Siemens TV Converter Box 611 User Manual

Motor components of the built-in motor and options 

 

3.3 Cooling 

Effects when water cooling is not used 

If water cooling is not used, the motor can only be loaded in continuous operation 

(depending on the size, power loss, emissions area, convection, and installation conditions 

in the machine) with a significantly reduced continuous torque (M << M

N

). The max. torque 

M

MAX

 of the motor can be fully utilized here. 

 

WARNING 

 

Without water cooling: 
Significant reduction of continuous torque (depending on the thermal connection to the 

surrounding construction) and considerable rise in the temperature of the machine 

construction. 
 

This is why a water-cooling system is essential. 

 

In the case of axes that are to be operated without water cooling, the reduction of the 

continuous motor torque and the thermoelastic deformation of the machine construction 

(warping through expansion) must be taken into account in the drive configuration and 

design. 

 

 

 

 

Note 
Motors with integrated cooling should not be operated without water cooling. 

 

 

3.3.1 

Cooling circuits 

Cooling circuit requirements 

We recommend that the cooling circuits be designed as closed systems, to prevent the 

growth of algae. The maximum permissible pressure is 10 bar.  

 

 

Note 
We do not recommend that the cooling circuits of machines are also used to cool the motors: 

Due to accumulated dirt and long-term deposits, blockage may result! This especially applies 

to cooling-lubricating medium circuits.  

 

If the cooling circuits of the machines are also used to cool the motors, then they must fulfill 

all of the requirements listed here. Also note the demands on the cooling medium as well as 

the maximum standstill times of cooling circuits according to the specifications of the cooling 

medium manufacturer! 

 

1FW6 Built-in torque motors 

50

 

Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7