Description
Product Description
The Siemens 1FT7102-5AB71-1BD5 is a premium SIMOTICS S-1FT7 permanent magnet synchronous servo motor designed for demanding industrial automation and precision motion control applications. Engineered for seamless compatibility with Siemens SINAMICS S120 drive systems, this motor provides exceptional positioning accuracy, high torque density, rapid dynamic response, and reliable continuous-duty performance. It is ideal for CNC machine tools, robotics, packaging machinery, material handling systems, printing equipment, and automated manufacturing lines.
Operating at a rated speed of 1,500 RPM, the motor delivers 4.1 kW rated output power, 26 Nm rated torque, 30 Nm stall torque (100 K), and a maximum torque of 120 Nm. Its permanent magnet synchronous design offers high efficiency, low rotor inertia, excellent overload capability, and precise speed control for high-performance servo applications.
The 1FT7102-5AB71-1BD5 features natural cooling, IM B5 flange mounting, IP65 protection, a plain shaft, integrated Pt1000 temperature monitoring, and a high-resolution encoder for accurate speed and position feedback. The 1BD5 suffix represents a specific encoder and connection configuration within the SIMOTICS S-1FT7 family while maintaining identical core motor performance. Final encoder specifications depend on the complete Siemens MLFB configuration.
Key Features
- Genuine Siemens SIMOTICS S-1FT7 synchronous servo motor
- Permanent magnet synchronous motor technology
- Natural cooling
- Rated output power: 4.1 kW
- Rated speed: 1,500 RPM
- Rated torque: 26 Nm
- Stall torque (100 K): 30 Nm
- Maximum torque: 120 Nm
- Maximum mechanical speed: 6,000 RPM
- High torque density with low rotor inertia
- Plain shaft configuration
- IM B5 flange mounting
- IP65 enclosure protection
- Integrated Pt1000 temperature sensor
- High-resolution encoder
- Turnable SPEED-CONNECT power connector
- Optimized for Siemens SINAMICS S120 servo drive systems
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 1FT7102-5AB71-1BD5 |
| Product Family | SIMOTICS S-1FT7 |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Natural Cooling |
| Rated Power | 4.1 kW |
| Rated Speed | 1,500 RPM |
| Rated Torque | 26 Nm |
| Stall Torque (100 K) | 30 Nm |
| Maximum Torque | 120 Nm |
| Rated Current | 8 A |
| Maximum Current | 45 A |
| Maximum Mechanical Speed | 6,000 RPM |
| Maximum Inverter Speed | 2,680 RPM |
| Number of Poles | 10 |
| Efficiency | 93% |
| Rotor Inertia | 91.4 kg·cm² |
| Shaft Type | Plain Shaft |
| Mounting Arrangement | IM B5 Flange |
| Protection Class | IP65 |
| Temperature Monitoring | Pt1000 Sensor |
| Encoder | High-Resolution Encoder* |
| Electrical Connection | Turnable SPEED-CONNECT Connector |
| Drive Compatibility | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
* Encoder interface and communication protocol are determined by the complete Siemens MLFB ordering code.
Applications
- CNC Machining Centers
- CNC Turning and Milling Machines
- Industrial Robotics
- Packaging Machinery
- Printing and Converting Equipment
- Material Handling Systems
- Automated Assembly Lines
- Semiconductor Manufacturing Equipment
- Textile Machinery
- Precision Motion Control Systems




