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- Siemens
- 1FK7063-2AF71-1RG1
- Synchronous Motor
- Germany
- 63 mm
- 11.101 kg
- Xiamen, China
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Product Overview
The Siemens 1FK7063-2AF71-1RG1 is a SIMOTICS S-1FK7 compact permanent-magnet synchronous motor for servo applications that require controlled positioning, repeatable motion, and a useful combination of speed and torque. With a rated output power of 2.3 kW and a rated speed of 3,000 rpm, it is suited to machine axes that need coordinated acceleration and deceleration rather than simple fixed-speed rotation.
In an automated assembly line, this motor can drive a positioning axis that moves workpieces between processing stations. A compatible SINAMICS drive regulates the motor current and speed, while the integrated absolute encoder supplies position feedback through DRIVE-CLiQ. This arrangement allows the motion controller to coordinate the axis with sensors, tooling, and other machine movements.
The 1RG1 configuration is particularly relevant when specifying a replacement motor. It uses an AM20DQI absolute encoder with 20-bit single-turn and 12-bit multiturn resolution, a smooth shaft, and no holding brake. The absence of a brake matters when the driven mechanism must remain stationary after the motor stops: the mechanical system must provide an appropriate holding arrangement if gravity or external forces could move the axis.
Natural cooling and the IP65 motor enclosure make this model suitable for appropriately configured industrial machinery. The final installation must still account for ambient temperature, mounting orientation, shaft loading, drive compatibility, and the actual duty cycle.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 1FK7063-2AF71-1RG1 |
| Product Family | SIMOTICS S-1FK7 |
| Product Type | Compact Synchronous Servo Motor |
| Motor Technology | Permanent-Magnet Synchronous Motor |
| Rated Power | 2.3 kW |
| Rated Speed | 3,000 rpm |
| Rated Torque at 100 K | 7.3 Nm |
| Rated Current | 5.6 A |
| Static Torque at 60 K | 9.1 Nm |
| Static Torque at 100 K | 11 Nm |
| Stall Current at 60 K | 6.5 A |
| Stall Current at 100 K | 8.0 A |
| Number of Poles | 8 |
| Maximum Mechanical Speed | 7,200 rpm |
| Maximum Torque | 35 Nm |
| Maximum Current | 28 A |
| Torque Constant | 1.37 Nm/A |
| Voltage Constant at 20°C | 90.5 V/1,000 rpm |
| Winding Resistance at 20°C | 0.64 Ω |
| Rotating Field Inductance | 8.5 mH |
| Electrical Time Constant | 13.4 ms |
| Mechanical Time Constant | 1.48 ms |
| Thermal Time Constant | 40 min |
| Cooling | Natural cooling |
| Degree of Protection | IP65 |
| Mounting Design | IM B5 (IM V1, IM V3) |
| Shaft Configuration | Smooth shaft, tolerance N |
| Holding Brake | Without holding brake |
| Encoder System | AM20DQI absolute encoder, 20-bit single-turn + 12-bit multiturn |
| Encoder Interface | DRIVE-CLiQ |
| Temperature Monitoring | Pt1000 temperature sensor |
| Electrical Connections | Rotatable power and signal connectors |
| Shaft Height | 63 mm |
| Weight | 11.101 kg |
Product Features
- 2.3 kW rated output: Suits servo axes requiring controlled rotary motion at the specified operating point.
- 3,000 rpm rated speed: Supports positioning and cyclic movement in industrial machinery.
- Permanent-magnet rotor: Enables synchronous operation under the control of a compatible servo drive.
- AM20DQI absolute encoder: Supplies single-turn and multiturn position feedback through DRIVE-CLiQ.
- Smooth shaft configuration: Allows coupling selection according to the driven mechanism and transmission design.
- No integrated holding brake: Suits applications where a brake is unnecessary or holding is handled by a separate mechanical arrangement.
- Natural cooling: Uses the motor’s specified self-cooling arrangement without a separate forced-air cooling unit.
- IP65 enclosure: Provides protection against dust ingress and water jets under the defined test conditions.
- Pt1000 temperature monitoring: Supports motor temperature supervision through compatible drive equipment.
- Rotatable connectors: Allow the power and signal connection orientation to be arranged to suit the installation.
Working Principle
The 1FK7063-2AF71-1RG1 uses a permanent-magnet rotor and a three-phase stator winding to generate rotary motion. A compatible SINAMICS servo drive controls the stator currents, creating the rotating magnetic field required to accelerate, decelerate, and regulate the motor.
