Siemens 1FK7042-2AF71-1CH1 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 |
|---|---|
| Product Model | 1FK7042-2AF71-1CH1 |
| Manufacturer | Siemens |
| Product Series | SIMOTICS S-1FK7 |
| Product Type | Three-Phase Synchronous Servo Motor |
| Motor Type | Permanent-Magnet Synchronous Motor |
| Rated Power | 0.82 kW |
| DC-Link Voltage | 600 V DC |
| Rated Speed | 3,000 rpm |
| Maximum Mechanical Speed | 9,000 rpm |
| Maximum Drive Operating Speed | 6,400 rpm |
| Rated Torque | 2.6 Nm |
| Static Torque at 60 K Temperature Rise | 2.50 Nm |
| Static Torque at 100 K Temperature Rise | 3.00 Nm |
| Maximum Torque | 10.5 Nm |
| Rated Current | 2.0 A |
| Maximum Current | 7.6 A |
| Number of Poles | 8 |
| Torque Constant | 1.38 Nm/A |
| Voltage Constant | 90.0 V/1000 rpm |
| Winding Resistance at 20°C | 4.67 Ω |
| Inductance | 35.0 mH |
| Cooling Method | Natural Cooling |
| Encoder Type | AM24DQI Absolute Encoder |
| Encoder Resolution | 24-bit Single-turn + 12-bit Multiturn |
| Encoder Interface | DRIVE-CLiQ |
| Temperature Sensor | Pt1000 |
| Holding Brake | Permanent-Magnet Holding Brake |
| Holding Torque | 4.0 Nm |
| Brake Supply Voltage | 24 V DC ±10% |
| Brake Coil Current | 0.5 A |
| Brake Release Time | 70 ms |
| Brake Closing Time | 30 ms |
| Shaft Type | Plain Shaft |
| Mounting Type | IM B5 (IM V1, IM V3) |
| Flange Size | Size 1 |
| Shaft Height | 48 mm |
| Protection Rating | IP65 |
| Power Connection | Rotatable Power Connector |
| Signal Connection | Rotatable Signal Connector |
| Vibration Severity Grade | Grade A |
| Weight | 4.9 kg |
FAQ
Q1: What is the Siemens 1FK7042-2AF71-1CH1 servo motor used for?
The Siemens 1FK7042-2AF71-1CH1 belongs to the SIMOTICS S-1FK7 series and uses permanent-magnet synchronous motor technology. It is designed for industrial applications requiring precise positioning, speed regulation, and fast dynamic response. Typical applications include CNC machines, packaging equipment, automated assembly lines, material handling systems, and precision processing machinery.
Q2: What are the rated power, speed, and torque of this servo motor?
The motor has a rated power of 0.82 kW, a rated speed of 3,000 rpm, and a rated torque of 2.6 Nm. Its static torque is 2.50 Nm at a 60 K temperature rise and 3.00 Nm at a 100 K temperature rise. The maximum torque is 10.5 Nm. When selecting a suitable drive, engineers should consider load inertia, acceleration and deceleration times, and the machine’s duty cycle.
Q3: Does the 1FK7042-2AF71-1CH1 come with a holding brake?
Yes. This model is equipped with a permanent-magnet holding brake rated at 4.0 Nm. The brake operates with a 24 V DC supply and provides mechanical holding when power is removed. It is suitable for applications where the motor shaft must remain stationary. However, the holding brake is primarily intended for static holding and should not replace the drive system’s dynamic braking function or be treated as a safety brake without proper evaluation.
Q4: What type of encoder does the 1FK7042-2AF71-1CH1 use?
This motor uses an AM24DQI absolute encoder with 24-bit single-turn and 12-bit multiturn resolution. It communicates with compatible Siemens drive systems through the DRIVE-CLiQ interface. The absolute feedback system provides position information to the controller, supporting accurate positioning, speed regulation, and coordinated multi-axis motion.
Q5: Can this servo motor work with Siemens SINAMICS drives?
Yes. The motor is designed for use with compatible Siemens SINAMICS servo drive configurations. Before installation, verify the drive module’s current capacity, DC-link voltage, motor ratings, and DRIVE-CLiQ feedback compatibility. During commissioning, configure the correct motor ordering data and encoder parameters to prevent drive alarms or position feedback errors.
Q6: What are the cooling method and protection rating of this motor?
The 1FK7042-2AF71-1CH1 uses natural cooling and has an IP65 protection rating. It is suitable for industrial environments where protection against dust and water jets is required. Adequate space should be maintained around the motor for heat dissipation. For applications involving frequent starts and stops or continuous high loads, monitor the motor temperature during operation.
Q7: How should overheating, brake faults, or drive alarms be diagnosed?
Start by checking the mechanical load, transmission system, and coupling for overload, binding, or excessive friction. For overheating, inspect the motor current, acceleration settings, and Pt1000 temperature sensor connections. If the brake does not operate correctly, check the 24 V DC supply, coil wiring, and brake release status. Also examine DRIVE-CLiQ communication and the drive’s fault codes to identify the source of the problem before restarting the equipment.
Q8: What should be checked when installing or replacing the 1FK7042-2AF71-1CH1?
Disconnect the power supply and follow the machine’s electrical safety procedures before installation. Check the mounting flange, shaft connection, and coupling alignment to prevent excessive radial or axial loads. Keep the power, encoder feedback, and brake supply connections correctly identified and securely fitted. After installation, verify the motor identification data, encoder communication, and brake control status in the drive system. Begin with a low-speed test and gradually increase the operating speed and load after confirming normal operation.
Siemens 1FK7042-2AF71-1CH1 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.








