en/ACS800-04/U4 Hardware Manuals - VAE ProSys sro

69360 degrees groundingInsulation1234Double-shielded cableSingle-shielded cableWhen the outer surface of the shield is covered with non-conductive material• Strip the cable carefully (do not cut the grounding wire and the shield)• Turn the shield inside out to expose the conductive surface.• Wrap the grounding wire around the conductive surface.• Slide a conductive clamp onto the conductive part.• Fasten the clamp to the grounding plate with a screw as close as possible to theterminals where the wires are about to be connected.Connecting the shield wiresSingle shielded cables: Twist the grounding wires of the outer shield and connectthem through the shortest possible route to the nearest grounding hole with a cablelug and a screw. Double shielded cables: Connect each pair cable shield (twistedgrounding wires) with other pair cable shields of the same cable to the nearestgrounding hole with a cable lug and a screw.Do not connect shields of different cables to the same cable lug and groundingscrew.Leave the other end of the shield unconnected or ground it indirectly via a fewnanofarads high-frequency capacitor (e.g. 3.3 nF / 630 V). The shield can also begrounded directly at both ends if they are in the same ground line with no significantvoltage drop between the end points.Keep the signal wire pairs twisted as close to the terminals as possible. Twisting thewire with its return wire reduces disturbances caused by inductive coupling.Electrical installation