KUNBUS-COM EtherCAT
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3.2 Spacer bolt
There are three holes on the module for spacer bolts. These spacer
bolts have 2 tasks:
– they stabilise the COMS module with a direct connection to the main
board
– they are part of the earthing concept.
Illustration 2:
Holes for spacer bolts
Suitable spacer bolts
Suitable spacer bolts have the following properties:
– Conductive material
– Holes for M3 screws
– Diameter: maximum 8 mm
Connections
These spacer bolts are an important part of the earthing concept of
the COMS-Modul.
– Connect hole 1 to protective earth on the fieldbus side
– Hole 2 is not electrically connected.
– Connect the spacer bolts of hole 3 to GND (earth power supply)
Overview