Grundfos SI 010 CNV Montage- Und Betriebsanleitung Seite 17

Fig. 11 24 VDC and sensor connection
Terminal Description
1 External 24 VDC supply (PELV-approved)
2 Earth from external 24 VDC supply (PELV-approved)
8 Green diode which is on when SI 010 CNV is on
9 Sensor input 1 (yellow/white if a standard cable is used)
10 Sensor input 2 (yellow/white if a standard cable is used)
11 Earth for sensor (green if standard cable is used)
12 + 5 V supply for sensor (brown if standard cable is used)
In some applications it may be required to measure both pressure and flow,
but not temperature. The converter can supply two sensors and thus convert
signals from them. However, this requires that two conductors are mounted
in each of terminal 11 and 12. See fig. 12.
Fig. 12 Connection of two sensors
1 2 8
13 15 17
1
115V
I
2
230V
3
115V
4
ST1 ST2
ST1: Ch1 out - I=4-20mA ; U1=1-5V; U2=2-10V
ST2: Ch2 out - I=4-20mA ; U1=1-5V; U2=2-10V
ST3: Ch1 input voltage span; L=0.5-3.5; H=0.5-4,5
ST4: Ch1 input voltage span; L=0.5-3.5; H=0.5-4,5
1 2
Sensor1
9 10 11 12
21 22 23 24
1 1
2 2
U1
3 3
U2
4 4
9 10 11 12
Sensor 2
17