OPM_LPS_33E_10K_30K_4CN_V010.doc 34/82 Operating Manual LP 33 / 10-20-30 kVA
SGT4000_010-020_RPA connection_04GB
UPS 1
UPS 2
UPS 3
UPS 4
E
E
E
E
Fig. 4.8.4-4 Control bus location RPA parallel system
Control bus location RPA parallel system
Place the cables and connect them as indicated in the diagram Fig. 4.8.4-4 following these
procedures:
• Fix the control bus cables with the appropriate tie-wrap “E”.
• Place the cables between the parallel units in separated protected conduit to avoid they
could be accidentally interrupted.
• Put in place the front screens “B, C and D” (Fig. 4.8.4-1) paying attention to not damaging
the control bus cables.
It is important to place the units in sequence of their assigned number.
A unit number from P1 to P4, is defined by the setting of parameters and displayed on the control
panel.
This number is also marked inside and outside the packaging.
The standard length of the control bus cable between two parallel unit is 8 m / 26 ft (higher length
on request = up to 15 m / 50 ft).
Maximal overall length of bus connection, between the first and the last unit, should not be longer
than 45 m (345 ft).
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