Connect; Basic Safety Instructions - Siemens SIPART PS2 Operating Instructions Manual

Connect

5.1

Basic safety instructions

Improper power supply
Danger of explosion in hazardous areas as result of incorrect power supply, e.g. using direct
current instead of alternating current.
● Connect the device in accordance with the specified power supply and signal circuits. The
With intrinsically device version (Ex i)
Risk of explosion in hazardous areas.
For intrinsically safe device versions only the certified circuits may be connected as auxiliary
power supply, control and signal circuits.
● Make sure that the power source of the used circuits is marked as intrinsically safe.
Unsafe extra-low voltage
Danger of explosion in hazardous areas due to voltage flashover.
● Connect the device to an extra-low voltage with safe isolation (SELV).
Connecting device in energized state
Danger of explosion in hazardous areas.
● Connect devices in hazardous areas only in a de-energized state.
Exceptions:
● Circuits of limited energy may also be connected in the energized state in hazardous areas.
● Exceptions for type of protection "Non-sparking nA" (Zone 2) are regulated in the relevant
SIPART PS2 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00127926-AB
WARNING
relevant specifications can be found in the certificates, in Chapter "Technical data
(Page 283)" or on the nameplate.
WARNING
WARNING
WARNING
certificate
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