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The Yaskawa SGMS-50A6AB is a permanent magnet AC servomotor designed for high-efficiency applications. With a continuous power capacity of 5.0 kW, this motor achieves a nominal speed of 3000 RPM and can reach a maximum transient speed of 4500 RPM.
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| Manufacturer | Yaskawa |
|---|---|
| Product Type | Permanent Magnet AC Servomotor |
| Product Line | Sigma II |
| Part Number | SGMS-50A6AB |
| Weight | 36.63 lbs (16.61 kg) |
| Series | AC Motors |
| Continuous Power Rating | 5.0 kW |
| Nominal Operating Speed | 3000 RPM |
| Maximum Transient Speed | 4500 RPM |
| Continuous Torque Output | 15.8 N·m (161 kgf·cm / 140 lb·in) |
| Peak Torque Capacity | 47.6 N·m (486 kgf·cm / 422 lb·in) |
| Torque-to-Current Ratio | 0.61 N·m/A (6.2 kgf·cm/A) |
| Rotor Inertia | 12.3 x 10⁻³ kg·m² (12.6 gf·cm·s²) |
| Continuous Current Demand | 28.2 A (RMS) |
| Maximum Short-Term Current | 84 A (RMS) |
| Standard Encoder Type | Incremental Optical Encoder |
| Encoder Pulse Resolution | 4096 Pulses Per Revolution (PPR) |
| Environmental Protection Rating | IP67 (Shaft Seal Optional) |
| Electrical Insulation Class | Class F |
| Thermal Management | Totally Enclosed, Self-Cooled with Optional External Heat Sink Compatibility. |
The SGMS-50A6AB servomotor by Yaskawa is engineered for precision and durability. It operates continuously at a power rating of 5.0 kW, maintaining a nominal speed of 3000 RPM. In terms of performance, it can reach up to 4500 RPM during transient operations. The motor offers a steady torque output of 15.8 N·m, with the ability to handle peak torques of 47.6 N·m, making it suitable for demanding industrial tasks.
The torque-to-current ratio of 0.61 N·m/A reflects its efficiency in converting electrical input into mechanical output. A rotor inertia measured at 12.3 x 10⁻³ kg·m² supports smooth operation and responsiveness. Under typical conditions, the motor requires a continuous current of 28.2 A, but it is capable of withstanding a maximum short-term current of 84 A when necessary.
To enhance its accuracy, the servomotor integrates an incremental optical encoder with a resolution of 4096 pulses per revolution. This capability ensures precise feedback during operation. For durability, it is rated IP67, indicating strong environmental protection, and it includes optional shaft sealing for added resilience in challenging conditions. Its electrical insulation falls under Class F standards, ensuring reliable performance during sustained usage. Additionally, this model features a totally enclosed and self-cooled design, with an option for compatibility with external heat sinks to optimize thermal management in various operational environments.