A typical servo-axis arrangement follows this path:
PLC / Motion Controller → SINAMICS Drive → 1FK7063-2AF71-1RG1 → Mechanical Load
Position Feedback: AM20DQI Encoder → DRIVE-CLiQ → Servo Drive
When the controller requests a position or speed change, the drive adjusts the motor current to produce the required torque. The encoder returns absolute position information, allowing the control system to compare actual motion with the commanded trajectory. The drive then corrects deviations according to its configured control loops.
Consider a conveyor indexing system that must stop a component at a repeatable processing position. The controller commands the axis to accelerate, move through the required distance, and decelerate before the next operation begins. The motor’s rated speed and torque define part of the operating envelope, but the final motion profile must also account for load inertia, friction, coupling stiffness, and the required cycle time.
The AM20DQI encoder supplies both single-turn and multiturn information. This is useful where the control system needs an absolute position reference, although startup behavior and position handling still depend on the configured drive and controller.
Because this version has no holding brake, the motor should not be assumed to hold a vertical or externally loaded axis in place after torque is removed. Where the load can move under gravity or external force, a suitable external brake or mechanical holding device must be assessed as part of the machine design.
Role in a SINAMICS Servo Control Architecture
The 1FK7063-2AF71-1RG1 operates as the electromechanical component of a closed-loop servo axis. The controller coordinates the motion sequence, the SINAMICS drive regulates motor torque and speed, and the encoder provides feedback for position control.
Motion Controller → SINAMICS Drive → Servo Motor → Mechanical Transmission
Encoder Feedback → DRIVE-CLiQ → Servo Drive → Motion Control
| System Element | Function |
|---|---|
| PLC or Motion Controller | Generates motion commands and coordinates machine operations |
| SINAMICS S120 Drive System | Provides controlled power and closed-loop motor regulation in a compatible configuration |
| 1FK7063-2AF71-1RG1 | Converts electrical power into controlled rotary motion |
| AM20DQI Encoder | Supplies absolute single-turn and multiturn position information |
| DRIVE-CLiQ Connection | Carries compatible encoder and drive communication data |
| Motor Power Cable | Connects the drive power stage to the motor |
| Mechanical Coupling | Transfers torque to the driven shaft or transmission |
| Gearbox, Where Required | Adapts speed and torque to the application |
| External Holding Device, Where Required | Prevents unintended movement when motor torque is unavailable |
| PLC Interlocks and Sensors | Coordinate axis movement with machine conditions |
The drive must support the motor’s electrical ratings and DRIVE-CLiQ feedback configuration. Correct motor identification, encoder assignment, current limits, and control-loop settings are necessary before the axis is placed into service.
Industrial Applications
| Application | Typical Use |
|---|---|
| Automated Assembly | Positioning parts during fastening, insertion, and inspection |
| Packaging Machinery | Driving indexing mechanisms and synchronized machine axes |
| Material Handling | Controlling servo-driven transfer and positioning equipment |
| Pick-and-Place Systems | Moving components between programmed positions |
| Labeling Equipment | Coordinating motion with product transport |
| Inspection Machines | Positioning fixtures, cameras, and measuring mechanisms |
| Printing Machinery | Controlling selected feed or positioning axes |
| Electronics Manufacturing | Operating precision handling and assembly mechanisms |
| Machine Tools | Driving auxiliary or positioning axes within the motor’s operating limits |
| General Industrial Automation | Providing closed-loop rotary motion for programmable machinery |
This motor is most suitable where a servo drive can use encoder feedback to control motion precisely. Applications with high inertia, frequent reversals, sustained torque demand, or vertical loads require a duty-cycle and mechanical assessment rather than selection by rated power alone.
Installation and Maintenance
- Verify the complete order number: Confirm 1FK7063-2AF71-1RG1, including the encoder and no-brake configuration, before installation or replacement.
- Check drive compatibility: Ensure the selected SINAMICS drive supports the motor’s ratings and the AM20DQI DRIVE-CLiQ feedback system.
- Inspect the mounting flange: Check the mounting face, alignment, fasteners, and mechanical support before securing the motor.
- Review the shaft coupling: Select a compatible coupling for the smooth shaft and verify alignment to avoid excessive radial or axial loading.
- Connect the motor power cable: Follow the applicable connection diagram and verify protective-earth continuity.
- Check the DRIVE-CLiQ connection: Inspect the feedback cable, connectors, routing, and drive-side encoder assignment.
- Assess holding requirements: Since the motor has no integrated holding brake, confirm that any gravity-loaded or externally driven axis has an appropriate holding arrangement.
