NGPS – User’s Manual
23
Figure 6
: Factory mating connector
Description
Pin
Name
V
SENSE
+
#1
+S
V
OUT
+
#2
+
V
OUT
–
#3
–
V
SENSE
–
#4
–S
Table 5:
Remote sensing pinout
By using the two “sensing” pins, it is possible to sense the output voltage
directly on the load, thus recovering possible voltage drops on the output cables up to
1V.
It is strongly suggested to use twisted cables when using the remote sensing
feature in order to minimize possible noise pick-up.
The NGPS is shipped with the mating connector for the remote sensing in the
factory-default configuration: +S and + pins are shorted as well as –S with –. This
configuration performs the remote sensing directly at the output connector of the power
unit. LS and –S pins disconnected, the remote sensing is still made but in a less
accurate way. When using the remote sensing feature, leave pins #2 (+) and #3 (
–
)
disconnected.
Follow the instructions below to configure the power supply for remote
sensing:
1.
ensure that Mains switch is on Off position “O”;
2.
remove factory jumpers between
+S
to
+
and
–S
to
–
;
3.
by using a twisted pair or shielded cable (suggested wire size is 0.3 or
0.5 mm
2
), connect the
+S
terminal to the positive output terminal and
the
–S
to the negative output terminal, as illustrated in
4.
For NGPS with output voltage rating > 60 V
,
fix the safety cover to the
rear panel using the four M3x8 mm screw.
