Siemens 1FK7103-5AF71-1AH0 Servo Motor
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| Mobile | +8613666084105 | |||||||
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| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Series | SIMOTICS S-1FK7 |
| Product Type | Compact Synchronous Servo Motor |
| Model / Order Number | 1FK7103-5AF71-1AH0 |
| Rated Power | 4.40 kW |
| Rated Speed | 3,000 rpm |
| Rated Torque | 14 Nm |
| Static Torque (60 K) | 30 Nm |
| Static Torque (100 K) | 36 Nm |
| Rated Current | 12 A |
| Number of Poles | 8 |
| Number of Pole Pairs | 4 |
| Optimum Operating Speed | 2,500 rpm |
| Optimum Operating Power | 5.37 kW |
| Maximum Permissible Mechanical Speed | 5,000 rpm |
| Maximum Permissible Inverter Speed | 5,000 rpm |
| Maximum Torque | 108 Nm |
| Maximum Current | 84 A |
| Cooling Method | Natural Cooling |
| Mounting Type | IM B5 (IM V1, IM V3) |
| Flange | Flange 1 |
| Encoder Type | Incremental Encoder |
| Encoder Signal | SIN/COS 1 Vpp |
| Encoder Resolution | 2,048 pulses/revolution |
| DRIVE-CLiQ Interface | Without DRIVE-CLiQ |
| Shaft Design | Plain Shaft, Tolerance N |
| Holding Brake | With Holding Brake |
| Degree of Protection | IP64 |
| Temperature Monitoring | KTY84 Stator Winding Temperature Sensor |
| Electrical Connection | Power and Signal Connectors |
| Connector Orientation | 270° Rotatable |
| Torque Constant | 1.35 Nm/A |
| Voltage Constant at 20°C | 86 V/1000 rpm |
| Winding Resistance at 20°C | 0.09 Ω |
| Rotating Field Inductance | 2.0 mH |
| Electrical Time Constant | 22.2 ms |
| Mechanical Time Constant | 1.55 ms |
| Thermal Time Constant | 65 min |
| Shaft Torsional Stiffness | 149,000 Nm/rad |
| Rotor Moment of Inertia | 118 kg·cm² with Holding Brake |
| Shaft Height | 100 mm |
| Weight | 32.002 kg |
FAQ
1. What type of servo motor is the Siemens 1FK7103-5AF71-1AH0?
The Siemens 1FK7103-5AF71-1AH0 is a SIMOTICS S-1FK7 compact permanent-magnet synchronous servo motor designed for industrial motion-control applications. It uses natural cooling and is suitable for automation equipment, machine tools, production machinery, and precision positioning systems. With a rated power of 4.40 kW, rated speed of 3,000 rpm, and rated torque of 14 Nm, it is designed for applications requiring controlled speed, accurate positioning, and reliable dynamic response.
2. What are the rated speed and rated torque of the 1FK7103-5AF71-1AH0?
The motor has a rated speed of 3,000 rpm and a rated torque of 14 Nm. The static torque is 30 Nm at a 60 K temperature rise and 36 Nm at a 100 K temperature rise. The specified maximum torque is 108 Nm. When selecting operating conditions, the continuous load, peak load, duty cycle, ambient temperature, and servo drive settings should all be considered to ensure that the motor operates within its thermal and electrical limits.
3. What type of encoder is used on the 1FK7103-5AF71-1AH0?
This model uses an incremental encoder with SIN/COS 1 Vpp output and a resolution of 2,048 pulses per revolution. The encoder provides speed and position feedback to the servo drive for closed-loop control. This version does not use a DRIVE-CLiQ encoder interface. During installation and commissioning, the encoder cable, signal connections, shielding, grounding, and feedback parameters should be checked carefully to prevent position feedback errors or unstable servo operation.
4. Does the Siemens 1FK7103-5AF71-1AH0 have a holding brake?
Yes. The 1FK7103-5AF71-1AH0 is equipped with a holding brake. The brake is intended to hold the motor shaft when the motor is stationary and is particularly useful in applications where the load must remain mechanically secured after the servo motor stops. The brake should be controlled according to the machine sequence and should not normally be used as the primary method for dynamic electrical deceleration. The brake release and engagement signals should also be verified during commissioning.
5. What is the maximum permissible speed of the 1FK7103-5AF71-1AH0?
The maximum permissible mechanical speed is 5,000 rpm, while the specified maximum inverter speed is also 5,000 rpm. The actual operating speed must remain within the limits of the motor, servo drive, and mechanical system. When configuring the drive, the maximum speed should be selected according to the load inertia, acceleration and deceleration requirements, coupling characteristics, and machine design. Operating beyond the permitted speed range can place excessive mechanical stress on the rotor, shaft, bearings, and connected equipment.
6. What cooling method does the 1FK7103-5AF71-1AH0 use?
The motor uses natural cooling and does not require a separate forced-air cooling system under normal operating conditions. Adequate space should be provided around the motor to allow heat to dissipate effectively. High ambient temperature, restricted airflow, or continuous high-load operation can increase motor temperature. The integrated KTY84 stator winding temperature sensor can be used for temperature monitoring and protective functions in the servo drive system.
7. Which mounting positions are supported by this servo motor?
The 1FK7103-5AF71-1AH0 supports IM B5 mounting and can also be installed in IM V1 and IM V3 positions. During installation, the flange connection, mounting hardware, shaft coupling, alignment, and permissible mechanical loads should be checked. Proper shaft alignment is particularly important in servo applications because excessive radial or axial loads can increase bearing stress, cause vibration, reduce positioning accuracy, and shorten the service life of the motor and connected mechanical components.
8. What should be checked when commissioning the Siemens 1FK7103-5AF71-1AH0?
Before commissioning, verify that the motor order number and configured motor data in the servo drive are correct. Check the power connections, protective grounding, SIN/COS encoder feedback wiring, KTY84 temperature sensor connection, and holding-brake circuit. After completing the electrical checks, perform an initial low-speed test to verify encoder feedback, rotation direction, brake release, and motor response. If an encoder fault, abnormal vibration, incorrect rotation direction, unexpected brake behavior, or rapid temperature increase occurs, stop the system and inspect the feedback wiring, motor parameters, mechanical coupling, brake circuit, and drive configuration before returning the motor to normal operation.
Siemens 1FK7103-5AF71-1AH0 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
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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.
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