5 1VLM000651, Rev.3, en 2014.01.21
should be done the same way as in the case of VT Guard Pro (Fig. 22, Fig.) Separate power supply is needed for
diagnostic part. There are two recommended ways how to supply power to the diagnostic part (described in Fig. 4
and Fig. 5
5).
The earthed star-point (n1, n2, n3) has to be connected to the X2:1 terminal (diagnostic part)
and earthed part of the open delta (dn3) configuration to the terminal X1:2 (functional part), for the connection
on Fig. 4.
Fig. 4– Recommend connection of the diagnostic supply
Fig. 5 – Recommend connection of the diagnostic supply
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