Power Loss Of Components In Rated Operation; General; Power Loss Of Control Units, Control Unit Adapters And Sensor Modules - Siemens SINAMICS S120 Equipment Manual

If air conditioners are used, the relative air humidity of the expelled air increases as the air in
the air conditioner cools and may exceed the dew point. To avoid condensation, climate
control equipment should be arranged so that cold discharged air is not directly blown onto
SINAMICS components. Using air guidance baffles, ensure that the air is adequately mixed
with the air inside the cabinet. This reduces the relative air humidity to uncritical values.
NOTICE
Damage caused by condensation
Condensation on the components can result in their failure.
• Select the air guidance and arrangement of the cooling equipment in such a way that no
• If required, install cabinet enclosure heating.
11.8.3

Power loss of components in rated operation

11.8.3.1

General

The tables below show the power loss for components during rated operation. The
characteristic values apply for the following conditions:
● Line voltage for Power Modules:
– 1 AC 200 V to 240 V with permissible deviation
– 3 AC 200 V to 240 V with permissible deviation
– 3 AC 380 V to 480 V with permissible deviation
– 3 AC 500 V to 690 V with permissible deviation
● Rated pulse frequency of the particular Power Module
● Operating components at their unit rating
11.8.3.2

Power loss of Control Units, Control Unit Adapters and Sensor Modules

Table 11- 16 Overview of power loss during rated operation for Control Units, Control Unit Adapters,
Component
Control Units
CU310-2 DP
CU310-2 PN
Control Unit Adapter
CUA31
AC Drive
Manual, 06/2019, 6SL3097-5AL00-0BP1
condensation can form on the components. The distance between the discharge
opening of the air condition equipment and the electronic equipment must be at least
200 mm.
Sensor Modules
Cabinet design and EMC for components, Blocksize format
11.8 Information on control cabinet cooling
Unit
W
W
W
Power loss
< 20
20
2,4
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