Primary Switch Mode Inverter
UNV-F
Operation Manual
Page 5 (28)
BHB.UNV-F.D65-1050.HB101
pass switch monitores the connected bypass mains and syn-
chronises the inverter output with mains frequency. In in-
verter preselection mode the UNB transfers the load supply
to bypass mains in case of inverter faults, high overload, bat-
tery low voltage. The transfer is nearly without voltage inter-
ruption. After problem solving the unit switches back to in-
verter operation automatically. In case of mains preselection
mode the inverter will take over the load if mains is not pre-
sent, out of limits or badly distorted.
The primary source is programmable on static switch unit.
For the UNB a separate manual is available.
Battery
AC distribution
UNV
UNV
DC-Input
rectifier
UNB
BS
AC-Input
Mains
Manual bypass switch
Static bypass switch
Inverter
Picture 1.2:
Inverter operation
with static bypass
switch UNB