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Siemens offers the second generation of its Simotics 1FK7 servomotors, which are configurable to suit a variety of applications. The line features seven shaft heights, Quick-Connect power connectors, and high-accuracy 20- and 24-bit field replaceable encoders in 10 styles for easy maintenance in the field. The company offers three versions of the servomotors: standard, high-dynamic for rapid acceleration jobs and high-inertia for maximum smooth running.
The motors are designed for operation without external cooling, and heat is dissipated through the motor surface. According to the company, the encoders are mechanically and thermally decoupled from the motor, enabling as much as 10 percent improvement in continuous (S-1) power. The decoupling also makes the encoder more resistant to vibration conditions on the machine. The servomotors also provide 3× overload, 2.5 percent torque ripple and cross-profiling for easier mounting. They are equipped with Siemens’ Drive-Cliq interface for field commissioning and unit recognition with the Siemens Sinamics S120 drive family. The motors are available with a plain shaft or keyway designed, and with or without a holding brake.
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