Cooling - Siemens SINUMERIK 840DE sl Manual

Technical data
7.2 Ambient climatic and mechanical conditions
Biological, chemical, electrical and mechanical influences, pollutants
Shock test in operation
Degree of contamination
EMC conducted / radiation
Note
The user must consider radio interference for the complete system. Particular attention should
be paid to cabling. Please contact your sales representative for assistance and support.
Note
In a residential environment, this product can cause high-frequency interference, which may
make interference suppression measures necessary.
Have the installation and commissioning with appropriate radio interference suppression
measures performed by qualified personnel.
7.2.3

Cooling

To calculate the heat dissipation, the total power loss P
in a housing must be taken into account.
Total power loss P
Convection surface area A [m
The surface areas of the front and bottom sides are not included in the convection surface area
calculation.
Note
A recommended value for the power loss of the operator control components is contained in the
"Technical data" section of the associated component (see "Power consumption").
Means of heat dissipation
Heat dissipation can take place as follows:
● Heat dissipation by natural convection
● Heat dissipation by natural convection and internal air turbulence
● Heat dissipation by open-circuit cooling
● Heat dissipation by open-circuit ventilation
84
According to IEC 60068-2-27 test Ea (half-sine)
● 5 g peak acceleration
● 30 ms duration
● 3 shocks in all three axes in both directions
2 (only use indoors)
Class C2 according to EN 61800-3
= P + P + P +... [W]
Vtotal V1 V2 V3
]:
2
of all heat-generating components
Vtotal
Operator panel front: OP 015 black
Manual, 05/2019, A5E35227814B AB