Grundfos CREC Installation And Operating Instructions Manual page 10

• Signal relay output
– Signal relay 1:
LIVE:
You can connect supply voltages up to 250
VAC to the output.
PELV:
The output is galvanically separated from
other circuits. Therefore, you can connect the
supply voltage or protective extra-low voltage
to the output as desired.
• Mains supply (terminals N, PE, L or L1, L2, L3,
PE).
+24 V* +24 V* +24 V*/5 V*
+
* If you use an external supply source, there must
be a connection to GND.
Fig. 6 Connection terminals
10
NC
C1
NO
4 AI1
2 DI1
+
5
+5 V
6 GND
A
GENIbus A
Y
GENIbus Y
B
GENIbus B
3
GND
15
+24 V
8
+24 V
26 +5 V
23
GND
Terminal Type
Normally
NC
closed contact
C1 Common
Normally open
NO
contact
4 AI1
2 DI1
5 +5 V
6 GND
A GENIbus, A
Y GENIbus, Y
B GENIbus, B
3 GND
15 +24 V
8 +24 V
26 +5 V
23 GND
Function
Signal relay 1
(LIVE or PELV)
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V /
0-10 V
Digital input,
configurable
Supply to
potentiometer and
sensor
Ground
GENIbus, A (+)
GENIbus, GND
GENIbus, B (-)
Ground
Supply
Supply
Supply to
potentiometer and
sensor
Ground