CR720S CR721S
11
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
A
nn
input
A
nn
GND
ANA
nn
nn GND
RES
Shield
Fig. 5: Connection of the analogue inputs (A), example CR721S
u
Connect GND
ANA
to the GND of the signal source.
Do not connect GND
ANA
to other GND connections or to the common GND star point.
6.7 Resistor inputs
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
R
nn
input
R
nn
GND
ANA
nn
nn GND
RES
Shield
Fig. 6: Connection of the resistor inputs (R), example CR721S
u
Connect GND
RES
to the GND of the signal source.
Do not connect GND
RES
to other GND connections or to the common GND star point.
Do not connect the resistor inputs to a VBB.
GB