Mitsubishi Electric HG-SN52BJ-S100 HG-SN Series Servo Motor

Description

Delivering reliable rotational force in demanding automation environments, this high-performance Mitsubishi Electric AC rotary drive operates under part designation HG-SN52BJ-S100 to provide precise motion control. Engineered as a medium-inertia solution, it delivers a rated output of 0.5 kW and comes standard with a factory-installed electromagnetic safety brake and a robust oil seal to shield inner assemblies from oil-mist exposure.

The motor features a totally enclosed, natural cooling design that achieves an IP67 protective rating (excluding the shaft passage), ensuring reliable long-term service in rugged production facilities. With its optimization for a load-to-motor inertia ratio of up to 15 times, this unit is highly effective for heavy material handling, cyclic positioning, and vertical-axis applications requiring absolute holding torque during power loss.

Features

• Medium Inertia Design: Highly stable speed control and accurate positioning under heavy or fluctuating load inertia matching up to 15 times the motor's rotor inertia.
• Holding Electromagnetic Brake: Integrated holding brake offers critical physical position lock when control power is shut off, protecting vertical axes from drop-downs.
• Factory-Fitted Oil Seal: Prevents industrial gear oils and cutting fluids from seeping along the shaft and degrading the internal electrical windings.
• High Environmental Resilience: IP67 rated dust-tight and moisture-resistant enclosure handles demanding factory floor conditions.
• Class 155 (F) Insulation: Constructed with highly resilient winding insulation to endure elevated thermal loads during heavy-duty deceleration and acceleration cycles.

Applications

• Vertical axis axes in CNC machinery and industrial pick-and-place gantry units.
• Automotive assembly line conveyor indexing systems requiring positive stopping power.
• Packaging, wrapping, and cartoning machinery operating under continuous start-stop profiles.
• Textile processing and material handling systems exposed to airborne fibers or light splashing.

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

The HG-SN52BJ-S100 serves as a direct medium-inertia upgrade path for legacy HC-SFS52B series motors. When migrating systems, ensure the drive amplifier is upgraded to a MELSERVO-J4 series unit (such as the MR-J4-60A or MR-J4-60B), which contains the correct firmware and feedback registers to support the high-resolution encoder interface. Standard parameters may require adjustment to match the updated thermal curves of the HG-SN series.

Application Pitfalls & Engineering Notes

A common point of operational wear is relying on the integrated electromagnetic brake to perform emergency stopping actions on a spinning load. This brake is purely designed for physical locking (static holding) under zero-speed conditions. Dynamic deceleration using the holding brake will glaze the friction surfaces, resulting in a loss of holding torque and eventual mechanical slippage. Additionally, if the motor is mounted vertically shaft-up, ensure a protective cover is added to avoid liquid accumulation that could degrade the oil seal over extended run periods.

Commissioning & Wiring Tips

To minimize electrical noise in highly sensitive control enclosures, always run dedicated, double-shielded encoder feedback cables separated by a minimum of 30 cm from power cables. Additionally, because this model incorporates an electromagnetic holding brake, ensure a surge absorber (varistor) is installed in parallel with the brake control relay coil to absorb the back-EMF spikes generated during high-frequency switching operations.

Installation Guidelines