Eaton XC-152 Series Manual

3 Installation3.3 Communication cablesCompact PLC XC-152 05/17 MN050001ZU EN www.eaton.com 293.3.1 Preparing the cables with the SUB-D plugThe design of the wiring is an essential factor for reliable operation and elec-tromagnetic compatibility (EMC).3.3.1.1 Wiring requirements• The cables must be screened.• The cable screen must consist of a copper braid.• This cable screen must be terminated to the connector shell with a low-impedance bond across a large area.3.3.1.2 Connecting the cable screenFigure 4: Connecting the cable screen▶1. Insulate the cable end so that approx. 3 cm of screen braid is exposed①.▶2. Fold back the screen braid over the cable sheath ②.▶3. Attach heat-shrink tubing approx. 3 cm in length over the folded screenbraid or use a rubber grommet.• 5…8 mm of the screen braid must be exposed at the cable end.• The folded screen braid end must be covered by the heat-shrink tub-ing or the rubber grommet ③.▶4. Fit the SUB-D plug to the cable end:• The exposed metal screen braid must be clamped to the connectorcasing with the cable clamp.NOTICEThe EMC values stated in the technical data (immunity andemission) can only be guaranteed by observing this prescribedpreparation!30 mm5…8 mm123