73
UPS for 480 Vac Grid, User Guide, doc. rel.4.0
Figure 49: Power Walk-In screen
The UPS gently raises the dc voltage, suppressing inrush current that would otherwise be
experienced by the power input source.
8.2.3.
Setup > dc/dc
The
Setup > dc-dc
menu provides access to parameters related to the dc-to-dc conversion
modules.
Most of these parameters are for calibrating the UPS’s readings of the several dc voltages related
to the conversion function.
Remember that the dc-to-dc conversion modules boost the battery voltage to provide the Ac
modules the high voltage they require. The dc-dc modules convert the battery voltage of 540 Vdc
to 870 Vdc required by the Ac modules. The dc-to-dc modules also step down the dc output
voltage from the rectifier to a voltage more suitable for charging the batteries.
