Siemens 1FK7042-2AF71-1RG1 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 | 1FK7042-2AF71-1RG1 |
| Product Type | Permanent-Magnet Synchronous Servo Motor |
| Motor Design | 1FK7-CT Compact Synchronous Motor |
| Optimum Power | 0.82 kW |
| DC-Link Voltage | 600 V DC |
| Rated Speed | 3000 rpm |
| Maximum Mechanical Speed | 9000 rpm |
| Maximum Inverter Speed | 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 | 1.375 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 | IP65 |
| 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 Sensor | Pt1000 |
| Electrical Connection | Rotatable Power and Signal Connectors |
| Vibration Grade | Grade A |
| Shaft Height | 48 mm |
| Weight | 4.601 kg |
FAQ
Q1: What type of servo motor is the Siemens 1FK7042-2AF71-1RG1?
The Siemens 1FK7042-2AF71-1RG1 is a permanent-magnet synchronous servo motor from the SIMOTICS S-1FK7 series. It is designed for industrial motion-control applications that require accurate positioning, stable speed regulation, and fast dynamic response. Typical applications include CNC machinery, automated production lines, packaging equipment, and precision positioning systems.
Q2: What are the rated speed and torque of this servo motor?
The motor has a rated speed of 3000 rpm and a rated torque of 2.6 Nm at a 100 K temperature rise. Its static torque is 2.5 Nm at 60 K and 3.0 Nm at 100 K. The maximum torque is 10.5 Nm. Actual operating performance depends on the drive configuration, load inertia, cooling conditions, and duty cycle.
Q3: Which encoder is used in the 1FK7042-2AF71-1RG1?
This model is equipped with an AM20DQI absolute encoder, providing 20-bit single-turn resolution and 12-bit multi-turn information. The encoder uses the DRIVE-CLiQ interface to communicate with compatible Siemens drive systems. It provides rotor position feedback for accurate positioning and closed-loop speed control.
Q4: Does the 1FK7042-2AF71-1RG1 have an integrated holding brake?
No. This model is supplied without an integrated holding brake. If the machine needs to hold a load when the motor stops or loses power, an external braking device or mechanical holding system may be required. This is particularly important for vertical-axis applications where the load could move under gravity.
Q5: Which Siemens drive systems can be used with this servo motor?
The 1FK7042-2AF71-1RG1 is designed for compatible Siemens SINAMICS drive systems. A suitable motor module must support the motor’s electrical ratings, encoder interface, operating speed, and torque requirements. The recommended motor module family includes the 6SL312 series with the appropriate current rating. Compatibility should be confirmed against the specific drive configuration before installation.
Q6: What should be checked if the motor experiences overcurrent or overload faults?
First, check the drive fault code and identify when the fault occurs. Inspect the mechanical load for jamming, excessive friction, or abnormal resistance. Check the motor power cable, connectors, grounding, and drive current settings. Also review acceleration and deceleration times and verify that the load inertia is within the drive system’s operating limits. Incorrect motor parameter settings can also cause current-related faults.
Q7: How can encoder feedback problems be diagnosed?
Check that the DRIVE-CLiQ connector is securely connected and inspect the feedback cable for damage, loose contacts, or grounding problems. Use the SINAMICS diagnostic functions to check encoder identification, communication status, and actual position values. If the feedback signal is missing or unstable, inspect the encoder, cable, connectors, and drive configuration before restarting the machine.
Q8: What precautions should be taken when replacing the Siemens 1FK7042-2AF71-1RG1?
Before replacement, verify the complete model 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 a brake-equipped version should not be treated as a direct equivalent without checking the machine requirements. 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 1FK7042-2AF71-1RG1 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.
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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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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.
