Description of the motor
2.1 Highlights and benefits
1FW6 Built-in torque motors
24 Configuration Manual, 07/2017, 6SN1197-0AE00-0BP9
Highlights and benefits
2.1.1
Built-in SIMOTICS T-1FW6 torque motors are designed as built-in motors for use in low-
speed direct drives with a high torque output.
These built-in torque motors are liquid-cooled, permanent-magnet-excited, high-pole-number
three-phase synchronous motors with hollow-shaft rotors. The motors are delivered as
components that are subsequently built-in. When delivered, the stator and rotor are kept
together using transport locks and the rotor is protected using a spacer film. For a complete
drive unit, bearings and rotary encoder are required.
The product range includes 9 frame sizes (or external diameters), each with at least 4
different axis lengths. Most of the motors are available for at least two different speed
ranges. Most of the stators and rotors are equipped with flanges at both ends with centering
surfaces and tapped holes, which allow them to be integrated into a machine.
The motors are designed for the SINAMICS S120 drive system.
You can use Motor Modules in the "blocksize", "booksize" or "chassis" formats.
The accuracy of a direct drive with torque motor is governed by the:
● Mechanical design of the machine
● Control technology used
● Resolution and measuring accuracy of the encoder
The potential machining accuracy of a drive system with torque motor is influenced by the:
● Mechanical rigidity and noise immunity of the drive system
● Running smoothness
The running smoothness in the axial and radial direction depends on the bearing version and
its accuracy. The requirements here can be fulfilled by means of a suitable axes design.
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