How to do a correct grounding of TM7 CANopen Bus coupler?
We have to use the recommended mounting plate (TM7ACMP), it connects via both screws to the internal functional EARTH potential, that is used for diverting any interference voltage.
There is no connection of internal ground (electronic ground e. g. CAN_GND) to EARTH (module backplane or DIN rail).
CAN_SHLD (shielding) is connected to EARTH (module backplane).
CAN_GND (common internal potential of CAN circuit) is connected to EARTH only by a capacitor and a varistor for EMI reasons.
CAN_GND of master has to be connected to CAN_GND of slave. Will be done by appropriate cable. As well as shieldings will be connected.
Publicerad för: Schneider Electric Sverige
Behöver du hjälp?
Produktväljare
Hitta snabbt och enkelt rätt produkter och tillbehör för dina ändamål.
Begär en offert
Ställ din fråga online så kontaktar vi dig.
Här köper du
Hitta enkelt närmaste Schneider Electric-distributör på din ort.
Hjälpcenter
Hitta alla supportresurser som du behöver på ett ställe.