Siemens 1FK7042-2AF71-1RG0 Servo Motor
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Technical Specifications
| Parameter | Description |
|---|---|
| Brand | Siemens |
| Product Series | SIMOTICS S-1FK7 |
| Model | 1FK7042-2AF71-1RG0 |
| Product Type | Permanent-Magnet Synchronous Servo Motor |
| Motor Design | Compact 1FK7-CT Synchronous Motor |
| Rated Power | Approx. 0.82 kW |
| DC-Link Voltage | 600 V DC |
| Rated Speed | 3000 rpm |
| Maximum Mechanical Speed | 9000 rpm |
| Maximum Speed with Drive Limitation | 6400 rpm |
| Rated Torque (100 K) | 2.6 Nm |
| Static Torque (60 K) | 2.5 Nm |
| Static Torque (100 K) | 3.0 Nm |
| Maximum Torque | 10.5 Nm |
| Rated Current | 2.0 A |
| Maximum Current | 7.6 A |
| Stall Current (60 K) | 1.8 A |
| Stall Current (100 K) | 2.2 A |
| Number of Poles | 8 |
| Torque Constant | 1.38 Nm/A |
| Voltage Constant (20°C) | 90 V/1000 rpm |
| Winding Resistance (20°C) | 4.67 Ω |
| Rotating-Field Inductance | 35 mH |
| Electrical Time Constant | 7.5 ms |
| Mechanical Time Constant | 2.15 ms |
| Thermal Time Constant | 30 min |
| Rotor Inertia | 0.29 × 10⁻³ kg·m² |
| Efficiency | Approx. 89% |
| Cooling Method | Natural Cooling |
| Mounting Type | IM B5 (IM V1, IM V3) |
| Flange Type | Flange 1 |
| Protection Rating | IP64 |
| Encoder Type | AM20DQI Absolute Encoder |
| Encoder Resolution | 20-bit single-turn + 12-bit multi-turn |
| Encoder Interface | DRIVE-CLiQ |
| Shaft Design | Plain Shaft, Tolerance N |
| Holding Brake | Without Integrated Holding Brake |
| Temperature Monitoring | Pt1000 Temperature Sensor |
| Electrical Connection | Power and signal connectors with rotatable mounting |
| Vibration Grade | Grade A |
| Shaft Height | 48 mm |
| Weight | 4.601 kg |
FAQ
Q1: What type of servo motor is the Siemens 1FK7042-2AF71-1RG0?
The Siemens 1FK7042-2AF71-1RG0 is a permanent-magnet synchronous servo motor from the SIMOTICS S-1FK7 series. It features a compact design and is intended for industrial motion-control applications requiring accurate positioning, stable speed regulation, and responsive dynamic performance. Typical applications include CNC machinery, automated production lines, packaging equipment, and precision positioning systems.
Q2: What are the rated power, speed, and torque of this servo motor?
The motor has an approximate rated power of 0.82 kW and a rated speed of 3000 rpm. Its rated torque is 2.6 Nm, while the static torque is 3.0 Nm at a 100 K temperature rise. The maximum torque is 10.5 Nm. Actual operating performance depends on the selected drive, load inertia, cooling conditions, and duty cycle.
Q3: Which encoder is installed in the 1FK7042-2AF71-1RG0?
This model uses an AM20DQI absolute encoder with 20-bit single-turn resolution and 12-bit multi-turn information. It communicates through the DRIVE-CLiQ interface with compatible Siemens drive systems. The encoder provides rotor position feedback for accurate positioning and speed control. Correct connection and parameter configuration are essential for reliable operation.
Q4: Does this servo motor include an integrated holding brake?
No. The 1FK7042-2AF71-1RG0 is a version without an integrated holding brake. When the motor stops, it cannot mechanically lock the shaft through an internal brake. Applications involving vertical loads or requiring position retention after power loss may need an external braking or mechanical holding device.
Q5: Which Siemens drive systems are compatible with this motor?
The motor is designed for use with compatible Siemens SINAMICS drive systems. When selecting a drive, verify the rated current, torque requirements, DC-link voltage, maximum operating speed, and DRIVE-CLiQ encoder interface. The final drive selection should be based on the motor data and the machine’s operating requirements.
Q6: How should overcurrent or overload alarms be diagnosed?
Start by checking the drive fault code and identifying whether the alarm occurs during startup, acceleration, or continuous operation. Inspect the mechanical load for jamming, excessive friction, or abnormal resistance. Check the motor power cable, connectors, and grounding. Also verify the motor data, current limits, and acceleration and deceleration settings in the drive. Excessive load inertia can also cause overcurrent or overload conditions during acceleration.
Q7: What should be checked if the motor has an encoder feedback fault?
Check that the DRIVE-CLiQ connector is securely fitted and inspect the feedback cable for damage, loose contacts, or incorrect shielding and grounding. Use the SINAMICS diagnostic functions to check encoder identification, actual position values, and communication status. If position feedback is missing or unstable, investigate the encoder, connection cable, and drive configuration before restarting the machine.
Q8: What precautions should be taken when replacing the Siemens 1FK7042-2AF71-1RG0?
Before replacement, verify the complete order number and confirm that the encoder type, DRIVE-CLiQ interface, plain shaft design, mounting arrangement, and brake configuration match the original motor. This model has no integrated holding brake, so replacing it with a brake-equipped version may require additional system checks. Disconnect the power supply and follow the applicable electrical safety procedures. After installation, verify the motor connections, encoder recognition, and drive parameters. Perform a low-speed test to confirm the rotation direction and feedback signals before returning the machine to normal operation.
Siemens 1FK7042-2AF71-1RG0 Servo Motor is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
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The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
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We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.
