Owner's manual

3. Electrical installation
3−5
Festo P.BE−CPX−CMAX−SYS−EN en 0908NH
3.2 Axis interface
The VPWP proportional directional control valve is connected
to axis interface ’X’ of the CMAX. The position measuring sys
tem or a sensor interface (depending on the displacement
encoder) is connected to the VPWP.
This forms an axis string.
The axis interface pin allocation for the CMAX, VPWP and sen
sor interface are shown
in Tab.3/2.
Pin
Allocation CMAX: X
VPWP: Out
VPWP: In
CASM: S1
1 + 24 V operating voltage
2 + 24 V load voltage
3 0 V
4 CAN_H
5 CAN_L
Housing Cable shield
1)
1)
Connect each VPWP cable shield to the earth terminal
Tab.3/2: Pin allocation of the axis interfaces
Line length
The maximum permissible line length (total) of the
KVI−CP−3−... connecting cables of the axis string is 30m
(total length CMAX  VPWP  sensor interface or displace
ment encoder).
Tab.3/3 shows the recommended connecting cables.