Ametek Sorensen XFR 1200 Watt Series - Configuring Multiple Supplies for Split Supply Operation; Figure 3-4 Split Supply Operation of Multiple Supplies

Local Operation
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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.
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. See Figure 3-4.
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. You can set the
current limits independently. The maximum current available in split
supply operation is equal to the rated output of the supplies. For example,
30 A for two 40 V, 30 A models. See Figure 3-5.
Figure 3-4 Split Supply Operation of Multiple Supplies
(Two Positive Voltages; Local sense lines shown are default J10 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.
TM-F1OP-C1XN-01.book Page 14 Thursday, October 25, 2007 9:04 PM