AMETEK ReFlex - Manual (Page 254)

ReFlex Power™ DC Power Supplies
M380056-01 Rev K 6-51
6.5.4
L
OAD CONNECTION
C
ONFIGURATIONS
The output of the DC power supply module is isolated from chassis ground,
allowing either positive, negative, or floating outputs with respect to chassis
ground. Connections to the load are made at the front panel output connector
terminals. Ensure that a wire gauge is utilized that can carry the programmed
current without overheating.
Remote sensing of the output voltage is required to meet accuracy and
regulation specifications. The sense leads should be connected to the point in
the load circuit where the voltage is to be precisely regulated. If a distribution bus
is utilized for multiple loads, the point of voltage sensing is important to ensure
that the voltage regulation is acceptable for all of the loads. In general, the point
of sensing is selected to minimize interaction of the various loads through line
drops caused by their load currents.
CAUTION
Operating the power supply with either the positive or negative output
lead at greater than the float voltage specification limit above chassis
ground could result in damage to the module.
S TANDALONE C ONFIGURATION
Single loads are connected directly to the front panel output terminals, and
the DC power supply module is configured to operate in the standalone
mode. Twist the load wires or maintain them closely in parallel for their entire
length to minimize parasitic inductance and coupling from external circuits.
Use the heaviest gauge practical to minimize line drop. The remote sense
wires should be twisted, and may need shielding depending on the electrical
noise environment of the application. Figure 6-19 shows a standalone load
connection with remote sensing.