System overview
2.10 Derating data
The intake temperatures in the plant/system side raw water circuit must always be at least
7K below the intake temperatures in the deionized water circuit. This ensures that the
cooling power of the Heat Exchanger Module of the deionized water circuit, specified in the
technical data, can be dissipated to the raw water circuit.
For additional information, please refer to the SINAMICS Low Voltage Engineering Manual.
2.10.2
Derating factors as a function of the ambient temperature
The units can supply 100 % output current at an ambient air temperature of between 0 °C
and 45 °C. The maximum output current decreases linearly to 90 % at ambient air
temperatures of between 45 °C and 50 °C.
Figure 2-7
38
Maximum current as a function of ambient temperature
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A