UPS for 480 Vac Grid, User Guide, doc. rel. 4.0
78
Figure 55: dc Buses
3.
Compare your measured value to the number to the right of the screen (see Figure 56), which
is the UPS’s measurement. If your measured value differs from the UPS’s measured value,
enter your measured value into the field labeled Negative dc voltage.
4.
Next, measure the voltage between the positive (“+“) dc bus and the midpoint bus bar. If your
measured value differs from the UPS’s measured value (see Figure 56), enter your measured
value into the field labeled battery Positive dc voltage.
Figure 56: dc voltage calibration screen
5.
Press Confirm.
