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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 1FT7042-5AF71-1DG1-Z |
| Manufacturer | Siemens |
| Rated Speed | 3,000 rpm |
| Number of Poles | 6 |
| Rated Torque (100 K) | 2.7 Nm |
| Rated Current | 2.10 A |
| Static Torque (60 K) | 2.5 Nm |
| Static Torque (100 K) | 3.0 Nm |
| Stall Current (60 K) | 1.80 A |
| Stall Current (100 K) | 2.10 A |
| Rotor Moment of Inertia | 2.81 kgcm² |
| Efficiency | 92.0 % |
| Torque Constant | 1.38 Nm/A |
| Voltage Constant at 20º C | 87.5 V/1000 min⁻¹ |
| Winding Resistance at 20º C | 3.60 Ω |
| Rotary Field Inductance | 21.4 mH |
| Electrical Time Constant | 5.90 ms |
| Mechanical Time Constant | 1.60 ms |
| Thermal Time Constant | 20 min |
| Shaft Torsional Stiffness | 11,700 Nm/rad |
| Net Weight of the Motor | 4.6 kg |
| Motor Type | Permanent-magnet synchronous motor, Compact |
| Shaft Height | 48 mm |
| Cooling | Natural cooling |
| Radial Runout Tolerance | 0.040 mm |
| Concentricity Tolerance | 0.080 mm |
| Axial Runout Tolerance | 0.080 mm |
| Vibration Severity Grade | Grade A |
| Degree of Protection | IP65 |
| Design | Code IIM B5 (compatible with 1FT6) |
| Temperature Monitoring | Pt1000 temperature sensor |
| Housing Colour | Standard (pearl dark grey similar to RAL 9023) |
| Shaft End Type | Plain shaft |
| Sensor Design | Encoder IC22DQ: incremental encoder 22 bits (resolution 4194304, encoder-internal 2048 S/R) + commutation position 11 bits |
| Electrical Connection | Connector turnable, Connector size 1 |
| Optimum Operating Point | Optimum speed 3,000 rpm, Optimum power 0.8 kW |
| Limiting Data | Max. permissible speed (mech.) 9,000 rpm, Max. permissible speed (inverter) 6,600 rpm, Maximum torque 13.0 Nm, Maximum current 11.00 A |
| Recommended Motor Module | Rated inverter current 3.00 A, Maximum inverter current 9.00 A, Maximum torque 10.9 Nm |
| Special Design | R06 |
The Siemens 1FT7042-5AF71-1DG1-Z is a high-performance synchronous motor renowned for its precision and reliability in a variety of industrial applications. This compact motor is designed with a permanent magnet and operates efficiently with a rated speed of 3,000 rpm. It boasts a rated torque of 2.7 Nm at 100 K and a rated current of 2.10 A, making it suitable for tasks requiring consistent and controlled motion.
With an impressive efficiency of 92.0%, the motor ensures optimal performance while maintaining energy conservation. The motor's physical constants include a torque constant of 1.38 Nm/A and a voltage constant of 87.5 V/1000 min-1 at 20º C, which contribute to its precise operation. The winding resistance at 20º C is 3.60 Ohm, and it has a rotary field inductance of 21.4 mH.
Mechanically, the motor is built to last with a robust design featuring natural cooling, radial runout tolerance of 0.040 mm, and concentricity tolerance of 0.080 mm. It is equipped with a Pt1000 temperature sensor for temperature monitoring and has a high degree of protection rated at IP65, ensuring it is well-protected against dust and water ingress.
The motor includes an incremental encoder with 22 bits resolution and an additional 11 bits for commutation position, enhancing its precision in feedback applications. The electrical connection is facilitated by a turnable connector, making installation and maintenance straightforward.
This motor is particularly suited for applications where high dynamics and precision are paramount, such as in machine tools, production machinery, and robotics. Its optimal operating point at 3,000 rpm and optimum power of 0.8 kW make it a versatile choice for engineers and technicians looking for a reliable motor solution.
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Frequently Asked Questions
What type of motor is this Siemens part?
The Siemens part in question is a permanent-magnet synchronous motor, which is compact and designed for high performance and dynamic applications.
What is the rated speed of this motor?
The rated speed of the motor is 3,000 revolutions per minute (rpm), making it suitable for applications requiring a high-speed operation.
Can you provide details on the torque specifications?
Certainly, the motor has a rated torque of 2.7 Nm at 100 K, a static torque of 2.5 Nm at 60 K, and 3.0 Nm at 100 K. It also has a maximum torque capability of 13.0 Nm.
What are the electrical characteristics of this motor?
The motor has a rated current of 2.10 A, a stall current of 1.80 A at 60 K and 2.10 A at 100 K, a torque constant of 1.38 Nm/A, and a voltage constant of 87.5 V/1000 min-1 at 20º C.
What is the efficiency rating of this motor?
This Siemens motor boasts an efficiency rating of 92.0%, which is indicative of its ability to convert electrical power to mechanical power with minimal losses.
What kind of encoder does the motor use?
The motor is equipped with an incremental encoder IC22DQ, which has a resolution of 4194304 and an encoder-internal 2048 S/R, plus a commutation position of 11 bits.
What is the degree of protection for this motor?
The motor is designed with a degree of protection rated at IP65, ensuring that it is dust-tight and protected against water jets from any direction.
What are the mechanical specifications like shaft height and weight?
The shaft height of the motor is 48 mm, and it has a net weight of 4.6 kg, making it a robust option for various industrial applications.
What is the maximum permissible speed of the motor?
The maximum permissible mechanical speed of the motor is 9,000 rpm, while the maximum permissible speed when using an inverter is 6,600 rpm.
What are the recommended operating conditions for this motor?
The optimum operating point for the motor is at a speed of 3,000 rpm and power of 0.8 kW. It is recommended to operate within these parameters for the best performance.
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