Configuring Multiple Supplies For Parallel Operation - Xantrex XPD 120-4.5 Operating Manual

Section 3. Local Operation
Using Multiple Supplies

Configuring Multiple Supplies for Parallel Operation

Connect power supplies in parallel to obtain a single output supply with a higher
output current limit. Set all of the outputs to the same voltage before connecting the
positive (+) and negative (−) terminals in parallel. The total current available is the
sum of the maximum currents of each supply.
The maximum voltage available at the load is equal to the voltage of the lowest rated
supply. When you connect two supplies in parallel, the supply with the higher
voltage setting will be in the current limiting mode, while the other supply controls
the output voltage.
Figure 3.3 Parallel Operation
42
CAUTION
!
For parallel operation , set all OVP trip points higher than the maximum output
voltage.
Positive Sense
Positive Output
Negative Output
Return Sense
Positive Sense
Positive Output
Negative Output
Return Sense
Terminal
Terminal
Terminal
Terminal
Operating Manual for XPD Series Power Supply
Positive Load
Terminal
Negative Load
Terminal