Siemens sipart ps2 NCS Mode D'emploi page 59

Operating Instructions
Position controller (open)
NCS
Cable gland
Figure 8 Connecting the NCS to the EMC filter module
6. Ground connection: This is automatically connected to ground potential
of the system when fixing to the console by the plate on the back of the
NCS. This ground connection only works when the console is
connected with system ground with low resistance. Ensure this by
measuring the resistance. You may have to ensure grounding by an
additional line from the NCS to ground potential.
NCS
A5E00097485-06
Terminal end
Cable shield
Preparing for Operation
Sequence:
Vcc yellow
Vref green
Vpos white or black
GND brown
EMV filter module
C73451-A430-D23
57