Motor components and options
4.1 Motor components
1FW6 Built-in torque motors
Configuration Manual, 07/2017, 6SN1197-0AE00-0BP9
73
Motors with integrated dual-circuit cooling
These motors are equipped with a ready-to-connect, integrated dual-circuit cooling system,
which provides considerable thermal insulation with respect to the mechanical axis
construction.
The dual-circuit cooling system comprises a main and precision cooler
(thermo-sandwich® principle).
An internal cooling circuit (main cooler) dissipates most of the winding losses P
v
of the stator.
A thermal insulation layer between the stator and the mounting flanges of the stator prevents
heat from flowing from the motor winding to the machine construction.
Any heat that does flow through the insulation layer is captured, for the most part, by a
second heat sink (precision cooler) on the flange surfaces and dissipated. This ensures that
the temperature on the mounting surfaces of the stator remains suitably low under all
permissible operating conditions.
Figure 4-3 Motor components of the 1FW616 to 1FW629 built-in torque motors with integrated
cooling (2 cooling circuits)
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