Derating Factors; Derating Factors As A Function Of Coolant Temperature - Siemens Sinamics S120 Manual

6.6.2

Derating factors

6.6.2.1

Derating factors as a function of coolant temperature

The SINAMICS S120 liquid -cooled devices are suitable for H
antifreeze as coolant, corresponding to Section Antifreeze, biocides, inhibitors (Page 335).
When H
between 5° C and 45° C. The maximum output current decreases linearly to 90% at
temperatures between 45° C and 50° C.
When H
supply 100% output current at temperatures between 0° C and 45° C. The maximum output
current decreases linearly to 90% at temperatures between 45° C and 50° C.
Figure 6-15
Liquid-cooled chassis power units
Manual, (GH7), 11/2016, 6SL3097-4AM00-0BP7
O is used as a coolant, the units can supply 100% output current at temperatures
2
O and an antifreeze mixture described above is used as a coolant, the units can
2
Maximum output current as a function of coolant temperature
Motor Modules
6.6 Technical specifications
O or a mixture of H O and an
2 2
235