Siemens 1FK7042-2AF71-1RB1 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 | 1FK7042-2AF71-1RB1 |
| Product Type | Permanent-Magnet Synchronous Servo Motor |
| Motor Design | Compact 1FK7-CT synchronous motor |
| Rated 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 | 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 |
| 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 |
| Inductance | 35 mH |
| Rotor Inertia | 0.32 × 10⁻³ kg·m² |
| Efficiency | 89% |
| Cooling Method | Natural cooling |
| Mounting Type | IM B5 (IM V1, IM V3) |
| Flange | 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 | Feather key, tolerance N |
| Holding Brake | Integrated permanent-magnet holding brake |
| Holding Torque | 4.0 Nm |
| Brake Supply Voltage | 24 V DC ±10% |
| Brake Coil Current | 0.5 A |
| Brake Opening Time | 70 ms |
| Brake Closing Time | 30 ms |
| Maximum Braking Work | 150 J |
| Temperature Monitoring | Pt1000 temperature sensor |
| Electrical Connection | Rotatable power connector and signal connector |
| Recommended Motor Module | SINAMICS 6SL312-1TE13-0AA series, subject to drive configuration |
| Shaft Height | 48 mm |
| Weight | 4.9 kg |
FAQ
Q1: What type of motor is the Siemens 1FK7042-2AF71-1RB1?
The Siemens 1FK7042-2AF71-1RB1 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 high dynamic response. Its integrated holding brake makes it suitable for applications where the motor shaft must remain secured when the drive is stopped.
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. Its static torque is 2.5 Nm at a 60 K temperature rise and 3.0 Nm at a 100 K temperature rise. The maximum torque is 10.5 Nm. Actual operating performance depends on the selected SINAMICS drive, load inertia, cooling conditions, and duty cycle.
Q3: What is the function of the integrated holding brake?
The 1FK7042-2AF71-1RB1 is equipped with a permanent-magnet holding brake rated at 4.0 Nm. The brake is designed to hold the motor shaft when the motor is stopped. It uses a 24 V DC supply with a coil current of 0.5 A. The brake is intended for holding applications rather than routine dynamic stopping, so the machine’s stopping and safety functions should be handled by the appropriate drive and braking system.
Q4: Which encoder is installed in the 1FK7042-2AF71-1RB1?
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, providing position feedback to the compatible drive system. Correct encoder recognition and parameter configuration are essential for accurate positioning and stable servo operation.
Q5: Which Siemens drive systems are compatible with this servo motor?
The motor is designed for use with compatible Siemens SINAMICS drive systems. A suitable motor module must support the motor’s electrical ratings, encoder interface, brake control, and required operating range. The recommended motor module specification should be checked against the actual drive configuration before installation or replacement.
Q6: How should the holding brake be connected and controlled?
The integrated brake requires a 24 V DC supply within the specified tolerance of ±10%. Its coil current is approximately 0.5 A, with an opening time of 70 ms and a closing time of 30 ms. Brake wiring and control should follow the Siemens connection instructions and the selected drive’s brake-control requirements. Incorrect wiring or timing can cause brake faults or unwanted mechanical movement.
Q7: What should be checked if the motor triggers an overcurrent or overload alarm?
Check the drive fault code first, then inspect the mechanical load for jamming, excessive friction, or abnormal resistance. Verify the motor power connections, cable condition, grounding, and drive current settings. Also check whether the acceleration and deceleration times are appropriate for the load inertia. If the brake does not release correctly, inspect its 24 V DC supply and control circuit, as a partially engaged brake can increase motor load and cause an overload.
Q8: What precautions should be taken when replacing the 1FK7042-2AF71-1RB1?
Confirm the complete order number before replacement. In particular, check that the replacement has the same encoder type, DRIVE-CLiQ interface, feather-key shaft, holding-brake configuration, and protection rating. Isolate the power supply and follow the required electrical safety procedures before removing the motor. After installation, verify the motor and encoder identification, brake operation, drive parameters, and rotation direction. Perform a controlled low-speed test before returning the machine to normal production.
Siemens 1FK7042-2AF71-1RB1 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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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.
