Siemens MASS 2100 Operating Instructions Manual page 58

Connecting
5.1 Basic safety notes
Missing PE/ground connection
Risk of electric shock.
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 connection
NOTICE
Ambient temperature too high
Damage to cable sheath.
● At an ambient temperature ≥ 60 °C (140 °F), use heat-resistant cables suitable for an
Improper power supply
Risk 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
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).
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".
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WARNING
that the PE/ground conductor connection of the socket and power plug match each other.
diagram. First connect the PE/ground conductor.
ambient temperature at least 20 °C (36 °F) higher.
WARNING
relevant specifications can be found in the certificates, in Technical data (Page 215) or on
the nameplate.
WARNING
WARNING
MASS 2100 & FC300 (FCT030)
Operating Instructions, 06/2017, A5E39789040-AA