UPS for 480 Vac Grid, User Guide, doc. rel. 4.0
80
6.
Press Confirm to apply the corrected measurements.
7.
Switch off the dc block you just calibrated and switch on the next-highest block (see the
sequence numbers in Figure 57.
8.
Repeat steps 3 through 7 until all the dc-dc blocks have been calibrated.
Figure 57: Charger current calibration screen
8.2.3.4.
Dc-to-dc voltage adjustments
This function enables you to adjust the voltages out of each individual dc-dc block.
Adjustments are made to each dc/dc block separately, one block at a time.
Figure 58: dc/dc voltages adjustment screen
8.2.3.5.
“Boost” Current Calibration
The fields labeled “Positive dc voltage” and “Negative dc voltage” modify the “boost” voltage,
which is the voltage between the positive dc bus and the dc midpoint, and between the negative
dc bus and the dc midpoint.
