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VUIGN102
© Danfoss | Energy Meters | 2017.03 | 7
Installation & User Guide
Infocal 9
Electrical wiring diagram with 4-wire temperature sensors
Calculator
Terminal
Marking
Description
9
+U
+3,6V power supply (only if mains supply)
11
-q1
Ground for 1-st flow sensor (-)
10
+q1
Pulse input signal from flow meter in supply pipe
11
-q2
Ground for flow sensor
52
+q2
Pulse input signal from flow meter in return pipe
11
-q3
Ground for 3-rd flow sensor (-)
53
+q3
Pulse input signal from 3-rd flow sensor (+)
11
-q4
Ground for 4-th flow sensor (-)
54
+q4
Pulse input signal from 4-th flow sensor (+)
5
T1
Current terminal for 1-st temperature sensor “+I”
1
T1
Voltage terminal for 1-st temperature sensor “+U”
2
T1
Voltage terminal for 1-st temperature sensor “-U”
6
T1
Current terminal for 1-st temperature sensor “-I”
50
Shield terminal (for 1-st temperature sensor etc.)
7
T2
Current terminal for 2-nd temperature sensor “+I”
3
T2
Voltage terminal for 2-nd temperature sensor “+U”
4
T2
Voltage terminal for 2-nd temperature sensor “-U”
8
T2
Current terminal for 2-nd temperature sensor “-I”
50
Shield terminal (for 2-nd temperature sensor etc. )
q1 - pulse input signal from flow meter in supply pipe
q2 - pulse input signal from flow meter in return pipe
q3, q4 - pulse inputs from water meters
T1 - temperature sensor in supply pipe
T2 - temperature sensor in return pipe
Note: Only required for selected calculator type should be connected