Electrical Installation; Earthing - Festo CPX-CMAX-C1-1 Mounting, Installation And Diagnostics

3. Electrical installation

3.1

Earthing

Festo P.BE−CPX−CMA X−SYS−EN en 0908NH
The CMAX power is supplied via the CPX terminal.
See section 3.4.
The CMAX is earthed via the CPX terminal. See the CPX
system description.
Observe the additional earthing measures described below,
depending on the components used.
Note
Operative malfunctions can occur due to incorrect or no
earthing.
Make the specified connections at low impedance (short
·
cable with large cross−section) to the earth potential.
Unless otherwise specified, the earthing conductors must
have:
a cable cross−section of at least 2.5 mm
a cable length as short as possible (typically 20 ... 30 cm)
VPWP earthing
Connect the earth terminal of the VPWP to the earth po
·
tential of the CPX terminal. See also sections 2.4, Fig. 2/4.
Use the tapping screw provided.
Sensor interface earthing
When using a sensor interface:
Make a low−impedance connection between the earth
·
terminal of the sensor interface and the earth potential of
the CPX terminal.
2
3−3