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Installation
Load Wiring
40 Operating Manual for XPR Series Power Supply
Load Wiring
Length for
Operation
with Sense
Lines
For applications using remote sensing, or for improved voltage regulation at the load,
you must limit the voltage drop across each load line. We recommend that you use
larger load wiring to ensure a smaller voltage drop (1V maximum under full load
conditions), although units will compensate for up to 5V drop in each line with the
remote sense lines connected. The combined voltage drop across the load lines and
load cannot exceed the rated output of the supply.
Noise and
Impedance
Effects
To minimize noise pickup or radiation, use the shortest possible length of
shielded-twisted pair wiring for load lines. Connect the shield to the chassis via a rear
panel mounting screw. Where shielding is not possible or is impractical, twisting the
wires together offers some noise immunity. When using local sense connections, use
the largest practical wire size to minimize the effects of load line impedance on the
regulation of the supply.