Description
📌 Product Overview
The SIEMENS 1FK7083-5AF71-1EH8 is a SIMOTICS S synchronous servo motor designed for industrial motion-control applications. This 1FK7-series motor has a nominal speed of 3000 rpm and a maximum mechanical speed of 6000 rpm. Its IP65 enclosure rating makes it suitable for machinery environments where protection against dust and water jets is required.
Available technical references identify the motor with a 291 V input rating, 6.7 A rated current, 10.4 A current value, and 9.4 Nm nominal torque. The motor is manufactured in Germany and weighs approximately 19.05–19.08 kg.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | SIEMENS |
| Model | 1FK7083-5AF71-1EH8 |
| Product Type | Synchronous Servo Motor |
| Series | SIMOTICS S / 1FK7 |
| Motor Type | 3-phase synchronous servo motor |
| Rated Input Voltage | 291 V |
| Rated Speed | 3000 rpm |
| Maximum Speed | 6000 rpm |
| Rated Torque | 9.4 Nm |
| Rated Current | 6.7 A |
| Current Value | 10.4 A |
| Protection Rating | IP65 |
| Thermal Class | 155 (Class F) |
| Encoder | AM2048S/R F49 |
| Brake | 24 VDC, 22 W |
| Standard | EN 60034 |
| Country of Origin | Germany |
| Weight | Approx. 19.05–19.08 kg |
The encoder and brake details above are reported in technical identification data for this exact motor number. Because Siemens configurations can vary by complete MLFB suffix, the physical nameplate should be checked before replacement.
🔧 Key Features
- SIEMENS SIMOTICS S synchronous servo motor
- 1FK7 motor family
- 3000 rpm nominal speed
- Up to 6000 rpm maximum speed
- 9.4 Nm nominal torque
- 6.7 A rated current
- 291 V input rating
- IP65 protection
- Class F thermal insulation
- AM2048S/R F49 encoder
- 24 VDC holding brake configuration
- 3-phase motor construction
- Made in Germany
- Approx. 19.05 kg motor weight
🏭 Typical Applications
This type of high-speed synchronous servo motor can be used in machine automation systems where accurate speed and position control are required.
Typical applications include:
- CNC and machine tools
- Packaging machinery
- Printing equipment
- Automated production machinery
- Material handling systems
- Pick-and-place equipment
- High-speed positioning mechanisms
- Industrial automation lines
- Servo-driven mechanical systems
The 6000 rpm maximum speed is particularly relevant for applications requiring high-speed servo operation, although the actual permissible operating speed depends on the drive, load, motor configuration, and operating conditions.
🔌 Encoder & Brake Configuration
The identified motor configuration uses an AM2048S/R F49 encoder. A 24 VDC brake configuration is also listed, with a 22 W brake specification in the available technical identification data.
When installing a replacement motor, do not match the motor only by frame size or rated speed. The encoder, brake, shaft arrangement, connector configuration and complete Siemens MLFB should all be compared.
🛠️ Installation & Maintenance Notes
Before installation, verify the motor nameplate against the machine documentation.
Recommended checks:
- Confirm complete MLFB: 1FK7083-5AF71-1EH8
- Check shaft and mounting dimensions
- Inspect motor connectors and cable interfaces
- Verify encoder feedback compatibility
- Confirm brake voltage and control circuit
- Check motor insulation and winding condition
- Rotate the shaft manually and check for abnormal mechanical resistance
- Verify the connected Siemens drive configuration before commissioning
For a used or surplus motor, it is also good practice to record the nameplate information and inspect the encoder and brake connections before installation.
❓ Frequently Asked Questions
Q: What is the rated speed of this motor?
A: The rated speed is 3000 rpm.
Q: What is the maximum speed?
A: The listed maximum speed is 6000 rpm.
Q: Is this a 400 V servo motor?
A: No. For the exact 1FK7083-5AF71-1EH8 configuration, available identification data lists 291 V. The 400 V figure should not be used as the rated motor voltage for this exact model.
Q: What is the nominal torque?
A: The available technical identification lists 9.4 Nm nominal torque.
Q: What protection rating does it have?
A: IP65.
Q: What encoder is installed?
A: The identified configuration uses an AM2048S/R F49 encoder.
Q: Does this motor have a brake?
A: The technical identification for this configuration lists a 24 VDC brake, 22 W. Verify the physical motor nameplate and connector arrangement before installation.
📦 Identification & Ordering Information
For purchasing or replacement, use the complete part number:
SIEMENS 1FK7083-5AF71-1EH8
Key identification data:
- Rated speed: 3000 rpm
- Maximum speed: 6000 rpm
- Rated voltage: 291 V
- Rated current: 6.7 A
- Nominal torque: 9.4 Nm
- IP rating: IP65
- Encoder: AM2048S/R F49
- Brake: 24 VDC / 22 W
- Country of origin: Germany
- Approximate weight: 19.05–19.08 kg
Important: Siemens 1FK7 motors can have closely related configurations with different encoder, brake, winding or mechanical options. A similar-looking 1FK7 motor should not be considered a direct substitute without checking the complete MLFB.
🔗 Related SIEMENS 1FK7 Models
Related 1FK7 configurations commonly encountered in industrial servo systems include:
- 1FK7083 series
- 1FK7083-5AF71 series
- 1FK7 SIMOTICS S servo motors
- 1FK7 motors with 3000 rpm rated speed
- 1FK7 motors with 6000 rpm maximum speed
- 1FK7 motors with multi-turn encoder configurations
- 1FK7 motors with holding-brake options
- SIMOTICS S-1FK7 servo motors
These are related motor configurations, not confirmed direct replacements. Exact replacement selection should be based on the complete Siemens MLFB and the existing drive/machine configuration.
