1FK7103-2AF71-1BH1

What type of motor is this unit?

It is a Siemens SIMOTICS S-1FK7 compact permanent-magnet synchronous motor designed for precise motion and positioning duties in industrial automation systems.

What are the rated speed and rated torque?

The motor has a rated speed of 3,000 rpm and a rated torque of 14.0 Nm at the specified 100 K operating condition.

What is the maximum permissible speed?

The maximum permissible mechanical speed and maximum permissible inverter speed are both 5,000 rpm.

What is the maximum torque output?

The specified maximum torque is 108.0 Nm, with a maximum current of 84.0 A. Actual achievable performance depends on the drive configuration and operating conditions.

Does the motor include a holding brake?

Yes. The 1FK7103-2AF71-1BH1 incorporates a permanent-magnet holding brake rated at 43.0 Nm.

What electrical supply does the holding brake require?

The holding brake requires a 24 V DC supply with a tolerance of ±10%. Its specified coil current is 1.0 A.

What encoder is fitted to the motor?

The motor is fitted with an AS24DQI absolute single-turn encoder with 24-bit resolution, enabling accurate rotor-position feedback.

What degree of ingress protection does the motor provide?

The motor is rated IP65, providing protection against dust ingress and water jets when correctly installed with suitable mating connectors and sealing arrangements.

How is the motor cooled?

This compact motor uses natural cooling. Adequate airflow and installation spacing should therefore be considered when integrating it into a machine.

Which mounting arrangements are specified?

The motor is designed for IM B5 flange mounting and is also specified for the corresponding IM V1 and IM V3 vertical arrangements.

What type of shaft does the motor have?

It has a plain shaft end. The connected coupling or transmission component must therefore match the shaft dimensions and the intended mechanical arrangement.

What temperature monitoring device is included?

A Pt1000 temperature sensor is incorporated for motor temperature monitoring by a compatible drive or control arrangement.

What are the motor's current values?

The specified rated current is 11.5 A. Stall current is 21.0 A at 60 K and 26.0 A at 100 K, while the listed maximum current is 84.0 A.

What efficiency is specified for the motor?

The specified efficiency is 93.0% under the relevant data-sheet operating conditions.

What is the motor's approximate net weight?

The motor has a specified net weight of approximately 33.0 kg. Machine design and handling arrangements should account for this mass.

What electrical connector arrangement is used?

The motor uses rotatable connectors for its power and signal connections, allowing their orientation to be adjusted to suit the machine layout.

What is the shaft height?

The specified shaft height is 100 mm, which is an important consideration when checking mechanical alignment and installation dimensions.

What applications is this motor commonly suited to?

Its high torque capacity, absolute position feedback, compact construction and integrated holding brake make it suitable for applications such as machine tools, packaging machinery, material handling equipment and automated production systems.

Can this motor be replaced by another SIMOTICS S-1FK7 model?

A replacement should be checked against the complete Siemens ordering code and key parameters, including torque, speed, encoder type, brake configuration, shaft design, mounting arrangement, connector layout and electrical characteristics. Similar external dimensions alone do not confirm interchangeability.

What drive rating is recommended for this motor?

The engineering data lists a recommended 30 A motor module, with a maximum inverter current of 90 A and an optimum operating point of 5.4 kW at 2,500 rpm. The complete drive and motor combination should be verified against the machine's duty cycle.