Siemens Simatic S7-400 User Manual
Page 42
General Technical Specifications
1-14
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
1.4
Mechanical and Ambient Climatic Conditions for
Operating the S7-400/M7-400
Operating Conditions
The S7-400/M7-400 is designed for weather-protected use as a permanent
installation. The S7-400/M7-400 fulfills the requirements for use in accordance with
IEC 60721-3-3:
•
Class 3M3 (mechanical requirements)
•
Class 3K3 (ambient climatic conditions)
Use with Additional Measures
The S7-400/M7-400, for example, must not be used without taking additional
measures:
•
In locations exposed to a high degree of ionizing radiation
•
In hostile environments caused, for instance, by
– Dust accumulation
– Corrosive vapors or gases
– Strong electric or magnetic fields
•
In installations requiring special monitoring, for example
– Elevators
– Electrical installations in particularly hazardous areas
An additional measure might be, for instance, installation of the S7-400/M7-400 in
a cabinet or in a housing.
Ambient Mechanical Conditions
The ambient mechanical conditions for S7-400/M7-400 modules are listed in the
following table in the form of sinusoidal oscillations.
Table 1-10 Mechanical Conditions
Frequency Range in Hz
Test Values
10
≤
f < 58
0.075 mm amplitude
58
≤
f < 500
1 g constant acceleration