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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 1FK7042-5AF71-1FG0 |
| Alternative Part Number | 1FK70425AF711FG0 |
| Manufacturer | Siemens |
| Motor Type | SIMOTICS S synchronous servo motor 1FK7 Compact |
| Rated Power | 0.82 kW |
| Supply Voltage | 480 V |
| Rated Current | 1.95 A |
| Rated Speed | 3000 rpm |
| Rated Torque | 3 Nm |
| Maximum Speed | 9000 rpm (mechanical), 6500 rpm (inverter) |
| Maximum Torque | 10.5 Nm |
| Efficiency | 89.0% |
| Cooling Type | Naturally cooled |
| Degree of Protection | IP64 |
| Mounting Design | IM B5 (IM V1, IM V3) |
| Encoder System | Encoder AM22DQ: absolute encoder 22 bits + 12 bits multi-turn |
| Moment of Inertia | 3.010 kgcm² |
| Shaft Height | 48 |
| Radial Runout Tolerance | 0.040 mm |
| Axial Runout Tolerance | 0.08 mm |
| Vibration Severity Grade | Grade A |
| Temperature Monitoring | KTY84 temperature sensor in the stator winding |
| Electrical Connectors | Connectors for signals and power rotatable |
| Shaft End | Plain shaft without holding brake |
| Winding Resistance | 5.15 Ω at 20º C |
| Voltage Constant | 89.0 V/1000*min¯¹ at 20º C |
| Mechanical Time Constant | 5.60 ms |
| Thermal Time Constant | 30 min |
| Net Weight of the Motor | 4.9 kg |
| Shaft Torsional Stiffness | 16000 Nm/rad |
| Torque Constant | 1.40 Nm/A |
| Rotating Field Inductance | 29.0 mH |
The Siemens 1FK7042-5AF71-1FG0 is a high-performance synchronous servo motor renowned for its compact design and efficient operation. Engineered to deliver a power output of 0.82 kW and a rated torque of 3 Nm at a speed of 3000 rpm, this motor is an ideal solution for a wide range of automation applications. Its natural cooling system ensures reliable operation without the need for additional cooling measures.
This motor is part of the SIMOTICS S-1FK7 Compact series, which is designed to offer optimal performance in a small footprint, making it suitable for installations where space is at a premium. The motor features a rated voltage of 480 V and a rated current of 1.95 A, with a high degree of protection at IP64, ensuring durability and resilience in various industrial environments.
The 1FK7042-5AF71-1FG0 is equipped with an absolute encoder system that provides precise feedback, essential for applications requiring high accuracy and control. The encoder offers a high resolution with 22 bits single-turn and 12 bits multi-turn capabilities, allowing for accurate positioning over a wide range of motion.
With its robust construction and reliable performance, the Siemens 1FK7042-5AF71-1FG0 synchronous servo motor is a versatile component suitable for a variety of demanding applications, including machine tools, packaging machinery, and material handling systems. Its adherence to high-quality standards ensures that it meets the rigorous demands of industrial automation.
Commonly Asked Questions
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Frequently Asked Questions
What are the key features of this synchronous servo motor?
The key features include a rated power of 0.82 kW, a rated voltage of 480 V, a rated current of 1.95 A, and a rated speed of 3000 rpm. It also has a rated torque of 3 Nm and is naturally cooled with a compact design, suitable for a wide range of industrial applications.
Can this motor be used in precision applications?
Yes, this motor is designed for precision applications, featuring an absolute encoder with high resolution for accurate positioning and control.
What type of cooling method is used in this motor?
This 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 has 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 motor's moment of inertia?
The moment of inertia is a measure of the motor's resistance to changes in rotational speed. A lower value typically means the motor can accelerate and decelerate more quickly, which is beneficial for dynamic applications.
Does this motor come with a holding brake?
No, this model does not include a holding brake. It is equipped with a plain shaft and is designed for applications where a holding brake is not required.
What type of encoder does the motor use?
The motor is equipped with an Encoder AM22DQ, which is an absolute encoder with a resolution of 22 bits and a multi-turn range of 4096 revolutions.
What are the mechanical data specifications for this motor?
The mechanical data specifications include a radial runout tolerance of 0.040 mm, an axial runout tolerance of 0.08 mm, and a shaft torsional stiffness of 16000 Nm/rad.
How is the temperature within the motor monitored?
Temperature monitoring is achieved through a KTY84 temperature sensor located in the stator winding, ensuring the motor operates within safe temperature ranges.
What applications is this motor typically used for?
This motor is typically used in applications requiring high precision and dynamic performance, such as CNC machinery, robotics, packaging machines, and other automation systems.
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