Siemens SIPROCESS GA700 Compact Operating Instructions page 144

Connecting
4.1 Basic safety instructions
Missing PE/ground terminal
Danger of electrocution.
Depending on the device version, connect the power supply as follows:
● Power plug: Ensure that the used socket has a PE/ground conductor connection. Check
● Connecting terminals: Connect the terminals according to the terminal assignment table.
Improper power supply
Danger of explosion in hazardous areas as result of incorrect power supply, for example,
using direct current instead of alternating current.
● Connect the device in accordance with the specified power supply and signal circuits. The
Lack of equipotential bonding
Danger of explosion through compensating currents or ignition currents through lack of
equipotential bonding.
● Make sure that equipotential bonding exists for the device.
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.
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WARNING
that the PE/ground conductor connection of the socket and power plug match each other.
Connect the PE/ground conductor first.
WARNING
relevant specifications can be found in the certificates, in Chapter "Technical
specifications (Page 79)" or on the nameplate.
WARNING
WARNING
WARNING
Devices in explosion-proof design
Compact Operating Instructions, 05/2015, A5E35134047-02