General Principles

General Considerations

Electric and electronical devices have to work correctly on site. This is also valid when electro-magnetic influences affect them in defined and/or expected strength. The devices themselves must not emit electro-magnetic noises.

Advant Controller components have a very high noise immunity.

When the wiring and earthing instructions are met, an error-free operation is given.

High electro-magnetic noises of nearby mounted applications must be taken in consideration during the planning phase.

An EMC compatible earthing concept will also guarantee an error-free operation here.

Note

:strong:There are three important principles to be especially considered:

  • Keep all connections as short as possible (in particular the earthing conductors)
  • Use large conductor cross sections (in particular for the earthing conductors)
  • Create low-impedance, i.e. good and large-sized contacts (in particular for the earthing conductors)

Note

:strong:Pay attention to the following:

  • Use vibration-resistant connections
  • Clean metallic contact areas
  • Use solid plug and screw-type connections
  • Use earth cable shields with clips on a well-grounded metallic surface
  • Do not use aluminium parts
  • Do not use sheath wires
  • Do not use toothed lock washers under screw connections
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Assembly: wrong

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Assembly: correct

Make a connection between the DIN rails and PE (Protective Earth). For this, use an earthing wire with a minimum conductor cross section of 10 mm².

The wire is connected to the DIN rail with an M6 screw.

A large-area contact of the DIN rail with the metallic mounting plate improves the EMC behaviour significantly, as the disturbances can be discharged more effective.