Protective Conductor And Protective Ground; Buffering; Mounting Position And Clearances - WAGO 750 Series Manual

Serie 750, 753

5.2.4 Protective Conductor and Protective Ground

The I/O System does not provide any protective conductor functionality via the field con-
nections. If a field device connected to the I/O System requires a protective ground con-
nection, this connection must not be implemented via the I/O System's field connection. If
hazardous active voltages are used, the DIN-rail must be suitably connected to protective
ground (PE).

5.2.5 Buffering

To compensate for power interruptions per IEC 61131 (PS-1 or PS-2), external buffering
is required.
Buffer capacity depends on the node configuration, which is why it is not possible to pro-
vide general information on the required capacity.

5.2.6 Mounting Position and Clearances

Maintain at least the following clearances to adjacent components, cable ducts and the
sides of enclosures and frames for the entire node structure.
Coordinate Model
Note
Modified coordinate model
In product documentation published before 2021, the height (y) and depth (z) were
swapped!
• Width = dimension along x axis = horizontal in nominal mounting position; parallel to
DIN-rail longitudinal axis
• Height = dimension along z axis = vertical in nominal mounting position
• Depth = dimension along y axis = horizontal in nominal mounting position; perpendicu-
lar to DIN-rail longitudinal axis
System manual | Version: 3.3.1
Planning
Figure 15: Installation Clearances
31