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- Siemens
- 1FK7060-5AF71-1KG5
- Synchronous Servo Motor
- Germany
- 63 mm
- 7.003 kg
- Xiamen, China
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Product Overview
The Siemens 1FK7060-5AF71-1KG5 SIMOTICS S Synchronous Servo Motor is a permanent-magnet servo motor from the 1FK7 Compact family. It is intended for automated machinery where controlled rotary motion, repeatable positioning, and coordinated movement are required. Paired with a compatible SINAMICS drive, the motor can operate as part of a positioning axis, feed mechanism, or synchronized production system.
In a packaging machine, a servo motor may advance material to a defined position before a cutting or sealing operation. In an assembly cell, it may move a fixture between loading, processing, and inspection stations. These applications require controlled acceleration and deceleration rather than continuous rotation alone. The drive must manage motor current and speed while coordinating movement with the machine controller.
The 1FK7060-5AF71-1KG5 uses a naturally cooled, permanent-magnet synchronous motor construction. Its basic absolute encoder with an EnDat interface and DRIVE-CLiQ connection supports integration with compatible drive systems. The encoder supplies rotor-position information needed for controlled motor operation, while the drive processes the motion commands issued by the automation controller.
This variant has a smooth shaft and no holding brake. The smooth shaft is suitable for compatible coupling arrangements, but the mating component must be selected for the actual shaft geometry and transmitted torque. Because the motor does not include a holding brake, applications that require the shaft to remain mechanically secured when power is removed need a separate solution appropriate to the machine’s safety and load-holding requirements.
The motor’s IP65 protection rating, with additional IP67 protection at the drive-end flange, is relevant when assessing the installation environment. Cable connections, mating interfaces, and mounting arrangements must be suitable for the conditions in which the motor will operate. Protection at the motor housing does not automatically make the entire installed assembly waterproof.
For maintenance engineers, the most important considerations are drive compatibility, encoder communication, mechanical alignment, and thermal loading. If a machine develops positioning errors or unstable motion, the cause may lie in the feedback configuration, the coupling, the load, or the drive parameters rather than the motor alone.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 1FK7060-5AF71-1KG5 |
| Product Type | SIMOTICS S Synchronous Servo Motor |
| Product Family | SIMOTICS S 1FK7 Compact |
| Motor Technology | Permanent-Magnet Synchronous Motor |
| Motor Frame | 1FK7060 |
| Rated Speed | 3,000 rpm |
| Rated Power | 1.48 kW |
| Rated Torque | 4.7 Nm |
| Static Torque at 100 K Temperature Rise | 6.0 Nm |
| Rated Current | 3.7 A |
| Number of Poles | 8 |
| Cooling Method | Natural Cooling |
| Encoder System | Basic absolute encoder, EnDat interface |
| Encoder Resolution | 32 pulses per revolution |
| Feedback Interface | DRIVE-CLiQ |
| Shaft Design | Smooth shaft |
| Holding Brake | Not included |
| Mounting Arrangement | IM B5, IM V1, IM V3 |
| Electrical Connection | Power connector and signal connection bracket |
| Connector Orientation | Rotatable by 270° |
| Protection Rating | IP65; IP67 additionally at the drive-end flange |
| Shaft Height | 63 mm |
| Weight | 7.003 kg |
Product Features
- Permanent-magnet synchronous motor: Converts controlled electrical input into rotary motion for servo-driven machinery.
- Compact 1FK7 construction: Supports integration into industrial machines with a defined motor mounting arrangement.
- 3,000 rpm rated speed: Suits motion systems operating within the motor’s specified speed and torque envelope.
- Basic absolute encoder: Supplies absolute position information through the specified feedback system.
- DRIVE-CLiQ interface: Supports communication with compatible Siemens drive equipment.
- Smooth shaft: Accommodates suitable coupling arrangements without a keyed shaft connection.
- Brake-free configuration: Avoids an integrated holding brake where the application does not require one.
- Natural cooling: Uses the motor’s specified cooling arrangement without a separate motor-mounted fan.
- Rotatable connectors: Allows adjustment of the power and signal connector orientation during installation.
- Enhanced flange protection: Combines IP65 motor protection with additional IP67 protection at the drive-end flange.
Working Principle
The 1FK7060-5AF71-1KG5 produces torque through the interaction between the magnetic field generated by the stator windings and the permanent magnets in the rotor. A compatible servo drive regulates the current supplied to the windings, controlling the motor’s acceleration, speed, and movement.
