Safety
Operating Manual PSSu E F 2DOR 8(-T)(-R)
21334-EN-13
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3
Safety
3.1
Intended use
The module may be used for failsafe applications in system environment A and B (automa-
tion system PSS 4000).
The modules PSSu E F 2DOR 8 and PSSu E F 2DOR 8-T may be used as a safety com-
ponents in accordance with the Lifts Directive 95/16/EC in accordance with the require-
ments of EN 81-1/2:1998+A3:2009, EN 81-20:2015, EN 81-50:2015, EN 81-22:2014 and
EN 115-1:2008+A1:2010.
The programmable safety system should be installed in a protected environment that meets
at least the requirements of pollution degree 2. Example: Protected inside space or control
cabinet with protection class IP54 and corresponding air conditioning.
The module meets the requirements of EN IEC 61508 up to SIL 3.
It provides failsafe outputs in accordance with IEC 61131-2. The module may be used to
switch:
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Resistive loads
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Inductive loads
The module can be used in furnaces. If the module's relay outputs shut down the entire fuel
supply and the furnace is used in continuous operation, appropriate external measures
must be used to establish diversity of the shutdown elements (requirement of EN 50156-1).
For example, an appropriate measure may be an additional, monitored switching element
(contactor or relay), which is controlled by a safe semiconductor output and is switched in
series with both relay outputs.
The module PSSu E F 2DOR 8-T is suitable for use where there are increased environ-
mental requirements (see Technical Details).
The module PSSu E F 2DOR 8-R is suitable for use where there are increased environ-
mental requirements demanded by railway applications (see Technical details).
Intended use includes making the electrical installation EMC-compliant. Please refer to the
guidelines stated in the "PSSuniversal Installation Manual". The module is designed for use
in an industrial environment. It is not suitable for use in a domestic environment, as this can
lead to interference.
The following is deemed improper use in particular:
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Any component, technical or electrical modification to the module
}
Use of the module outside the areas described in this manual
}
Any use of the module that is not in accordance with the technical details.
