Using Multiple Supplies - Xantrex XFR 7.5-140 Operating Manual

Using Multiple Supplies

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You can operate power supplies of the SAME MODEL with outputs in series or in
parallel to obtain increased load voltage or increased current. Split supply operation
gives you two positive outputs, or a positive and a negative output.
Note If your application requires the use of isolated programming inputs, contact the
manufacturer about the optional ISOL interface.
Release 3.1
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WARNING
There is a shock hazard at the load when using a power supply with a rated or
combined output greater than 40 V. To protect personnel against accidental
contact with hazardous voltages created by series connection, ensure that the
load, including connections, has no live parts which are accessible. Also ensure
that the insulation rating of the load wiring and circuitry is greater than or equal to
the maximum or combined output voltage of the power supply.
CAUTION
Do not connect power supplies from different manufacturers in parallel or in
series.
CAUTION
The remote programming inputs are internally referenced to the supply's
negative output. Do not connect remote programming ground lines
(J2 terminals 3, 5, and 7) to the supply's positive output.
Local Operation
Using Multiple Supplies
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