Functional Ground - Siemens SCALANCE XR-100WG Operating Instructions Manual

Connecting up

4.6 Functional ground

Figure 4-3
4.6 Functional ground
Grounding options
The grounding (functional grounding) is implemented via the mounting brackets on the device
or via the grounding screw or the grounding bolt of the device.
Figure 4-4
Figure 4-5
With 240 VAC variants the device is grounded via the power cable.
Functional ground
EMC disturbances are diverted to ground via the functional ground. This ensures the immunity
of the data transmission.
The functional ground must be implemented with low impedance. The connection of the
functional ground must be established directly on the mounting plate or the DIN rail terminal.
To connect the functional ground, use a copper cable of category 20 AWG or a cable with a cross-
section ≥ 0.75 mm
38
Position of the device installation connector in PoE variants
Position of the grounding screw on the front of the device.
Position of the grounding bolt on the back of the device for PoE variants.
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Operating Instructions, 09/2020, C79000-G8976-C455-04
SCALANCE XR-100WG