Grundfos IO 351 - Terminal Groups

8.6 Terminal groups
3C
4B
4A
2
3B
3A
1
5
TM032110
Terminal groups
The terminals of the groups 3A, 3B and 3C are
isolated from all other terminal groups by reinforced
insulation, 2224 VAC.
Group 1: Connection of supply voltage
Group 2: Digital outputs 1-3
Group 3A, B, C:
Digital inputs
Analog inputs and outputs
Group 4A, B:
Inputs for PTC sensor or thermal
switch
Group 5: Digital outputs 4-7
All control terminals in groupe 3 are supplied with
PELV voltage (Protective Extra-Low Voltage).
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English (GB)