Terminals at the front of the ontroller b oard 6.13T
6.13.2 Digital inputs and outputs
The digital in- and outputs are opto-isolated. The supply voltage must externally be provided (24V). In the
device the ground of the digital inputs is not connected to earth of the supply voltage and must be separately
connected.
The following figures show the principle schematic diagram.
Figure 6.36: Digital inputs
DO1
DO2
DO3
DO4
I_O4 OUT4
OUT3
OUT2
I_O3
I_O2
I_O1 OUT1
VN340SP
BB
GNDIO
BBS
BBO
BBW
RELS
RELO
RELW
X26
DOUT1
DOUT2
DOUT3
24VIO
Figure 6.37: Digital outputs
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