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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 1FK7032-2AK71-1RA0 |
| Alternative Part Number | 1FK70322AK711RA0 |
| Manufacturer | Siemens |
| Rated Speed | 6000 rpm |
| Rated Torque | 0.8 Nm (at 100 K) |
| Maximum Torque | 4.5 Nm |
| Rated Current | 1.3 A (at 60 K), 1.7 A (at 100 K) |
| Stall Current | 1.1 Nm (at 100 K) |
| Optimum Power | 0.5 kW |
| Maximum Permissible Speed | 10000 rpm (mechanical and inverter) |
| Efficiency | 88.0 % |
| Moment of Inertia | 0.650 kgcm² |
| Motor Type | Permanent-magnet synchronous motor |
| Cooling | Natural cooling |
| Degree of Protection | IP64 |
| Encoder System | Encoder AM20DQI: absolute encoder 20 bits (resolution 1048576, encoder-internal 512 S/R) + 12 bits multi-turn (4096 revolutions) |
| Net Weight of the Motor | 2.7 kg |
| Voltage Constant at 20º C | 45.0 V/1000*min¯¹ |
| Winding Resistance at 20º C | 5.05 Ω |
| Rotating Field Inductance | 17.3 mH |
| Torque Constant | 0.67 Nm/A |
| Thermal Time Constant | 25 min |
| Mechanical Time Constant | 3.45 ms |
| Shaft Torsional Stiffness | 6000 Nm/rad |
| Housing Colour | Standard (Anthracite RAL 7016) |
| Electrical Connectors | Connectors for signals and power, rotatable |
| Shaft Extension | Feather key |
| Holding Brake | Without holding brake |
The Siemens 1FK7032-2AK71-1RA0 is a high-performance synchronous motor from the SIMOTICS S-1FK7 family, designed to deliver precise and dynamic motion control for a wide range of industrial applications. This compact and robust motor is characterised by its natural cooling method and a high degree of protection, making it suitable for use in challenging environments.
With an impressive rated speed of 6000 rpm and a rated torque of 0.8 Nm at 100 K, this motor is engineered for optimum performance. It boasts a high efficiency of 88.0%, ensuring that energy consumption is minimised while maximising output. The motor's moment of inertia is 0.650 kgcm², which contributes to its quick response and agility in operation.
The 1FK7032-2AK71-1RA0 is equipped with an absolute encoder system, providing precise feedback and enabling accurate positioning. The encoder AM20DQI features a resolution of 1048576 with an encoder-internal 512 S/R and a 12-bit multi-turn capability for a traversing range of 4096 revolutions. This level of precision is essential for applications requiring exact motion sequences and repeatability.
Mechanically, the motor is designed with a radial runout tolerance of 0.035 mm and an axial runout tolerance of 0.08 mm, ensuring smooth operation and reduced vibration. The concentricity tolerance is also maintained at 0.08 mm, which is critical for maintaining precision in high-speed applications.
The motor's housing is finished in a standard anthracite colour (RAL 7016), and it features rotatable connectors for signals and power, providing flexibility in installation and maintenance. The shaft extension comes with a feather key, and the motor is designed without a holding brake, which is ideal for continuous movement applications.
Overall, the Siemens 1FK7032-2AK71-1RA0 is a reliable and efficient solution for sophisticated automation tasks, offering a blend of performance, precision, and durability that is well-suited for a variety of industrial settings.
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Frequently Asked Questions
What are the key features of this Siemens motor?
This Siemens motor is a permanent-magnet synchronous motor with natural cooling, featuring a high efficiency of 88%, a rated speed of 6000 rpm, and a rated torque of 0.8 Nm. It also includes an absolute encoder with a resolution of 1048576 and a multi-turn range of 4096 revolutions.
Can this motor operate at speeds higher than its rated speed?
Yes, the motor has a maximum permissible speed of 10000 rpm, both mechanically and for the inverter. However, operating continuously at speeds beyond the rated speed may affect the motor's lifespan and performance.
What type of cooling does the motor use?
The motor utilises natural cooling, which means it relies on the natural convection of air to dissipate heat without the need for additional cooling mechanisms.
What is the degree of protection for this motor?
The motor is designed with a degree of protection rated at IP64, which indicates a good level of protection against dust ingress and splashing water.
What is the significance of the encoder system in this motor?
The encoder system provides precise position and speed feedback, which is crucial for applications requiring high accuracy and control. The absolute encoder in this motor offers a high resolution for detailed positioning.
What are the electrical characteristics of this motor?
The motor has a rated current of 1.3 A, a winding resistance of 5.05 Ω at 20º C, and a voltage constant of 45.0 V/1000 min¯¹. These characteristics are important for determining compatibility with drive systems and for ensuring optimal performance.
What are the mechanical specifications of this motor?
Mechanically, the motor has a moment of inertia of 0.650 kgcm², a shaft torsional stiffness of 6000 Nm/rad, and a net weight of 2.7 kg. These factors contribute to the motor's dynamic response and stability during operation.
How is the temperature of the motor monitored?
The motor is equipped with a Pt1000 temperature sensor, which allows for continuous monitoring of the motor's temperature to prevent overheating and to ensure reliable operation.
What applications is this motor suitable for?
Due to its compact size, high efficiency, and precise control, this motor is well-suited for a variety of applications, including automation systems, CNC machinery, and robotics where accurate positioning and speed control are essential.
How does the motor's natural cooling affect its performance?
Natural cooling is efficient for standard operating conditions, but in high-load or high-ambient temperature environments, additional cooling measures might be necessary to maintain optimal performance and prevent thermal overload.
