Xantrex XPD 120-4.5, Operating Manual

Page: 45 / 56

Section 3. Local Operation
Using Multiple Supplies
Release A
43
Configuring Multiple Supplies for Split Supply Operation
Split supply operating uses two power supplies to obtain two positive voltages with
a common ground, or to obtain a positive-negative supply.
Two Positive Voltages To obtain two positive voltages, connect the negative
output terminals of both supplies together in a common connection. The positive
output terminals will provide the required voltages with respect to the common
connection.
Figure 3.4 Split Supply Operation of Multiple Supplies (Two positive voltages)
Load Lines
Use the largest gauge and
shortest length possible
Positive Load
Terminal #1
Postive Load
Terminal #2
Negative Load
Terminal
Load
Power Supply 2
Power Supply 1
Postive Sense
Positive Output
Terminal
Negative Output
Terminal
Return Sense
Postive Sense
Positive Output
Terminal
Negative Output
Terminal
Return Sense