Screening - Pilz PMI v315 ATEX Manuel D'utilisation

Earth conductor
• Connect the earthing socket on the housing (M4 press-fit socket on the
side of the housing) to the earth bus bar on the control cabinet or unit.
Use as short a copper conductor as possible (cross section min. 4 mm
• If there are several units in the control cabinet or plant, ensure the earth
conductors are connected in a star formation on the bus bar.
• The earth conductor (cross section min. 4 mm
the terminal marked
Fig. 5-4: Connection diagram for earth conductor

Screening

• Connect the power cable screening with low impedance to earth.
• Use screened data lines only
• Due to high frequency, we recommend that the screening on the data line
cable (RS 232 cable) is earthed on both sides. If you are using longer
cables and there is the possibility of transient currents, we recommend
one of the following methods:
- use equipotential bonding cable
- isolate the potentials
• Data line screening should be connected to a bus bar.
• The connection between the bus bar and the control cabinet/system
should be as short as possible and with low impedance.
• Fasten the braided screening to the screen bar over as large a surface
area as possible (e.g. with metal hose clips or polyurethane (PU) cable
clips).
Operating Manual: PMI v315 ATEX/PMI o315 ATEX
on the supply voltage connector.
2
) should be connected to
2 ).
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