• 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.
See fig. Connection terminals, optional for CRE, CRIE, CRNE,
CRKE, SPKE, MTRE and CME pumps.
Digital input 1 is factory-set to be start-stop input where
open circuit results in stop. A jumper has been factory-
fitted between terminals 2 and 6. Remove the jumper if
digital input 1 is to be used as external start-stop or any
other external function.
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.
• Inputs and outputs
All inputs and outputs are internally separated from the power
supply-conducting parts by reinforced insulation and galvanically
separated from other circuits. All control terminals are supplied by
protective extra-low voltage (PELV), thus ensuring protection
against electric shock.
• Start-stop: (Digital input 1) = Terminals 2 and 6
• Pressure sensor: (Analog input 1) = Terminals 4 and 8
• Pressure switch: (Digital input 3) = Terminals 6 and 10
• External analog signal input: (Analog input 2) = Terminals 7 and
23
GENIbus Terminals A, Y and B
• Signal relay outputs
- 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.
• Power supply (terminals N, PE, L or L1, L2, L3, PE).
3
15
8
26
23
25
24
7
B
Y
6
5
2
4
10
A
AI2
GDS RX
GDS TX
GND
GENIbus A
GENIbus B
+5 V
+24 V
+24 V
GND
GENIbus Y
GND
+5 V
DI1
AI1
DI3/OC1
+24 V*
+
+
+24 V*/5 V*
+24 V*
+5 V*
NC
C2
NO
NC
C1
NO
+24 V*
+
+
+24 V*/5 V*
+24 V*
+24 V*
OC
DI
GND
TM053510
* If you use an external supply source, there must be a connection
to GND.
Connection terminals, optional for CRE, CRIE, CRNE, CRKE,
SPKE, MTRE and CME pumps
Terminal Type Function
NC
Normally closed
contact
Signal relay 1
(LIVE or PELV)
C1 Common
NO
Normally open
contact
NC
Normally closed
contact
Signal relay 2
(PELV only)
C2 Common
NO
Normally open
contact
10 DI3/OC1
Digital input/output,
configurable.
Open collector: Max. 24 V
resistive or inductive.
4 AI1
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V / 0-10 V
2 DI1 Digital input, configurable
5 +5 V
Supply to potentiometer and
sensor
6 GND Ground
A GENIbus, A GENIbus, A (+)
17
English (US)
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