Siemens SIPART PS2 Operating Instructions Manual page 78

Connect
5.1 Basic safety instructions
Lack of equipotential bonding
Danger of explosion through compensating currents or ignition currents through lack of
equipotential bonding.
● Ensure that the device is potentially equalized.
Exception: It may be permissible to omit connection of the equipotential bonding for devices
with type of protection "Intrinsic safety Ex i".
Unprotected cable ends
Danger of explosion through unprotected cable ends in hazardous areas.
● Protect unused cable ends in accordance with IEC/EN 60079-14.
Improper laying of shielded cables
Danger of explosion through compensating currents between hazardous area and the non-
hazardous area.
● Only ground shielded cables that run into the hazardous area at one end.
● If grounding is required at both ends, use an equipotential bonding conductor.
Unsuitable cables and/or cable glands
Danger of explosion in hazardous areas.
● Only use suitable cables and cable glands complying with the requirements specified in
● Tighten the cable glands in accordance with the torques specified in Chapter "Technical
● When replacing cable glands use only cable glands of the same type.
● After installation check that the cables are seated firmly.
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WARNING
WARNING
WARNING
WARNING
Chapter "Technical data".
data".
SIPART PS2 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00127926-AB