Grundfos CRE Installation And Operating Instructions Manual page 16

OC
DI
+24 V*
+24 V* +24 V*/5 V*
+24 V*
OC
+24 V* GND
+24 V* +24 V* +24 V*/5 V*
+
+24 V* +24 V* +24 V*/5 V*
* If you use an external supply source, there must be a connection
to GND.
Connection terminals, CRE, CRIE, CRNE, CRKE, SPKE, MTRE
and CME pumps
Terminal Type
Normally closed
NC
contact
C1 Common
NO Normally open contact
Normally closed
NC
contact
C2 Common
NO Normally open contact
16
NC
C1
NO
NC
C2
NO
18
GND
11
DI4/OC2
19 Pt100/1000
17 Pt100/1000
12 AO
GND
9
+5 V*
14
AI3
1
DI2
21 LiqTec
20 GND
22 LiqTec
DI
10 DI3/OC1
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
25
GDS TX
24 GDS RX
+5 V*
7 AI2
Function
Signal relay 1
(LIVE or PELV)
Signal relay 2
(PELV only)
Terminal Type
18 GND
110.5 -
3.5 V /
DI4/OC2
0-5 V /
0-10 V
19 Pt100/1000 input 2
17 Pt100/1000 input 1
12 AO
9 GND
14 AI3
1 DI2
21 LiqTec sensor input 1
20 GND
22 LiqTec sensor input 2
10 DI3/OC1
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
25 GDS TX
24 GDS RX
7 AI2
Connection terminals, CME pumps manufactured prior to
October 1, 2017
This information is optional for CRE, CRIE, CRNE, CME, SPKE and
MTRE pumps.
CME pumps manufactured before October 1, 2017 have these
connections:
Function
Ground
Digital input/output,
configurable.
Open collector: Max. 24 V
resistive or inductive.
Pt100/1000 sensor input
Pt100/1000 sensor input
Analog output:
0-20 mA / 4-20 mA
0-10 V
Ground
Analog input:
0-20 mA / 4-20 mA
0-10 V
Digital input, configurable
LiqTec sensor input
(white conductor)
Ground (brown and black
conductors)
LiqTec sensor input
(blue conductor)
Digital input/output,
configurable.
Open collector: Max. 24 V
resistive or inductive.
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
Grundfos Digital Sensor output
Grundfos Digital Sensor input
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V / 0-10 V