Siemens S7-400PLC Especificaciones Pagina 34

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General specifications
1.4 Mechanical and ambient conditions for S7-400 operation
S7-400 Automation System Module Data
34 Reference Manual, Edition 09/2009, A5E00850736-06
1.4 Mechanical and ambient conditions for S7-400 operation
Operating conditions
S7-400 systems are designed for stationary use in weather-proof locations. The S7-400
fulfills the requirements for use in accordance with IEC 60721-3-3:
Class 3M3 (mechanical requirements)
Class 3K3 (climatic ambient conditions)
Use with additional measures
The S7-400 may not be used under the conditions outlined below without taking additional
measures:
at locations with a high degree of ionizing radiation
in aggressive environments caused, for example, by
the development of dust
corrosive vapors or gases
strong electric or magnetic fields
in installations requiring special monitoring, for example
elevators
electrical plants in potentially hazardous areas
An additional measure would be to install the S7-400 in a cabinet or housing.
Mechanical ambient conditions
The mechanical ambient conditions for S7-400 modules are listed in the following table in the
form of sinusoidal vibrations.
Table 1- 8 Mechanical ambient conditions
Frequency range in Hz Test values
10 ≤ f < 58 0.075 mm amplitude
58 ≤ f < 500 1 g constant acceleration
Reducing vibrations
If your S7-400 modules are exposed to severe shock or vibration, take appropriate measures
to reduce acceleration or the amplitude.
We recommend the installation of the S7-400 on damping materials (for example, rubber-
metal vibration dampers.)
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