Product Overview

The Siemens 1FK7063-2AF71-1AG0 SIMOTICS S Synchronous Motor is a permanent-magnet synchronous motor from the SIMOTICS S-1FK7 compact motor family. It is intended for industrial motion-control applications that require controlled rotation, repeatable speed regulation, and predictable torque delivery. The motor uses natural cooling, a plain shaft, an incremental encoder, and a KTY84 temperature sensor, making its configuration suitable for integration into compatible Siemens servo-drive systems.

Unlike a conventional motor operated primarily at a fixed supply frequency, a servo motor works with a drive that regulates electrical current according to the machine’s motion requirements. The drive controls the motor’s torque and speed, while encoder feedback provides information about shaft movement. This arrangement supports positioning tasks, controlled acceleration, and coordinated operation with other machine axes.

The 1FK7063-2AF71-1AG0 has a rated power of 2.3 kW and a rated speed of 3,000 rpm. Its rated torque is 7.3 Nm under the specified 100 K temperature-rise condition, while its static torque rating at the same condition is 11 Nm. These values provide a starting point for evaluating the motor against the torque-speed requirements of an application. The final selection must also account for acceleration, load inertia, duty cycle, and the capabilities of the connected drive.

A defining feature of this model is its incremental SIN/COS encoder with a resolution of 2,048 signal periods per revolution. The encoder provides motion feedback to the drive through its compatible feedback interface. This information supports speed regulation and position control, but the system’s reference behavior differs from that of a motor equipped with an absolute encoder. Applications that require a known machine position after power restoration may need a homing procedure or another reference-management method.

The motor also incorporates a KTY84 temperature sensor in the stator winding. The sensor supplies temperature information for compatible monitoring and protection functions. When correctly connected and configured, this feedback helps the drive system monitor motor thermal conditions and respond appropriately to excessive temperature.

Its plain-shaft design provides a direct mechanical interface for suitable couplings and transmission components. This arrangement can be useful when the machine designer needs to select a coupling based on the connected load, alignment requirements, and mechanical transmission. Correct coupling selection is essential because excessive radial or axial forces can affect bearing life and operating accuracy.

The 1FK7063-2AF71-1AG0 uses natural cooling and an IM B5 flange mounting arrangement, with IM V1 and IM V3 mounting positions supported as specified for the motor. Its IP64 protection rating defines the permitted protection against dust ingress and water splashing. Actual suitability depends on the installation environment, cable connections, and the conditions stated in the equipment documentation.

The motor is supplied without an integrated holding brake. Where a machine must retain its position when motor torque is removed, the designer must evaluate the mechanical load and the need for a separate holding arrangement. A brake requirement should be considered during motor selection rather than assumed from the general 1FK7 product family.

Typical applications include packaging equipment, printing machinery, automated assembly systems, production-line mechanisms, and other industrial machines requiring regulated rotary movement. The motor’s suitability for a specific axis depends on the actual motion profile, load characteristics, feedback requirements, and drive compatibility.

The Siemens 1FK7063-2AF71-1AG0 combines permanent-magnet synchronous motor technology with incremental feedback and winding-temperature monitoring. When correctly matched to a compatible drive and mechanical transmission, it can support controlled movement in industrial automation systems.

Technical Specifications

Product Features

• Permanent-magnet synchronous motor: Produces controlled rotary torque when operated with a compatible servo drive.
• 2.3 kW rated power: Supports industrial motion applications within the motor’s specified electrical and thermal limits.
• 3,000 rpm rated speed: Suits motion axes requiring regulated rotational speed and controlled acceleration.
• Incremental SIN/COS encoder: Supplies shaft-motion feedback for compatible drive-control functions.
• 2,048 signal periods per revolution: Provides encoder feedback suitable for closed-loop motion regulation.
• KTY84 winding-temperature sensor: Supports monitoring of motor thermal conditions through compatible drive functions.
• Plain shaft design: Allows the use of suitable couplings selected for the connected mechanical transmission.
• Natural cooling: Dissipates heat through the motor’s construction without requiring a separate forced-air cooling unit.
• IM B5 flange mounting: Supports installation in compatible machine structures and servo-axis assemblies.
• No integrated holding brake: Allows the machine designer to evaluate holding requirements independently when selecting the motor configuration.
• IP64 enclosure protection: Provides defined protection against dust ingress and water splashing under the specified conditions.

Working Principle

The Siemens 1FK7063-2AF71-1AG0 converts electrical energy into mechanical rotation through the interaction between its stator-generated magnetic field and permanent magnets in the rotor. A compatible servo drive regulates the current supplied to the motor windings, controlling the torque and speed according to the motion command.

Motion Command → Servo Drive → Motor Rotation → Encoder Feedback → Control Correction

The motion controller generates the required movement based on the machine sequence. The servo drive processes the command and controls the electrical current supplied to the motor. By regulating the magnitude and timing of the current, the drive produces the torque needed to accelerate, decelerate, or maintain the requested speed.

As the shaft rotates, the incremental SIN/COS encoder generates feedback signals corresponding to shaft movement. The encoder uses 2,048 signal periods per revolution and supplies the feedback required by compatible drive-control electronics. The drive processes this information to determine movement and speed, then adjusts its output to follow the requested operating profile.

