Designing Power and Communication Redundancy
Design control-system redundancy by mapping shared dependencies, separating power and network paths, defining failover behavior, exposing degraded operation, and proof-testing every tolerated fault.
Manufacturer: Mitsubishi Electric
Product No.: HC-SFS502
Country of origin:United States
Product Type: AC Servo Motors
Payment: T/T, Western Union
Weight: 500g
Dimensions: 480 mm x 320 mm x 320 mm
Shipping port: Xiamen
Warranty: 12 months
Optimized for high-duty cycle industrial automation systems, the Mitsubishi Electric HC-SFS502 is a high-performance AC servo motor designed to deliver precise torque and speed control within the medium-inertia, medium-capacity HC-SFS Series. Rated at 5.0 kW with a nominal speed of 2000 r/min, this industrial motor provides the mechanical stiffness and dynamic response required for heavy-duty positioning tasks. It is engineered to pair natively with the MR-J2S-500A and MR-J2S-500B servo amplifiers, ensuring seamless integration into the MELSEC control architecture and maintaining high-speed communication stability under demanding operating conditions.
| Parameter | Value / Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | HC-SFS502 |
| Series Name | HC-SFS Series (Medium Inertia / Medium Capacity) |
| Rated Output Power | 5.0 kW |
| Rated Speed | 2000 r/min |
| Maximum Speed | 3000 r/min |
| Power Facility Capacity | 7.5 kVA |
| Compatible Servo Amplifier | MR-J2S-500A / MR-J2S-500B |
| IP Rating | IP65 (excluding shaft axis) |
| Ambient Operating Temperature | 0 to 40 degC |
| Shipping Weight (Calculated) | 30.0 kg |
| Package Dimensions (Calculated) | 480 mm x 320 mm x 320 mm |
The HC-SFS502 is part of the legacy MR-J2S platform. When upgrading systems or sourcing spares, note that this motor cannot be run directly by newer MR-J3 or MR-J4 amplifiers without specific legacy emulation parameters or drive-matching modules. If transitioning to the newer HG-SR series (e.g., HG-SR502), mount geometry and connector pinouts differ; physical adapter plates and custom cable assemblies are required to adapt the legacy footprint.
Due to the 5.0 kW power draw, regeneration energy is a critical consideration during rapid deceleration. Always calculate the thermal capacity of your external regenerative resistors connected to the MR-J2S-500A/B drive. Underestimating deceleration duty cycles can lead to overvoltage trips (Alarm 10 or Alarm 33) on the amplifier. Ensure adequate cooling clearances around the motor body, as medium-inertia motors operating in continuous-duty applications require unobstructed ambient airflow to prevent thermal runaway.
Always use original Mitsubishi high-flex encoder and power cables to avoid high-frequency noise interference, which can cause feedback loss (Alarm 16 or Alarm 20). Ensure that the encoder cable shield is grounded directly to the amplifier’s chassis plate. When tuning the MR-J2S amplifier, set the initial load inertia ratio manually before running auto-tuning, as the high-inertia characteristics of the HC-SFS502 can cause standard auto-tuning loops to overshoot, resulting in physical machine vibration.
CRITICAL WARNING: HIGH VOLTAGE & RESIDUAL CHARGE
Before executing any installation, maintenance, or wiring procedures, isolate the main 3-phase AC power feeding the servo amplifier. Wait at least 20 minutes for the internal DC bus capacitors of the MR-J2S-500 amplifier to discharge fully. Verify zero-voltage state across the L+ and L- terminals with a calibrated digital multimeter before handling connections.
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Returns & Warranty

Global Express Shipping
Returns & 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 .
| Country of origin |
United States
|