Siemens TV Converter Box 611 Manual De Usuario

 

Motor components of the built-in motor and options 

 

3.3 Cooling 

Temp–F 

Temp–F supplies an analog signal that is proportional to the temperature and for a 

symmetrical current load of the three-phase windings provides information about the average 

motor temperature. 
 

 

 

Note 
The temperature sensor (Temp–F) only senses the winding temperature between two 

phases or in one phase in the stator. However, the phases in the synchronous motor are 

loaded to different degrees depending on the particular operating mode, so that in the worst 

case, the phases that have not been measured have the higher temperatures. 

 

 

3.3 

Cooling 

The heat loss generated by the stator winding must be dissipated by a water-cooling system. 

For this purpose, the machine manufacturer must connect the cooling duct to a cooling 

circuit in a heat-exchanger unit. For characteristic curves indicating a rise in temperature and 

drop in pressure of the cooling medium between the inlet and return flow circuit in the cooler 

as a function of the volume flow rate, see "Technical data and characteristics". 
In certain operating statuses (e.g. at high speeds or in S1 mode), the rotor can heat up 

further due to iron loss. The rated motor torques specified in the data sheets (see "Technical 

data and characteristics") are valid during operation with water cooling with an inlet 

temperature of 35 °C and a rotor flange temperature of max. 60 °C. To ensure that these 

conditions are maintained, additional measures may have to be taken to cool the rotor. 

 

NOTICE 

 

If the heat from the rotor cannot be sufficiently dissipated via the flange, this can cause the 

rotor to heat up excessively in the upper speed range in S1 mode, which could 

demagnetize the magnets. 

 

 

 

 

Note 
Depending on the load and operating mode, the average temperature in the stator and rotor 

can reach 120°C. Different temperature conditions in the stator and rotor can cause the 

motor components to expand. The amount of heat transferred into the machine construction 

as well as the radial and axial thermal expansion of the motor must be taken into account in 

the design. 

 

1FW6 Built-in torque motors 
Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7 

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