to intermittent feedback errors. Route motor power and feedback cables in separate, shielded trays to minimize EMI.

Installation Guidelines