Because the encoder is incremental rather than absolute, the system must establish a valid reference when the application requires a known machine position. Depending on the machine design and drive configuration, this may involve homing against a reference switch, a limit position, or another defined mechanical reference. The required procedure should be established during commissioning.

The motor’s KTY84 temperature sensor measures the temperature associated with the stator winding. Its signal can be used by compatible drive electronics to monitor thermal conditions. Correct sensor wiring and parameterization are important because inaccurate temperature information can interfere with motor protection and thermal monitoring.

The plain shaft transfers torque to the connected mechanical system through a suitable coupling or transmission. The coupling must accommodate the intended torque and speed while maintaining appropriate alignment. Mechanical misalignment, excessive loading, or an unsuitable transmission can introduce vibration and reduce bearing service life.

Natural cooling removes heat from the motor through its housing and surrounding environment. The permissible continuous load therefore depends partly on the ambient temperature, mounting arrangement, ventilation around the motor, and duty cycle. Repeated acceleration or high-torque operation must be assessed against the motor’s thermal limits.

The motor is supplied without an integrated holding brake. If the application requires a load to remain stationary when drive torque is unavailable, the machine design must provide an appropriate holding solution where necessary. The required arrangement depends on the load, the consequences of movement, and the machine’s safety requirements.

During normal operation, the motion controller defines the movement, the drive regulates motor current, and the encoder provides feedback about shaft motion. This closed-loop arrangement supports controlled speed and positioning when the electrical configuration, feedback parameters, and mechanical system are correctly matched.

Role in the Industrial Control Architecture

The 1FK7063-2AF71-1AG0 serves as the rotary actuator in a servo-motion axis. It receives controlled electrical power from a compatible drive and returns incremental encoder feedback that helps the drive regulate motor movement.

Motion Controller → SINAMICS Servo Drive → 1FK7063-2AF71-1AG0 → Mechanical Load

The motor’s performance depends on coordination between the controller, drive, feedback devices, and mechanical load. The incremental encoder provides movement feedback, while the temperature sensor supports thermal monitoring. The controller and drive determine how this information is used during operation.

Industrial Applications

Installation and Maintenance

1. Confirm drive compatibility: Check the motor’s rated power, current, speed, encoder type, and temperature-sensor requirements against the selected drive.
2. Inspect the motor before installation: Check the shaft, flange, connector, and enclosure for damage that could affect mechanical or electrical performance.
3. Prepare the mounting structure: Ensure that the machine flange and supporting structure are suitable for the intended mounting arrangement and operating loads.
4. Align the mechanical coupling: Select a coupling suitable for the shaft and load, and follow the specified alignment tolerances to avoid excessive bearing forces.
5. Connect the motor power cable: Use the appropriate cable and connector arrangement, following the required grounding, shielding, and electrical installation practices.
6. Connect the incremental encoder: Verify the encoder cable, connector compatibility, and feedback wiring before enabling the drive.
7. Connect the temperature sensor: Confirm that the KTY84 sensor is wired to a compatible input and configured correctly in the drive system.
8. Configure drive parameters: Enter the applicable motor data and configure the feedback interface, operating limits, and control mode.
9. Perform the required homing procedure: Establish the machine reference where absolute position is required, and verify that the reference method is repeatable.
10. Test movement at commissioning speed: Check the rotation direction, encoder feedback, acceleration, deceleration, and travel limits before production operation.
11. Monitor temperature and vibration: Investigate abnormal heating, unusual noise, or vibration that may indicate overload, alignment issues, or mechanical wear.
12. Maintain configuration records: Retain the motor identification, drive parameters, encoder settings, homing procedure, and maintenance history for troubleshooting.

If the axis exhibits positioning errors, inspect the encoder wiring, feedback configuration, homing reference, coupling alignment, and mechanical load. If thermal warnings occur, check the KTY84 sensor connection, drive parameters, duty cycle, and cooling conditions before returning the equipment to normal operation.

Related Components

Recommended Related Models

Key Advantages

• Provides controlled rotary movement for compatible servo-drive systems.
• Uses incremental SIN/COS feedback for closed-loop motion regulation.
• Includes a KTY84 temperature sensor for thermal monitoring.
• Supports natural cooling and flange-mounted machine integration.
• Offers a plain shaft for flexible coupling and transmission selection.
• Allows holding-brake requirements to be addressed separately in the machine design.

Technical FAQs

What does the IC2048S/R encoder contribute to motor operation?

The IC2048S/R incremental SIN/COS encoder provides 2,048 signal periods per revolution. Its feedback supports speed regulation and position control through a compatible drive. Because it is incremental, applications requiring a known position after startup must use an appropriate reference-management method.

Why is the KTY84 temperature sensor relevant to drive commissioning?

The KTY84 sensor provides temperature information associated with the stator winding. Correct wiring and drive configuration allow compatible monitoring functions to use this signal when assessing motor thermal conditions.

What should be considered when replacing a motor with a plain-shaft configuration?

The replacement must match the required torque, speed, mounting arrangement, coupling interface, and feedback system. The mechanical coupling must also accommodate the shaft arrangement and alignment requirements of the connected equipment.

Does the 1FK7063-2AF71-1AG0 provide holding torque when the drive is disabled?

This configuration has no integrated holding brake. Any required stationary holding capability must be evaluated against the mechanical load and the control system’s operating conditions. The motor should not be assumed to hold a suspended or otherwise load-sensitive mechanism when drive torque is unavailable.