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Primary Switch Mode Inverter
UNV-F
Operation Manual
Page 8 (28)
BHB.UNV-F.D65-1050.HB101
verters lifetime. Especially the inrush currents of loads have
to be observed ( for instance, a usual computer monitor can
have an inrush current of more than 50A! ).
The connection of the non-fused earthed conductor is re-
quired. The electrical connections have to be carried out acc.
pin list in chapter 8. Please use wires acc. VDE 0100 or equal
standard. To decrease voltage losses on cables usage of big-
ger sizes of wire as specified is recommended. For instance,
a high voltage loss on battery wires can decrease the backup
time.
Following installation rules should be observed:
single inverter:
check system wiring ( polarity of DC- supply line )
check that inverter is switched off
connect DC input with open DC bushbar fuses
connect AC loads
close DC bushbar fuses
switch on the unit with front side MCB
switch on load
inverters in parallel:
check system wiring ( polarity of DC- supply line, syn-
chron bus)
check if inverters are switched off
connect DC input with open DC bushbar fuses
check wiring between inverters (synchronization wires)
connect AC loads
close DC busbar fuses
switch on the units with front side MCB s
switch on load