Grounding Function. WAGO MODBUS Fieldbus Coupler RTU

WAGO-I/O-SYSTEM 750

750-316/300-000 Fieldbus Coupler MODBUS RTU

3.6.2 Grounding Function

System Description 33

The grounding function increases the resistance against electro-magnetic interferences. Some components in the I/O system have a carrier rail contact that dissipates electro-magnetic interferences to the carrier rail.

Figure 18: Carrier Rail Contact (Example)

Ensure sufficient grounding is provided!

You must take care to ensure the direct electrical connection between the carrier rail contact and the carrier rail.

The carrier rail must be grounded.

For information on carrier rail properties, see section “Mounting” > … > “Carrier

Rail Properties”.

The bottom CAGE CLAMP

® connectors of the supply modules enable optional connection of a field-side functional ground. This potential is made available to the I/O module arranged on the right through the spring-loaded contact of the three power contacts. Some I/O modules are equipped with a knife-edge contact that taps this potential. This forms a potential group with regard to functional ground with the I/O module arranged on the left.

Manual

Version 1.0.0