Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02
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Product-specific information
2
2.1 General safety notes
Note
Safety category 4 in accordance with DIN EN 954-1 / SIL 3 in accordance with
IEC 61508 / PL e in accordance with EN ISO 13849-1:2006
The Modular Safety System 3RK3 has been designed in such a way that applications can be
implemented up to category 4 in accordance with EN 954-1/SIL 3 in accordance with IEC
61508/PL e in accordance with EN ISO 13849-1:2006.
CAUTION
Observe the ESD guidelines
Please note the ESD guidelines when handling and installing the MSS components.
Changes to the configuration and wiring must only be made when the system is
disconnected from the power supply.
MSS central units and expansions modules must only be connected and disconnected from
the system when the power supply units (PELV and SELV) are switched off.
WARNING
Hazardous Voltage.
Can Cause Death, Serious Injury, or Property Damage.
Installing devices in control cabinets
Taking the ambient conditions into account, you must install the devices in control cabinets
with the IP32, IP43 or IP54 degree of protection.
CAUTION
Noise immunity/grounding
The following must be grounded in accordance with the regulations in order to ensure noise
immunity of the MSS components:
• MSS components
• PELV / SELV power supply units (please also note the documentation for the respective
power supply unit in this regard).
The PROFIBUS must be grounded in accordance with the installation guidelines for
PROFIBUS networks (see the PROFIBUS manual).
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