Logic
/
µ C
24VDC
Warn
Ready
0V
Error
DOC
DO0
RX / TX
1CA
2CA
1CB
2CB
L1
L2
L3
L1
L2
L3
*)
#)
VI15x
L
N
L2
L1
—
Wiring diagram of the VI15x modules
Wiring VI15x Inputs and Outputs
The diagram below shows the block diagram and wiring of both the VI150 and the VI155 modules.
The relay output is a normally open contact and can be freely used.
The inputs L1, L2, L3 must be connected to to corresponding supply phases in three phase network.
The inputs L1 must be connected to N and L2 to L in a single phase network.
The 0 V of the VI150 supply must be connected to ground for proper measurement.
*) Functional earthing only VI150. Con-
nection at the 24 V DC power supply
#) Only VI155
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