Electromagnetic compatibility (EMC)
Installation Manual PNOZmulti Installation Manual
1002265-EN-02
13
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When laying cables without equipotential bonding or using foil shields: Connect the
shield at one end.
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If possible, use metal or metallised plugs to connect cables for serial data transfer. Al-
ways refer to the regulations relating to the fieldbus systems.
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If the shield is not to be connected at the end of the cable, it must have no connection
to the connector housing.
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If the shield is to be connected, connect it to the shield bar at the point where the cable
enters the cabinet, without making a break in the cable. Use metal cable clamps which
cover the shield over a wide surface area. Route the shield as far as the units, but do
not connect it to the units.
Digital inputs and outputs do not need shielded cables. However, if the connection cables
have a shield, it should be connected at one end.
Analogue inputs and inputs on the incremental encoder on the speed monitors should al-
ways be connected using shielded cables.
INFORMATION
A connection example is available in the chapter entitled "Connecting the
Control System", under "Analogue input module".
3.2.6
Suppression on inductive loads
Adequate protection must be provided for all inductive consumers.
3.2.7
Lighting in the control cabinet
Use low interference panel lighting for inside the control cabinet.