Motion Command → SINAMICS Servo Drive → Motor Windings → Rotor Rotation → Mechanical Load
When the controller requests a positioning movement, the drive calculates the required electrical response and supplies the motor with controlled current. The resulting torque accelerates the shaft and moves the connected mechanism. As the axis approaches its target, the drive adjusts the motor output to achieve the commanded position and speed profile.
The basic absolute encoder provides rotor-position information through its EnDat interface and DRIVE-CLiQ connection. This feedback allows compatible Siemens drive equipment to identify motor position and regulate motion. Correct communication between the encoder and drive is essential for commissioning and stable operation.
For example, on an automated indexing table, the motor may rotate the table through a defined angle before a workstation performs its operation. The drive controls the movement, and feedback supports accurate positioning. If the table has excessive inertia or the coupling introduces mechanical play, the axis may overshoot or require additional settling time.
The smooth shaft transfers torque through a compatible coupling. Correct alignment is particularly important because angular or parallel misalignment can increase bearing loads, vibration, and wear. The coupling must also suit the operating speed and torque of the application.
Natural cooling means that heat generated during operation is dissipated through the motor’s designed thermal path. Continuous high torque, frequent acceleration, and short repetitive cycles can increase thermal loading. Motor sizing should therefore account for the actual motion profile and operating duty, rather than relying solely on rated speed.
Because this model has no integrated holding brake, the motor should not be treated as a brake-equipped axis when the drive is disabled. Where a vertical axis or external load could move under gravity, the machine requires a suitable load-holding arrangement independent of the motor’s normal torque control.
Role in a Siemens SIMOTICS S Servo Drive System
The 1FK7060-5AF71-1KG5 functions as the rotary actuator in a servo-controlled axis. It converts the drive’s electrical output into mechanical movement, while the encoder provides position feedback and the machine controller coordinates motion with other production equipment.
Machine Controller → SINAMICS Servo Drive → 1FK7060-5AF71-1KG5 → Coupling → Machine Axis
| System Component | Function |
|---|---|
| Siemens 1FK7060-5AF71-1KG5 | Produces controlled rotary motion |
| SINAMICS Servo Drive | Regulates motor current and executes the configured motion-control functions |
| Machine Controller | Generates motion commands and coordinates machine sequences |
| Basic Absolute Encoder | Supplies rotor-position information |
| DRIVE-CLiQ Connection | Provides the specified feedback communication interface |
| Motor Power Cable | Carries electrical power from the drive to the motor |
| Mechanical Coupling | Transfers torque from the smooth shaft to the driven mechanism |
| Gearbox or Transmission | Adjusts output speed and torque when required |
| Machine Axis | Performs the required rotary or positioning movement |
| External Holding Device | Retains a load when the application requires holding with the motor de-energized |
The drive, encoder, and mechanical transmission must be configured as one coordinated axis. Where the application requires load retention after power removal, the external holding arrangement must be evaluated separately from the motor’s normal servo function.
Industrial Applications
| Application | Typical Use |
|---|---|
| Packaging Machinery | Driving indexing mechanisms and controlling repeatable material feed |
| Automated Assembly | Positioning components and fixtures during assembly sequences |
| Printing Equipment | Controlling feed rollers and synchronized rotary mechanisms |
| Labeling Systems | Moving products or feed mechanisms through defined operating positions |
| Material Handling | Operating rotary transfer mechanisms and positioning axes |
| Machine Tools | Driving suitable feed or positioning axes within the motor’s operating limits |
| Inspection Equipment | Positioning parts and fixtures for repeatable measurement |
| Automated Production Lines | Synchronizing rotary motion with sensors and machine-cycle timing |
| Industrial Indexing Tables | Moving workpieces between stations at defined angular positions |
| Special-Purpose Machinery | Controlling application-specific mechanisms that require servo-regulated movement |
The motor is most suitable for applications where the torque, speed, encoder interface, and mechanical arrangement match the required axis performance. Vertical or gravity-loaded mechanisms need particular attention because this configuration does not include an integrated holding brake.
Installation and Maintenance
- Inspect the motor designation: Confirm that the installed unit is the 1FK7060-5AF71-1KG5 and that the electrical and mechanical interfaces match the machine configuration.
- Check drive compatibility: Use a compatible Siemens servo drive configured for the motor’s rated data and DRIVE-CLiQ feedback interface.
- Prepare the mounting surface: Remove contamination from the mounting flange and inspect the mating surface for damage or uneven contact.
- Align the coupling: Ensure that the motor shaft and driven shaft are aligned within the coupling manufacturer’s permitted tolerances.
- Secure the mechanical connection: Install the coupling according to its specified assembly procedure and ensure that torque can be transferred without excessive shaft loading.
