General technical data
7.4 Shipping and storage conditions
Fail-safe signal modules
68 Installation and Operating Manual, 01/2010, A5E00085586-10
7.4 Shipping and storage conditions
Conditions for fail-safe signal modules
Fail-safe signal modules exceed requirements of shipping and storage conditions to IEC
61131, Part 2. The information below applies to fail-safe signal modules which are shipped
and stored in their original packaging.
Type of condition Approved range
Free fall ≤ 1 m
Temperature from - 40 °C to + 70°C
Air pressure 1080 hPa to 660 hPa
(corresponds to an altitude from -1000 m to 3.500 m)
Relative humidity 5% to 95%, no condensation
7.5 Mechanical and Climatic Environmental Conditions
Operating conditions
The fail-safe signal modules are designed for stationary operation in weatherproof locations.
The operating conditions exceed requirements to IEC 61131-2.
The fail-safe signal modules meet conditions of application of class 3C3 according to DIN EN
60721 3-3 (locations with high traffic volume and in the immediate area of industrial plants
with chemical emissions).
Restrictions
A fail-safe signal module must
not
be operated without taking additional measures
● At locations with a high level of ionizing radiation
● At locations with severe operating conditions; for example, due to
– Formation of dust
– Corrosive vapors or gases
● In systems that require special monitoring, such as:
– Electrical systems in especially dangerous areas
Installation of the ET 200M/S7-300 and fail-safe signal modules in control cabinets is
considered a suitable additional measure.
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