Description
Product Description
The Siemens 1FT7046-5AH7X-1XXX is a SIMOTICS S-1FT7 permanent magnet synchronous servo motor designed for high-speed, precision motion control applications. Engineered for seamless operation with Siemens SINAMICS S120 servo drive systems, this naturally cooled motor delivers exceptional dynamic response, high positioning accuracy, and reliable continuous-duty performance. It is ideally suited for CNC machine tools, robotics, packaging machinery, semiconductor equipment, printing presses, and automated manufacturing systems.
Operating at a rated speed of 4,500 RPM, the 1FT7046-5AH7X-1XXX delivers 1.32 kW rated output power, 2.4 Nm rated torque, and 7.0 Nm stall torque (100 K). The motor can produce up to 31 Nm maximum torque and supports maximum mechanical speeds up to 9,000 RPM, making it ideal for high-speed positioning and rapid acceleration applications. Its permanent magnet rotor provides excellent torque density, low inertia, and outstanding efficiency.
The 1FT7046-5AH7X-1XXX product family includes multiple MLFB variants with various encoder systems, shaft configurations (plain shaft or fitted key), optional holding brakes, connector orientations, vibration grades, and protection classes. All variants feature natural cooling, IM B5 flange mounting, integrated temperature monitoring, and DRIVE-CLiQ communication. The final motor configuration is determined by the complete Siemens MLFB ordering code.
Key Features
- Genuine Siemens SIMOTICS S-1FT7 synchronous servo motor
- Permanent magnet synchronous motor technology
- Optimized for Siemens SINAMICS S120 servo drives
- Rated output power: 1.32 kW
- Rated speed: 4,500 RPM
- Rated torque: 2.4 Nm
- Stall torque (100 K): 7.0 Nm
- Maximum torque: 31 Nm
- Maximum mechanical speed: 9,000 RPM
- Natural cooling
- DRIVE-CLiQ encoder interface
- Incremental, single-turn absolute, and multiturn absolute encoder options
- Plain shaft or fitted key shaft options
- Optional holding brake
- IM B5 flange mounting
- Rotatable power connector
- Integrated temperature monitoring
- IP64 / IP65 / IP67 protection (variant dependent)
Technical Specifications
| Specification | Details |
|---|---|
| Product Family | SIMOTICS S-1FT7 |
| Part Number | 1FT7046-5AH7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Natural Cooling |
| Rated Power | 1.32 kW |
| Rated Speed | 4,500 RPM |
| Optimum Speed | 3,500 RPM |
| Rated Torque | 2.4 Nm |
| Stall Torque (100 K) | 7.0 Nm |
| Stall Torque (60 K) | 6.0 Nm |
| Maximum Torque | 31 Nm |
| Rated Current | 3.2 A |
| Stall Current (100 K) | 8.1 A |
| Stall Current (60 K) | 6.9 A |
| Maximum Current | 38 A |
| Maximum Mechanical Speed | 9,000 RPM |
| Maximum Converter Speed | 9,000 RPM |
| Number of Poles | 6 |
| Torque Constant | 0.87 Nm/A |
| Voltage Constant | 55.5 V/1000 RPM |
| Winding Resistance | 0.415 Ω |
| Rotating Field Inductance | 2.9 mH |
| Electrical Time Constant | 7 ms |
| Mechanical Time Constant | 1.2 ms |
| Thermal Time Constant | 35 min |
| Rotor Inertia | 7.52 × 10⁻⁴ kg·m² |
| Rotor Inertia (with Brake) | 8.39 × 10⁻⁴ kg·m² |
| Motor Weight | 9.3 kg |
| Motor Weight (with Brake) | 10.2 kg |
| Encoder Interface | DRIVE-CLiQ |
| Encoder Options | Incremental, Single-turn Absolute, Multiturn Absolute |
| Shaft Options | Plain Shaft or Fitted Key |
| Holding Brake | Optional |
| Mounting Arrangement | IM B5 Flange |
| Protection Class | IP64 / IP65 / IP67 (variant dependent) |
| Temperature Monitoring | Integrated Temperature Sensor |
| Compatible Drives | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
Technical specifications may vary depending on the selected MLFB configuration, encoder type, shaft version, and brake option.
Applications
- CNC Machine Tools
- Industrial Robotics
- Packaging Machinery
- Semiconductor Equipment
- Printing Machinery
- Pick-and-Place Systems
- Electronics Manufacturing
- Textile Machinery
- Automated Assembly Lines
- High-Speed Precision Motion Control