- Verify mechanical loading: Check load inertia, friction, transmission ratios, and expected peak torque before commissioning.
- Configure motor data: Confirm the motor identification, feedback parameters, current limits, and operating settings in the drive.
- Test motion at reduced demand: Begin commissioning with conservative speed and acceleration settings, then increase them after confirming correct feedback and direction.
- Monitor temperature and vibration: Investigate abnormal heating, noise, vibration, encoder faults, or position deviation instead of compensating with unverified parameter changes.
- Record commissioning results: Document the drive assignment, encoder configuration, operating limits, mechanical coupling, and any external holding device.
Before maintenance, isolate the drive and follow the site’s electrical safety procedures. A rotating permanent-magnet motor can generate voltage when externally driven, so the shaft must be secured and the relevant electrical hazards assessed before disconnecting the motor.
Compatible System Components
The motor must be matched with a compatible drive, feedback connection, mechanical transmission, and any required external holding equipment. The final combination depends on the axis duty, motion profile, and machine safety requirements.
| Component | Function |
|---|---|
| SINAMICS S120 Drive System | Provides closed-loop servo control in a compatible configuration |
| SINAMICS S120 Motor Module | Supplies controlled motor power |
| SINAMICS Control Unit | Coordinates drive operation and motion control |
| DRIVE-CLiQ Signal Cable | Connects the encoder feedback interface to compatible drive equipment |
| Motor Power Cable | Carries the drive’s power output to the motor |
| PLC or Motion Controller | Generates position, speed, and sequencing commands |
| Mechanical Coupling | Transfers motor torque to the driven mechanism |
| Gearbox, Where Required | Adapts motor speed and torque to the load |
| External Holding Brake, Where Required | Provides a means of securing the axis when motor torque is removed |
| Machine Sensors and Interlocks | Coordinate motion with the machine’s operating state |
Recommended Related Models
| Model | Product Type | Typical Application |
|---|---|---|
| Siemens 1FK7063-2AF71-1RG0 | SIMOTICS S-1FK7 Synchronous Motor | Related motor configuration with a different encoder interface |
| Siemens 1FK7063-2AF71-1RG2 | SIMOTICS S-1FK7 Synchronous Motor | Related DRIVE-CLiQ motor variant with a different shaft-end specification |
| Siemens 1FK7063-2AF71-1RH1 | SIMOTICS S-1FK7 Synchronous Motor | Related configuration with an integrated holding brake |
| Siemens 1FK7063-2AF71-1RH2 | SIMOTICS S-1FK7 Synchronous Motor | Related motor variant with a holding brake and different configuration details |
| Siemens 1FK7063-2AH71-1RG1 | SIMOTICS S-1FK7 Synchronous Motor | Related motor variant with a different rated speed and power rating |
| Siemens 1FK7063-2AF71-1RG0-Z | SIMOTICS S-1FK7 Synchronous Motor | Configured variant for applications requiring additional specified options |
Key Advantages
- 2.3 kW rated output for industrial servo applications.
- 3,000 rpm rated speed and 7.3 Nm rated torque at the specified thermal condition.
- AM20DQI absolute encoder with single-turn and multiturn feedback.
- DRIVE-CLiQ interface for compatible SINAMICS integration.
- Natural cooling and IP65 protection.
- Smooth shaft for suitable coupling arrangements.
- No integrated holding brake, allowing selection of a separate holding solution where required.
Technical FAQs
What is the difference between 1FK7063-2AF71-1RG1 and a motor variant with an RH suffix?
The 1RG1 configuration is specified without a holding brake, while the related 1RH1 variant includes a holding brake. This difference affects the control wiring, mechanical holding strategy, and drive configuration. The complete motor reference should be checked before selecting a replacement.
Does the 1FK7063-2AF71-1RG1 use DRIVE-CLiQ feedback?
Yes. This version uses an AM20DQI absolute encoder with a DRIVE-CLiQ interface, providing 20-bit single-turn and 12-bit multiturn position information. The drive and feedback connection must support the specified encoder configuration.
Can this motor hold a vertical axis when the drive is disabled?
The motor has no integrated holding brake. If the vertical axis can move under gravity when motor torque is removed, an appropriate external holding brake or mechanical restraint must be evaluated. The motor’s servo torque should not be treated as a substitute for a dedicated holding arrangement when the drive is disabled.
What should be checked if the axis has position errors despite normal motor rotation?
Check the encoder feedback, DRIVE-CLiQ connection, mechanical coupling, load inertia, and drive tuning. Also inspect the transmission for backlash or looseness and verify that the commanded acceleration and torque remain within the application’s operating limits.