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Siemens 1FK7101-5AF71-1KH5 | Siemens Siemens 1FK7 Series Synchronous Servo Motor

The 1FK7101-5AF71-1KH5 is a high-dynamic synchronous servo motor from the Siemens SIMOTICS S-1FK7 series. This model builds upon the high-performance permanent magnet synchronous motor platform by incorporating an EnDat 2.2 absolute encoder and an integrated forced-air cooling system (i.e., a cooling fan). The fan is designed to provide additional cooling capacity during high-load, high-duty-cycle operation to sustain performance and prevent overheating. This model does not include a holding brake.

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Product Description

Detailed Description:

  • High Dynamic Performance: Designed with high-performance permanent magnets, offering high torque density and excellent overload capability. Suitable for dynamic applications requiring rapid acceleration and precise control.

  • High-Precision Feedback System: Integrates an EnDat 2.2 interface absolute encoder. This encoder provides absolute position information immediately upon power-up, eliminating the need for a homing routine. It supports high resolution and precise positioning with reliable communication and strong noise immunity.

  • Enhanced Cooling: The suffix “-1KH5” typically indicates that this motor is equipped with a forced cooling fan (the “K” often denotes fan cooling). This is crucial for applications where the motor operates continuously at low speeds with high torque, or under elevated ambient temperatures, to ensure stable performance. The fan requires an external power supply (typically a separate AC or DC supply).

  • Construction: Features a robust flange mounting construction (e.g., IM B5 standard). Due to the external fan, its protection rating is typically IP64 or IP65, providing effective protection against dust and water splashes.

  • Wide Range of Applications: Well-suited for applications with stringent demands on dynamic response, precision, and thermal performance. Examples include feed axis drives in large machining centers, high-speed handling equipment, continuously running packaging machinery, and scenarios where performance must be maintained in harsh environmental temperatures.

Key Specifications:

Parameter Details
Model 1FK7101-5AF71-1KH5
Series SIMOTICS S-1FK7
Motor Type Permanent Magnet Synchronous Servo Motor (PMSM)
Rated Speed Approximately 3000 or 4500 rpm (specific value requires checking manual)
Rated Torque Specific value requires checking technical manual; 1FK7101 series typically corresponds to a rated torque around 5.x Nm
Rated Power Specific value requires checking technical manual (typically > 1 kW)
Feedback System EnDat 2.2 Absolute Encoder
Cooling Method Forced Air Cooling (Integrated Cooling Fan)
Special Feature No Holding Brake (no “Z” suffix in model)
Protection Rating Typically IP64 or IP65 (verify for specific model)
Mounting Flange mounting (e.g., IM B5)
Fan Power Supply Requires a separate external power supply (typically single-phase AC or DC)
Certifications Typically includes CE, UL, CSA, etc.

 

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