Grundfos MGE Serie Montage- Und Betriebsanleitung Seite 20

Terminal Type
23 GND
25 GDS TX
24 GDS RX
7 AI2
Related information
4.2.4 Connecting an external switch
4.2.7.3 Advanced functional module, FM 300
Inputs and outputs
The module has these connections:
• three analog inputs
• one analog output
• two dedicated digital inputs
• two configurable digital inputs or open-collector outputs
• Grundfos Digital Sensor input and output
• two Pt100/1000 inputs
• LiqTec sensor inputs
• 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 mains supply
Phases
Single-phase
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.
20
Function
Protective earth.
Grundfos Digital Sensor output.
Grundfos Digital Sensor input.
Analog input:
0-20 mA or 4-20 mA.
0.5 - 3.5 V, 0-5 V or 0-10 V.
Terminals
N, PE, L
L1, L2, L3, PE