1FK7060-2AF71-1RA1

What type of motor is this?

This is a compact permanent-magnet synchronous servo motor from the Siemens SIMOTICS S 1FK7 range. It is designed for precise motion control applications where accurate speed and position feedback are important.

What is the rated power and speed?

The optimum operating point is 1.5 kW at 3,000 rpm. The rated speed is also 3,000 rpm, making it suitable for applications that require a balanced combination of speed and torque.

What torque does the motor provide?

The rated torque is 4.7 Nm at 100 K. Static torque is 5.0 Nm at 60 K and 6.0 Nm at 100 K, while the maximum torque is 18.0 Nm.

What are the current ratings?

The rated current is 3.7 A. Stall current is 3.60 A at 60 K and 4.45 A at 100 K. The maximum current is 15.0 A.

What is the maximum permissible speed?

The maximum permissible mechanical speed is 7,200 rpm, while the maximum permissible speed when used with an inverter is 6,700 rpm.

Does the motor include an encoder?

Yes. It is equipped with an AM20DQI absolute encoder. This provides 20-bit single-turn resolution, equivalent to 1,048,576 increments, plus 12-bit multi-turn capability across 4,096 revolutions.

Does it have a holding brake?

No. This version is supplied without a holding brake. If a brake is required for the application, that should be checked before selection.

What shaft design does it use?

The motor has a feather key shaft end. This makes it suitable for mechanical transmission arrangements where keyed shaft coupling is required.

What is the enclosure protection rating?

It has an IP65 protection rating. This indicates good protection against dust ingress and water jets, when correctly installed with appropriate mating components.

How is the motor cooled?

It uses natural cooling. No separate forced cooling arrangement is specified for this version.

What mounting arrangements are supported?

The listed design code is IM B5, with IM V1 and IM V3 also stated. This gives flexibility for flange mounting in different installation orientations.

Is temperature monitoring included?

Yes. The motor includes a Pt1000 temperature sensor for thermal monitoring within the motor assembly.

What are the key physical characteristics?

This motor has a shaft height of 63 and a net weight of 7.1 kg. The housing colour is standard anthracite RAL 7016, and connector size is 1.

What are the main electrical constants?

Key values include a torque constant of 1.33 Nm/A, a voltage constant of 85.5 V per 1000 rpm at 20°C, winding resistance of 1.35 Ω at 20°C, and rotating field inductance of 15.2 mH.

What inverter sizing information is given?

For this Siemens 1FK7060-2AF71-1RA1 motor, the recommended rated inverter current is 5 A, with a maximum inverter current of 15 A. These values are useful when checking drive compatibility.