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IMPACT20 | CANopen
5.4.4 Connection of CAN Bus Lines
5.4.4.1 General Line Routing
Cable routing is a very important criterion for interference-free operation of the equipment. When
routing cables, be sure to observe the following:
1. Do not route bus cables parallel to high-voltage cables; where applicable, route in separate bundles, or cable troughs, or channels.
2. The PE cable connection must be star-shaped.
3. Prevent potential differences by connecting equipotential bonding conductors.
4. CAN-Bus cable shields must be attached to the connectors.
5. All analog signals should be carried by shielded cable.
6. Signal and power supply cables to the terminal block should be sufficiently long to prevent pull
stresses on the terminals.
5.4.4.2 Avoiding Interference Voltage
The following points must be observed in order to reduce or prevent voltage interference when setting
up a system:
1. Shielding devices and cables where stipulated (VDE 0113 and VDE 0829 etc.),
2. Suitable location of the devices and cables.
3. Take appropriate interference suppression measures for devices emitting interference (e.g. frequency transformers, valves, contactors etc.).
4. Make sure that device and shield grounding methods are massive and comprehensive.
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