Wiring Vi15X Inputs And Outputs - ABB UMC100.3 Manual

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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.
24VDC
0V
*)
1CA
2CA
1CB
2CB
*) Functional earthing only VI150. Con-
nection at the 24 V DC power supply
—
Wiring diagram of the VI15x modules
Error
Ready Warn
#)
RX / TX
#) Only VI155
VI15x
/
Logic
µ C
DO0
DOC
L1
L2
L3
L1
L1
L2
L2
L3
L
N