Siemens SINUMERIK 840D sl Manual page 23

Function-impairing dust
When working in areas where gases, dust and oils may be hazardous to functionality, the
controller must be operated in a control cabinet with a heat exchanger or with suitable supply
air.
Table 2-5
Suspended component
Deposits
Note
Dust deposits must be removed at regular intervals.
Radio interference
Applicable standards: EN 61000-6-3 and -4
Table 2-6
Conducted radio interference
Radio interference
Note
The user must consider interference radiation for the complete system. Particular attention
should be paid to cabling. Please contact your sales representative for assistance and
support.
If compliance with limit value class B (residential areas) is required, please contact your local
Siemens office or representative.
NOTICE
Please see the relevant SINAMICS documentation for EMC notes on how to deal with line
filters and reactors.
NOTICE
The Control Unit is exclusively intended for installation in ESD-protected areas. The CE-
associated ESD interference immunity limit values can only be achieved via installation in
the control cabinet. Only make physical contact using appropriate ESD protective
measures.
NCU
Manual, 07/2007, 6FC5397-0AP10-2BA0
Maximum permissible dust content in the air circulating in the control cabinet
Limit values for radio interference suppression in industrial environments
2.2 Ambient Climatic and Mechanical Conditions
0.2 mg/m
3
1.5 mg/m /h
2
Limit class as per EN 61000-6-4
A (Industry)
A (Industry)
Application Planning
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