Grundfos RSI - Example of Control Connections

6.3 Example of control connections
The terminals of the Standard I/Os and the Relays are described below. The terminals shown on shadowed
background are assigned for signals with optional functions selectable with DIP switches. See more information
in RSI Installation Manual.
Standrad I/O
1
12
2
13
3
14
4
15
5
16
6
17
7
18
8
19
9
30
10
A
11
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
30
A
B
+10 Vref
AI1+
AI1-
AI2+
AI2-
24 Vout
GND
DI1
DI2
DI3
CM
24 Vout
GND
DI4
DI5
DI6
CM
AO1+
AO-/GND
+24 Vin
RS485
RS485
Modbus
Modbus
0-10V / 0/4-20mA
0/4-20 mA / 0-10V
1/0
0-10V / 0/4-20mA
TM080021
Pos. Signal
1 Reference output
2 Analogue input, voltage or current
3 Analogue input, common
4 Analogue input, voltage or current
5 Analogue input, common
6 24 V aux. voltage
7 I/O ground
8 Digital input 1, Start/stop
9 Digital input 2, Tank level switch
10 Digital input 3, Well level switch
11
Common for DI1-DI6
2)
12 24 V aux. voltage
13 I/O ground
14 Digital input 4, Flow switch
15 Digital input 5, Flow meter
16 Digital input 6, AC operation
17 CM, common for DI1-DI6
18 Analogue output, voltage or current
Pos. Signal
19 Analogue output, common
30 24 V auxiliary input voltage
A Serial bus, negative
B Serial bus, positive
2)
Can be isolated from ground, see RSI Installation Manual.
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English (GB)