5-5
Operating Manual: PMImicro diag
• Data lines and power lines should be laid separately to avoid capacitive
and inductive transmission (recommended minimum distance = 10 cm/
3.94").
• Screened data lines should also be laid in a different cable duct to the
main power lines.
• Power lines should be as short as possible
• Power lines should be twisted pair cables.
Earth connector
• Connect the earthing socket on the housing (M4 press-fit socket on the
side of the housing) to the earth bus bar on the control cabinet or unit.
Use as short a copper conductor as possible (cross section min. 2.5 mm
2
).
• If there are several units in the control cabinet or plant, ensure the earth
conductor is connected in a star formation on the bus bar.
• The earth conductor (cross section min. 2,5 mm
2
) should be connected
to the terminal marked on the supply voltage connector.
Fig. 5-4: Connection diagram for earth connector
