1FK7042-2AK71-1CG1

What type of motor is this unit?

It is a Siemens SIMOTICS S-1FK7 compact permanent-magnet synchronous motor designed for precise motion control in industrial automation applications.

What is the rated speed of the motor?

The rated speed at the 100 K operating condition is 6,000 rpm.

What torque does the motor provide?

The motor has a rated torque of 1.5 Nm, a static torque of 2.50 Nm at 60 K and 3.00 Nm at 100 K. Its maximum torque is 10.5 Nm.

What is the maximum permissible operating speed?

The maximum permissible speed is 9,000 rpm, both mechanically and when controlled by the inverter.

Does the motor include a holding brake?

No. This configuration is supplied without a holding brake, so the application must not rely on the motor to hold its position when power is removed.

Which encoder is fitted to the motor?

The motor uses an AM24DQI absolute encoder with 24-bit resolution and a 12-bit multiturn function covering 4,096 revolutions.

What level of environmental protection does the enclosure provide?

The enclosure is rated IP65, providing protection against dust ingress and water jets when installed with the appropriate connections and mating components.

How is the motor cooled?

The 1FK7042-2AK71-1CG1 uses natural cooling and does not depend on a separately powered cooling fan.

What mounting arrangement does the motor use?

The motor has an IM B5 flange mounting arrangement and can also be installed in the associated IM V1 and IM V3 orientations.

What type of shaft is supplied?

This configuration has a plain shaft end. Shaft dimensions, coupling fit and load requirements should be checked before installation.

What are the motor's rated and maximum currents?

The rated motor current is 2.5 A, while the maximum current is 15.3 A. Siemens specifies a recommended motor module with a 5 A rated inverter current and a 15 A maximum inverter current.

Does the motor include temperature monitoring?

Yes. A Pt1000 temperature sensor is incorporated to provide motor temperature monitoring.

What is the motor's efficiency?

The specified efficiency is 89.0 per cent under the stated operating conditions.

How many poles does the motor have?

The motor has eight poles, contributing to its controlled torque characteristics and suitability for dynamic servo applications.

What electrical connections are provided?

Rotatable plug connectors are provided for both power and signal connections, allowing their orientation to be adjusted to suit the machine layout.

What is the approximate motor weight?

The net weight of the standard motor configuration is approximately 4.6 kg.

What is the motor's shaft height?

The shaft height is 48 mm, which is an important consideration when matching the motor to an existing mounting arrangement.

What applications is this motor commonly suited to?

This compact synchronous motor is suited to precision positioning, packaging machinery, machine tools, handling systems, printing equipment and other automated machinery requiring responsive speed and torque control.

Can this motor be used as a direct replacement for another servo motor?

A direct replacement is possible only when the mechanical dimensions, mounting arrangement, shaft, encoder interface, connectors, current ratings, speed range and torque characteristics are compatible with the existing system.

Which drive platform is associated with the published motor characteristics?

The published motor characteristics reference operation with a SINAMICS S120 system using an ALM 400 V configuration. The selected drive and motor module must match the motor's electrical and feedback requirements.