Grundfos CMBE Instrucciones De Instalación Y Operación página 9

• two analog inputs
• two digital inputs or one digital input and one open-collector
output
• Grundfos Digital Sensor input and output
• two signal relay outputs
• GENIbus connection.
The inputs and outputs are internally separated from the mains-
conducting parts by reinforced insulation and galvanically separated
from other circuits. All control terminals are supplied with protective
extra-low voltage (PELV), ensuring protection against electric
shock.
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.
Signal relay 2
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.
Connection terminals for the power supply
Phases
Three-phase
Connection terminals for inputs and outputs
DANGER
Electric shock
Death or serious personal injury
‐
Make sure that the wires to be connected to the
connection groups below are separated from each
other by reinforced insulation in their entire lengths.
Terminals
L1, L2, L3, PE
N
L
PE
NC
NO
NC
C2
NO
OC DI
+24 V GND
+24 V +24 V +24 V/+5 V
+ +
26
23
+24 V +24 V +24 V/+5 V 25
+
+
24
+5 V
N
L
C1
1 2 3 4
10 DI3/OC1
1 2 3 4
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
+5 V
GND
GDS TX
GDS RX
7 AI2
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