Sorensen DCS-E Series 3kW Supplies Installation
M362295-01 Rev D 2-11
Figure 2-8 Maximum Load Wire Length
N
OISE AND
I
MPEDANCE
E
FFECTS
To minimize noise pickup or radiation, load wires should be shielded-twisted pair wiring of as
short a length as possible. Connect the shield to the chassis via a rear panel mounting screw.
Where shielding is impossible or impractical, simply twisting the wires together will offer 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.
2.7.2 Making the Connections
Load connections to the power supply are made at the positive and negative output terminals
(or bus bars) at the rear of the power supply. Refer to the rear panel diagram in Figure 1-2.
The power supply provides three load wiring mounting holes on each bus bar terminal as
specified in the following table.
Load Wiring Mounting Holes Diameter Hardware Size
One (1) per terminal 0.332" 1/4" (5/16" for 8V and 12V models)
Two (2) per terminal 0.190" on 0.5" centers #10
When making connections to the bus bars, ensure each terminal's mounting hardware and
wiring assembly is placed to avoid touching the other terminal (or EMI core) and shorting the
power supply output. Heavy connecting cables must have some form of strain relief to avoid
loosening the connections or bending the bus bars.
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