- Connect the power cable: Check the power connector, protective grounding, cable condition, and connection arrangement before energizing the drive.
- Connect the feedback interface: Establish the DRIVE-CLiQ connection and check the encoder communication status during commissioning.
- Configure the drive: Enter the applicable motor data and confirm that the encoder is identified correctly by the drive system.
- Test movement at low speed: Run a controlled initial movement and observe the motor direction, feedback response, vibration, and drive diagnostics.
- Assess load retention: For vertical axes or gravity-loaded mechanisms, verify the external holding arrangement before allowing the motor to be de-energized.
- Monitor thermal and mechanical behavior: Investigate abnormal heating, vibration, noise, or changes in positioning accuracy during operation.
- Record service results: Document the motor designation, drive settings, feedback status, coupling inspection, and corrective maintenance performed.
When a drive reports an encoder or motor-identification fault, inspect the feedback connection and drive configuration before replacing the motor. For motion problems, assess the mechanical coupling and load inertia alongside the electrical diagnostics.
Related Components
| Component | Function |
|---|---|
| Siemens 1FK7060-5AF71-1KG5 | SIMOTICS S synchronous servo motor with basic absolute encoder |
| Compatible SINAMICS Servo Drive | Supplies regulated motor current and controls axis movement |
| SIMATIC Motion Controller | Coordinates the servo axis with the machine sequence |
| DRIVE-CLiQ Signal Cable | Connects the motor feedback interface to compatible Siemens equipment |
| Motor Power Cable | Supplies the motor from the servo drive |
| Precision Shaft Coupling | Transfers torque from the smooth motor shaft |
| Gearbox | Adjusts output torque and speed when required |
| External Holding Brake | Provides load retention where required by the machine design |
| Motor Mounting Hardware | Secures the motor to the machine structure |
| Protective Grounding Connection | Provides electrical protection according to the machine installation |
Recommended Related Models
| Model / Product Reference | Product Type | Typical Application |
|---|---|---|
| Siemens 1FK7060-5AF71-1KG5 | SIMOTICS S Synchronous Servo Motor | Basic absolute encoder configuration with smooth shaft and no integrated holding brake |
| Siemens 1FK7060-5AF71-1KG0 | SIMOTICS S 1FK7 Compact Servo Motor | Related 63 mm frame configuration with basic absolute encoder and smooth shaft |
| Siemens 1FK7060-5AF71-1FB3 | SIMOTICS S 1FK7 Compact Servo Motor | Related motor configuration with absolute encoder, fitted-key shaft, and holding brake |
| Siemens 1FK7060-5AF71-1PA0 | SIMOTICS S 1FK7 Compact Servo Motor | Related configuration using a two-pole resolver and fitted-key shaft |
| Siemens 1FK7060-5AF71-1EH0 | SIMOTICS S 1FK7 Compact Servo Motor | Related configuration with an absolute encoder, EnDat interface, and holding brake |
| Siemens SINAMICS S120 | Servo Drive System | Servo control for compatible industrial motion applications |
Key Advantages
- Provides controlled rotary motion for automated machinery.
- Combines a permanent-magnet synchronous motor with absolute position feedback.
- Uses a DRIVE-CLiQ interface for compatible Siemens drive integration.
- Supports smooth-shaft coupling arrangements.
- Offers IP65 protection with additional IP67 protection at the drive-end flange.
- Suits servo axes that do not require an integrated holding brake.
Technical FAQs
What is the significance of the basic absolute encoder in this motor?
The basic absolute encoder supplies position information through the EnDat interface and DRIVE-CLiQ connection. This allows compatible drive equipment to obtain rotor-position data for motor control and commissioning. The feedback interface must be supported by the selected drive system.
Can the 1FK7060-5AF71-1KG5 hold a vertical load when the drive is switched off?
This motor configuration does not include an integrated holding brake. A vertical axis or gravity-loaded mechanism therefore requires a suitable external load-holding solution where movement after power removal would be hazardous or unacceptable.
What coupling arrangement is suitable for the motor’s smooth shaft?
A coupling must be selected to match the shaft geometry, transmitted torque, operating speed, and alignment conditions. The coupling manufacturer’s installation requirements should be followed to prevent excessive radial loading, vibration, or premature bearing wear.
How should the motor be diagnosed if positioning accuracy deteriorates?
Check encoder communication, drive diagnostics, mechanical coupling alignment, load inertia, and control-loop settings. Changes in positioning behavior can result from mechanical wear or feedback problems as well as motor faults, so the entire axis should be assessed before replacing the motor.