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Siemens 1FK7042-5AK71-1EH0

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1FK7042-5AK71-1EH0

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Marvo Stock ID MV-88DZ
HS Code 85015220
SKU 1FK7042-5AK71-1EH0
Category Motors and Encoders
Warranty 12 months
Weight (kg) 8.00
Length (mm) 480.00
Width (mm) 320.00
Height (mm) 320.00

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Specification & Description

Specification Description
Part Number 1FK7042-5AK71-1EH0
Manufacturer Siemens
Category Motors and Encoders
Motor Type Synchronous Servo Motor
Rated Power 1.02 kW
Rated Current 3.1 A
Rated Speed 6000 rpm
Rated Torque 3.0 Nm
Maximum Speed 9990 rpm (inverter), 9000 rpm (mechanical)
Moment of Inertia 3.450 kgcm²
Efficiency 89.0%
Number of Poles 4
Cooling Type Natural cooling
Degree of Protection IP64
Encoder System Encoder AM2048S/R: absolute encoder 2048 S/R, 4096 revolutions multi-turn, with EnDat interface
Shaft Height 48 mm
Holding Brake Permanent-magnet brake
Holding Torque 4.0 Nm
Voltage Constant at 20º C 44.0 V/1000*min¯¹
Winding Resistance at 20º C 1.20 Ω
Torque Constant 0.69 Nm/A
Thermal Time Constant 30 min
Net Weight of the Motor 5.4 kg
Shaft Torsional Stiffness 16000 Nm/rad
Electrical Time Constant 2.27 ms
Mechanical Time Constant 5.60 ms
Rotating Field Inductance 6.7 mH
Connector Size Design acc. to Code I
Shaft End Plain shaft
Temperature Monitoring KTY84 temperature sensor in the stator winding
Housing Colour Standard Siemens colour

The Siemens 1FK7042-5AK71-1EH0 is a high-performance synchronous servo motor renowned for its compact design and dynamic response. Engineered to deliver a power output of 1.02 kW and capable of reaching speeds up to 6000 rpm, this motor is an ideal choice for a wide range of automation applications. With a rated torque of 3.0 Nm and a moment of inertia of 3.450 kgcm², it ensures precise motion control and stability in demanding operational conditions.

This motor features a natural cooling system, which contributes to its efficiency and longevity, and it is equipped with an absolute encoder with EnDat interface for accurate positioning. The motor's electrical connectors are designed for flexibility, being rotatable and accommodating both signal and power connections. The inclusion of a holding brake enhances the safety and control of the motor, particularly in power-off scenarios.

The Siemens 1FK7042-5AK71-1EH0 boasts a robust construction with a degree of protection rated at IP64, making it suitable for use in environments where dust and moisture resistance is required. Its mechanical and electrical characteristics are finely tuned to deliver optimal performance, with a voltage constant of 44.0 V/1000 min¯¹ and a winding resistance of 1.20 Ω at 20º C.

This motor is a testament to Siemens' commitment to quality and innovation, providing a reliable and efficient solution for sophisticated automation tasks. Whether integrated into machine tools, packaging machinery, or other precision-demanding applications, the Siemens 1FK7042-5AK71-1EH0 is engineered to meet the rigorous standards of modern industry.

Commonly Asked Questions

Is my order covered by a warranty?

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Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

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Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Frequently Asked Questions

What are the key specifications of this synchronous servo motor?

This Siemens synchronous servo motor is designed for high performance with a rated power of 1.02 kW, a rated current of 3.1 A, and a maximum speed of 6000 rpm. It has a rated torque of 3.0 Nm and features natural cooling, a plain shaft, and an absolute encoder with EnDat interface.

Can this motor be used in a position control application?

Yes, the motor is equipped with an absolute encoder that provides precise position feedback, making it suitable for applications requiring accurate position control.

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.

Is there a holding brake option for this motor?

Yes, the motor comes with an optional holding brake that can secure the motor in position when power is not applied, enhancing safety and control in certain applications.

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 type of encoder system does the motor have?

The motor is equipped with an Encoder AM2048S/R, which is an absolute encoder with 2048 single-turn resolution and 4096 revolutions multi-turn capability, featuring an EnDat interface for high-resolution feedback.

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, which affects the dynamic response of the motor. A lower moment of inertia allows for quicker acceleration and deceleration, which is beneficial in dynamic applications.

How does the thermal time constant affect motor performance?

The thermal time constant indicates how quickly the motor reaches thermal equilibrium under load. A longer thermal time constant means the motor can run longer before reaching its maximum operating temperature, affecting duty cycle and performance.

What applications are suitable for this motor?

This motor is well-suited for a variety of applications including automation, CNC machinery, robotics, and any system requiring precise motion control and high-speed operation.

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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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