Siemens SIPART PS2 6DR5 series, Краткое руководство по эксплуатации

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SIPART PS2 (6DR5...)
A5E03436620-AB, 01/2017
15
WARNING
Unsafe extra-low voltage
Risk of explosion in hazardous areas due to voltage flashover.
•
Connect the device to an extra-low voltage with safe isolation (SELV).
WARNING
Lack of equipotential bonding
Risk 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".
WARNING
Unprotected cable ends
Risk of explosion through unprotected cable ends in hazardous areas.
• Protect unused cable ends in accordance with IEC/EN 60079-14.
WARNING
Improper laying of shielded cables
Risk of explosion through compensating currents between hazardous area and the non-hazardous area.
•
Shielded cables that cross into hazardous areas should be grounded only at one end.
• If grounding is required at both ends, use an equipotential bonding conductor.
WARNING
Connecting device in energized state
Risk of explosion in hazardous areas.
•
Connect devices in hazardous areas only in a de-energized state.
Exceptions:
• Devices having the type of protection "Intrinsic safety Ex i" may also be connected in energized state in hazardous
areas.
• Exceptions for type of protection "Increased safety ec" (Zone 2) are regulated in the relevant certificate.
WARNING
Incorrect selection of type of protection
Risk of explosion in areas subject to explosion hazard.
This device is approved for several types of protection.
1.
Decide in favor of one type of protection.
2. Connect the device in accordance with the selected type of protection.
3. In order to avoid incorrect use at a later point, make the types of protection that are not used permanently
unrecognizable on the nameplate.