3.4 Design
3.4.1 Motor components
3.4.1.1 Motor design
The built-in torque motor contains the following components:
• Stator
The stator comprises an iron core and a 3-phase winding.
The winding is potted to ensure that the power loss can be dissipated more eectively. For
liquid cooling, the motor uses water as coolant (main cooler). The cooling system design
depends on the frame size (outer diameter) of the motor, refer to the "Cooling method" table
at the end of this chapter.
• Rotor
The rotor is the reaction part of the motor and consists of a cylindrical hollow steel shaft with
permanent magnets attached around its circumference.
• Cooling connection adapter (option)
For motors with integrated cooling, you can purchase a cooling connection adapter for main
and precision coolers connected in parallel to a cooling unit.
3.4.1.2 Motors with a cooling jacket
The cooling jacket surface of the motor contains circular grooves which, in conjunction with a
surrounding construction provided by the machine manufacturer, create a closed liquid cooling
circuit.
The machine OEM must provide the coolant intake and return at the surrounding machine
assembly.
Description
3.4Design
1FW6 built-in torque motors
Operating Instructions, 09/2022, A5E52220812B AA 39
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