Mitsubishi Electric HC-SFS102BG1H 1/43 HC-SFS Series Servo Motor

Description

Engineered for high-torque industrial automation applications requiring exceptional mechanical reduction, the Mitsubishi Electric HC-SFS102BG1H 1/43 is an industrial-grade geared servo motor designed to deliver precise motion control under heavy loads. This unit integrates a high-performance 1.0 kW rotary servo motor from the rugged HC-SFS Series with a robust G1H leg-type reduction gear featuring a 1/43 reduction ratio. Designed for stability and reliability, this model features a built-in electromagnetic safety brake for secure vertical axis or stationary hold operations, protecting machinery from unexpected power failures.

Key Features

• Integrated Electromagnetic Brake: Reliable 24VDC holding brake for vertical applications and load locking.
• Industrial G1H Reduction Gearbox: Leg-mounted gear assembly with a heavy-duty 1/43 ratio, designed for high output torque at reduced operating speeds.
• Medium Inertia Design: Provides optimal load-to-motor inertia matching, improving stabilization and performance in heavy duty systems.
• Durable Enclosure: Designed to withstand typical industrial environments with oil and dust resilience.

Applications

• Heavy-duty conveyor and transfer lines requiring high static torque.
• Automated packaging and cartoning machinery.
• Material handling systems and multi-axis gantry positioners.
• Elevating systems and lifters requiring fail-safe holding brakes.

Technical Specifications

Connections and Interfaces

Empirical Engineering Insights

Alternative Models & Compatibility

The HC-SFS102BG1H 1/43 is a unique, foot-mounted (leg-type) assembly. If replacing a standard flange-mounted HC-SFS102B motor, significant mechanical modifications are required as the shaft height and mounting footprint differ completely. Control parameters on MR-J2S-100A or MR-J2S-100B amplifiers must recognize the motor ID correctly via encoder feedback; verify that your drive firmware version supports the G1H gearing parameters to avoid scaling or velocity command errors.

Application Pitfalls & Engineering Notes

With a high mechanical reduction ratio of 1/43, reflections of external load inertia back to the motor shaft are greatly reduced (by a factor of 1849). While this provides excellent control stability, the mechanical backlash in standard G1H gear systems is typically larger than high-precision planetary alternatives. This model is not suitable for dynamic, micro-degree rotary registration. Ensure external regenerative resistors are installed on the companion drive if the motor is deceleration-heavy, as the system inertia can drive excessive kinetic energy backward during emergency stops.

Commissioning & Wiring Tips

Never connect the 24VDC brake supply to the same circuit supplying control power to the PLC or the servo drive's signal inputs. Inductive kickback during holding brake release can introduce significant electrical noise, leading to communication dropouts or control-card resets. Use a dedicated contactor/relay with surge-suppression elements (diodes or varistors) directly across the motor brake coils.

Installation Guidelines