![background image](http://html1.mh-extra.com/html/ifm/ecomatcontroller/ecomatcontroller_installation-instructions-manual_3949424014.webp)
ecomatController CR720S/CR721S
14
5.7 High side digital inputs (CSO)
supply
controller
VBB
30
nn
VBB
15
nn
VBB
0
nn
VBB
1
nn
VBB
2
nn
VBB
3
nn
VBB
4
nn
VBB
5
nn
GND
SYS
nn
GND
1...4
nn
input B
H
, FRQ
H
nn
input B
H
, FRQ
H
nn
GND
ANA
nn
nn GND
RES
Shield
1
Connection of the high side inputs (B
H
, FRQ
H
)
1: Connection for 3-wire sensors
►
Connect the GND of the signal source with the common GND star point�Do not
connect the GND of the signal source to GND
RES
or GND
ANA
