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Mitsubishi Electric HC-SFS352B HC-SFS Series AC Servo Motor

Mitsubishi Electric HC-SFS352B HC-SFS Series AC Servo Motor

Only 10 item(s) left in stock
  • Manufacturer: Mitsubishi Electric

  • Product No.: HC-SFS352B

  • Country of origin:United States

  • Product Type: AC Servo Motors

  • Payment: T/T, Western Union

  • Weight: 20000g

  • Dimensions: 400mm x 400mm x 20mm

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

Engineered for high-demand closed-loop positioning systems, the Mitsubishi Electric HC-SFS352B AC Servo Motor delivers a robust 3.5 kW power output combined with medium inertia characteristics. Operating within the MELSERVO-J2-Super system architecture, this motor is specifically optimized for applications requiring stable speed regulation, high-resolution feedback, and precise deceleration performance. The integrated electromagnetic safety brake ensures structural holding power during power-loss scenarios, protecting critical mechanical axes from unexpected gravitational drops or inertia-driven overtravel.

Key Features

  • Medium Inertia Rotor: Provides ideal load-to-motor inertia matching for heavy-duty cyclical applications, preventing overshoot and mechanical resonance.
  • Integrated Electromagnetic Brake: 24VDC spring-activated holding brake designed to lock mechanical axes securely when de-energized.
  • High-Resolution Feedback: Equipped with a 17-bit incremental/absolute encoder providing 131,072 pulses per revolution for exceptional positioning resolution.
  • Rugged Environmental Protection: IP65 rated body enclosure (excluding shaft-through and connector areas) engineered to withstand harsh industrial workspaces.

Applications

  • High-speed gantry systems and heavy material handling transfers.
  • Multi-axis CNC machine tool feed axes and industrial machining tables.
  • Continuous-operation textile machinery and commercial printing presses.
  • Automated packaging machinery requiring strict dynamic synchronized motion.

Technical Specifications

Parameter Value
Manufacturer Mitsubishi Electric
Model Identifier HC-SFS352B
Series MELSERVO HC-SFS Series
Rated Output 3.5 kW
Rated Speed 2000 r/min
Maximum Speed 3000 r/min
Rated Torque 16.7 N-m
Electromagnetic Brake Yes (Integrated, 24VDC holding type)
Brake Power Consumption 30W at 20 degC
Compatible Voltage Class 200 VAC
Encoder Specification 17-bit Absolute/Incremental (131,072 p/rev)
Enclosure Protection Rating IP65 (excluding shaft opening)
Net Weight 19.0 kg
Shipping Weight (Calculated) 20.0 kg

Connections and Interfaces

This servo motor features dedicated military-style MS round connectors for power and encoder connections, ensuring IP65 liquid resistance when mated correctly.

Connector Type Terminal / Pin Reference Function Assignment
Power Plug U Motor Phase U
V Motor Phase V
W Motor Phase W
Earth Ground / PE Protective Earth
Brake Plug B1 Brake Terminal (Non-polarized)
B2 Brake Terminal (Non-polarized)

Empirical Engineering Insights

Alternative Models & Compatibility

The HC-SFS352B belongs to the legacy MELSERVO-J2S line and pairs natively with the MR-J2S-350A or MR-J2S-350B amplifiers. For migrations or system updates to contemporary lines such as the MR-J4 series, you must transition to the HG-SR352B motor and MR-J4-350A/B amplifiers. Direct physical drop-in replacements with newer controllers require specific adapter cables due to differences in encoder feedback protocols.

Application Pitfalls & Engineering Notes

Continuous high-cycle operation near rated torque generates significant heat. Ensure the motor is bolted directly to an appropriate heat-sink flange (minimum recommended aluminum surface area is 400mm x 400mm x 20mm) to avoid thermal overload faults (AL.30 or AL.46) on the associated amplifier drive. Avoid placing the motor in non-ventilated enclosures without active external cooling.

Commissioning & Wiring Tips

To suppress electro-magnetic interference (EMI) that may trigger feedback faults (such as AL.16 or AL.20), route the motor power cables and the encoder cables in separate, grounded steel conduits. Keep the distance between these lines at least 10 cm apart. When commissioning the brake, ensure it is powered via an isolated external 24VDC power supply with an independent surge-suppression diode rather than a PLC output directly.

Installation Guidelines

CRITICAL WARNING:

Prior to starting mechanical or electrical installation, completely de-energize the servo amplifier and wait a minimum of 15 minutes for internal capacitor banks to fully discharge. Confirm zero voltage at the DC bus terminals before handling terminals or connectors.

1

Mount the motor securely to the machine base frame, verifying parallel alignment of the output shaft to prevent premature bearing wear.

2

Connect the physical system ground to the PE terminal of the motor housing, verifying resistance meets your local industrial safety standard (typically < 100 ohms).

3

Mate the military-style round plugs for power and encoder feedback, rotating the coupling ring completely until locked to maintain the IP65 seal.

Which servo amplifier is compatible with the HC-SFS352B?

This motor is designed to work with the Mitsubishi MELSERVO MR-J2S-350A (analog/pulse train) and MR-J2S-350B (SSCNET fiber optic connection) servo amplifiers.

What is the purpose of the built-in electromagnetic brake?

The integrated 24VDC brake is a holding brake designed to lock the motor shaft and maintain axis position when the system is de-energized or in an emergency stop condition. It must not be used for dynamic deceleration.

How should the encoder feedback connection be handled to avoid noise?

Ensure the encoder cable shield is clamped to ground at the amplifier side. Route the encoder cable at least 10 cm away from all motor power cables to mitigate high-frequency electrical interference.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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