Xantrex XPD 120-4.5, Operating Manual

Page: 43 / 56

Section 3. Local Operation
Using Multiple Supplies
Release A
41
Configuring Multiple Supplies for Series Operation (Voltage Mode Only)
Connect power supplies in series to obtain a single output supply with higher output
voltage. Connect the negative (–) terminal of one supply to the positive (+) terminal
of the next supply. The total voltage available is the sum of the maximum voltages
of each supply (add voltmeter readings). The maximum current available to the load
is equal to the current of the lowest rated supply in the series. See
Figure 3.2 for a
representation of series operation.
Figure 3.2 Series Operation
Positive Load
Negative Load
Terminal
Terminal
Positive Output
Negative Output
Return Sense
Terminal
Terminal
Positive Sense
Negative Output
Positive Output
Return Sense
Positive Sense
Terminal
Terminal
Note You do not need to use remote sensing for series operation. If you choose to use
it, refer to
“Remote Sensing” on page 33
.