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Siemens
1FK7042-2AK71-1PA0
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 1FK7042-2AK71-1PA0 |
| Manufacturer | Siemens |
| Motor Type | Permanent-magnet synchronous motor |
| Rated Power | 0.94 kW |
| Rated Speed | 6000 rpm |
| Rated Torque | 3 Nm |
| Maximum Speed (Mechanical) | 9000 rpm |
| Maximum Speed (Inverter) | 9000 rpm |
| Rated Current | 4.40 A |
| Stall Current (60 K) | 2.5 A |
| Stall Current (100 K) | 3.55 A |
| Static Torque (60 K) | 1.5 Nm |
| Static Torque (100 K) | 2.50 Nm |
| Rated Torque (100 K) | 3.0 Nm |
| Moment of Inertia | 2.900 kgcm² |
| Efficiency | 89.0 % |
| Number of Poles | 4 |
| Cooling | Natural cooling |
| Degree of Protection | IP64 |
| Design | IM B5 (IM V1, IM V3) |
| Shaft Height | 48 mm |
| Radial Runout Tolerance | 0.040 mm |
| Vibration Severity Grade | Grade A |
| Concentricity Tolerance | 0.08 mm |
| Axial Runout Tolerance | 0.08 mm |
| Temperature Monitoring | Pt1000 temperature sensor |
| Housing Colour | Standard (Anthracite RAL 7016) |
| Electrical Connectors | Connectors for signals and power, rotatable |
| Shaft Extension | Feather key, without holding brake |
| Encoder System | Resolver R14DQ: resolver 14 bits (resolution 16384, internal 2-pole) |
| Winding Resistance at 20º C | 1.15 Ω |
| Voltage Constant at 20º C | 44.5 V/1000*min¯¹ |
| Mechanical Time Constant | 7.50 ms |
| Thermal Time Constant | 30 min |
| Net Weight of the Motor | 4.6 kg |
| Rotating Field Inductance | 8.6 mH |
| Torque Constant | 0.68 Nm/A |
| Shaft Torsional Stiffness | 15500 Nm/rad |
The Siemens 1FK7042-2AK71-1PA0 is a high-performance servo motor renowned for its precision and reliability in a variety of industrial applications. With a power output of 0.94 kW and an impressive maximum speed of 6000 rpm, this motor is designed to deliver consistent torque of 3 Nm, ensuring optimal performance for demanding motion control tasks.
Crafted with a focus on efficiency, the motor boasts an efficiency rating of 89.0%, making it a cost-effective solution for automation needs. The compact design, featuring natural cooling and a sleek anthracite RAL 7016 housing, allows for easy integration into existing systems without compromising on space.
Equipped with a resolver for accurate position sensing, the 1FK7042-2AK71-1PA0 ensures precise control and feedback, essential for applications where exact motion is critical. The motor's mechanical robustness is highlighted by its IP64 degree of protection and adherence to IM B5 mounting standards, which contribute to its durability and longevity in harsh industrial environments.
This Siemens servo motor is a versatile component suitable for a wide range of applications, from packaging and material handling to CNC machining and robotics. Its technical specifications, including a low moment of inertia and high radial runout tolerance, make it an ideal choice for systems requiring rapid acceleration and deceleration with minimal vibration.
Overall, the Siemens 1FK7042-2AK71-1PA0 servo motor stands out as a reliable and efficient solution for sophisticated automation tasks, offering a blend of performance, precision, and durability.
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Frequently Asked Questions
What are the key features of this servo motor?
This Siemens servo motor is known for its high efficiency of 89%, a rated speed of 6000 rpm, and a rated torque of 3 Nm. It operates optimally at 0.94 kW and has a maximum permissible speed of 9000 rpm. The motor is cooled naturally and comes with a resolver for position feedback.
Can this motor be used in compact spaces?
Yes, the motor is designed with a compact form factor, making it suitable for applications where space is limited. Its mechanical data indicates a shaft height of 48, which contributes to its compactness.
What type of cooling does the motor utilise?
The motor uses natural cooling, which means it relies on the natural convection of air to dissipate heat. This is a common and efficient method for maintaining the motor's temperature within operational limits without the need for additional cooling systems.
What is the degree of protection for this motor?
The motor has a degree of protection rated at IP64, which means it is protected against dust ingress and splashing water, making it suitable for various industrial environments.
What kind of feedback system does the motor have?
The motor is equipped with a resolver, specifically a Resolver R14DQ, which provides 14-bit resolution for accurate position feedback. This is essential for precise control in servo applications.
Is there a holding brake option for this motor?
This particular model comes without a holding brake. However, the design allows for the integration of a holding brake if your application requires one.
What is the motor's efficiency and how does it impact performance?
With an efficiency of 89%, this motor operates with less power loss compared to less efficient motors. This high efficiency leads to better performance, reduced energy consumption, and potentially lower operational costs.
What are the electrical characteristics of the motor?
The motor has a winding resistance of 1.15 Ω at 20º C, a voltage constant of 44.5 V/1000*min¯¹, and an electrical time constant of 2.15 ms. These characteristics are important for understanding the motor's performance in electrical terms and for integration with compatible drive systems.
How does the motor's moment of inertia affect its operation?
The motor has a moment of inertia of 2.900 kgcm², which influences the motor's acceleration and deceleration capabilities. A lower moment of inertia allows for quicker changes in speed, which is beneficial for dynamic applications.
What applications is this motor typically used for?
This Siemens servo motor is suitable for a wide range of applications, including automation systems, CNC machinery, packaging machines, and other precision motion control tasks where high speed, torque, and accurate positioning are required.
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