Description
Product Description
The Siemens 1FT7102-5AB71-1BD2 is a high-performance SIMOTICS S-1FT7 permanent magnet synchronous servo motor engineered for precision motion control in demanding industrial automation applications. Designed for seamless integration with Siemens SINAMICS S120 drive systems, this servo motor delivers exceptional positioning accuracy, rapid acceleration, and reliable continuous-duty performance for CNC machine tools, robotics, packaging machinery, material handling equipment, printing systems, and automated production lines.
Operating at a rated speed of 1,500 RPM, the motor provides 4.1 kW rated output power, 26 Nm rated torque, 30 Nm stall torque (100 K), and 120 Nm maximum torque. Its permanent magnet synchronous design ensures high efficiency, excellent overload capability, low rotor inertia, and outstanding dynamic response for high-precision servo applications.
The 1FT7102-5AB71-1BD2 features natural cooling, IM B5 flange mounting, IP65 protection, a plain shaft, integrated Pt1000 temperature monitoring, and a high-resolution encoder for precise speed and position feedback. The turnable SPEED-CONNECT power connector simplifies installation and maintenance, while the 1BD2 suffix identifies a specific encoder and connection configuration within the 1FT7 product family.
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 feedback
- Turnable SPEED-CONNECT power connector
- Optimized for Siemens SINAMICS S120 servo drive systems
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 1FT7102-5AB71-1BD2 |
| 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 Sensor | Pt1000 |
| Encoder | High-Resolution Encoder* |
| Electrical Connection | Turnable SPEED-CONNECT Connector |
| Drive Compatibility | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
* Encoder variant and certain configuration details depend on the complete Siemens MLFB ordering code.
Applications
- CNC Machining Centers
- CNC Lathes and Milling Machines
- Industrial Robotics
- Packaging Machinery
- Printing and Converting Equipment
- Material Handling Systems
- Automated Assembly Lines
- Textile Machinery
- Semiconductor Manufacturing Equipment
- Precision Motion Control Systems




