NGPS – User’s Manual
22
1.5
Remote Sensing
There is a potential shock hazard at the sense point when
using power supply with rated output voltage greater than 60
V. Anyway, even at lower output voltages, the energy hazard
is still present due to the high current capability of the unit.
Ensure that the connections at the load ends are protected to
prevent accidental contact with hazardous voltages or
accidental short circuit (e.g. with tools, screwdriver, etc.) of
the output lines.
A short from
V
SENS
+
or
V
OUT
+
to
V
SENS
–
or
V
OUT
–
pins will
cause damage to the power supply. Reverse the sense wire
might cause damage to the power supply in local and remote
sensing. Do not connect
+S
to
–
or
–S
to
+.
The NGPS mounts a voltage-sensing connector on the rear panel that allows
using the voltage sensing feature, especially when using the power supply in C.V.
mode. Anyway, even in C.I. mode it is possible to use this feature, with the advantage
of having a more accurate output voltage read. The voltage-sensing connector is shown
in
Figure 5
: Remote sensing connector
The NGPS is provided with a
factory-default
configuration, with a mating
connector (on the rear panel) already shorting the pins 1-2 and 3-4 in order to have
direct sensing at the output terminals (see
and
: Remote sensing pinout for the pinout connector).
WARNING
CAUTION
Pin #1
Pin #4
