Xantrex XKW 12-150, Operating Manual

Page: 78 / 90

Operation
Using Multiple Supplies
76
Operating Manual for XKW 3kW Series Power Supply
Configuring
Multiple
Supplies for
Split Supply
Operation
Split supply operation uses two power supplies to obtain two positive voltages with
a common ground, or to obtain a positive-negative supply.
To obtain
two positive voltages
, connect the negative output terminals of both
supplies together. The positive output terminals will provide the required voltages
with respect to the common connection. See
Figure 3.25 . To obtain a
positive-negative supply
, connect the negative output terminal of one supply to the
positive output terminal of the second supply. The positive output terminal of the
first supply then provides a positive voltage relative to the common connection while
the negative output terminal of the second supply provides a negative voltage. The
current limits can be set independently. The maximum current available in split
supply operation is equal to the model-rated output of the supplies used. See
Figure 3.26 .
Figure 3.25 Split Supply Operation of Multiple Supplies
(Two Positive Voltages)
(Local sense lines shown are default J3 connections)
!
CAUTION
To prevent possible damage to the supply, do not connect the remote program return
line of the negative supply to the common connection.
TERMINAL #2
TERMINAL #1
POWER SUPPLY 2
POWER SUPPLY 1
POSSIBLE
AND SHORTEST LENGTH
USE THE LARGEST GAUGE
LOAD LINES
LOAD
NEGATIVE LOAD
POSITIVE LOAD
POSITIVE LOAD
TERMINAL
TERMINAL
TERMINAL
TERMINAL
TERMINAL
RETURN SENSE
RETURN SENSE
OUTPUT RETURN
OUTPUT RETURN
POSITIVE OUTPUT
POSITIVE OUTPUT
POSITIVE SENSE
POSITIVE SENSE
TM-25OP-01XN.book Page 76 Monday, April 5, 2004 8:58 AM