1. Description of easyE4 control relay
1.9 Safety regulations
CAUTION
INTERFERENCES
Screw all plug-in connections or lock them into place in order to
improve screening.
Signal cables must not be routed in the same cable duct with power
cables.
Before putting the system into operation, check all cable connections
to make sure that everything has been wired properly.
Make sure that all voltages and signals have the required values as
specified in the technical data.
CAUTION
SAFELY DIVERTING ELECTRICAL INTERFERENCE CURRENTS
The devices must be connected to a central earth point with a con-
ductor that is as short and has as low a resistance as possible.
l
Ground connection characteristics:
Wire cross-sectional area ≧ 1.5 mm², length ≦ 350 mm
easyE4 needs to be connected to the conductive structure in, e.g., the
control panel using the central earth point (earthing screw). This
method of earthing is mandatory required for proper function.
DANGER
STRAY CURRENTS
Large equalizing currents between the functional earthing system and
the ground system of different devices may result in fire or in mal-
functions due to signal interference.
If necessary, route an equipotential bonding conductor, with a
cross-sectional area that is several times larger than that of the
cable shielding, parallel to the cable.
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easyE402/24 MN050009ENEaton.com
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