Din-Rail Contact; Coding Keys; Marking Elements - WAGO 750 Series Manual

Serie 750, 753
Potentials of the Power Jumper Contacts
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3.1.5.3 DIN-Rail Contact

Many components of the I/O system transmit electromagnetic interference to the DIN-rail
via DIN-rail contacts. The DIN-rail contacts of the modules are automatically connected
when they are snapped on to the DIN-rail.
For the I/O modules, there is usually no direct connection between the DIN-rail contact
and the ground connections of the wiring interface and the associated power jumper con-
tacts. The specific design is described in

3.1.6 Coding Keys

I/O modules of the 753 Series and the associated plug-in wiring interfaces can have cod-
ing keys to prevent incorrect insertion. The coding using small plastic pins and sockets
simplifies assignment of the wiring interface to the I/O module.
More information about this

3.1.7 Marking Elements

The system components can be provided with labeling elements:
• On head stations:
– Above the indicators
System manual | Version: 3.3.1
1st potential of the field power supply
2nd potential of the field power supply, usually 0 V/ground potential
Functional ground (FE)
topic:8 Inserting Coding Keys [} 51]
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Figure 10: Potentials of the Power Jumper Contacts
& Product
Manual.
Figure 11: DIN-Rail Contact (example)
System Features
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