GW Instek PSB-2000 Series User Manual - Manual (Page 73)

OPERATION
73
Voltage Sense
Description The PSB-2000 series power supply units have an
output voltage remote sensing function. This
function eliminates influences of voltage drops
between the power supply unit and load, which is
caused by the contact resistance or the resistance of
the load cable conductors.
Voltage sense compensates for a voltage of up to
1V on a single terminal.
CAUTION When the voltage sense function is used, the
voltage at the front or rear terminals of the power
supply unit must not exceed the rated voltage.
If the load cables are long, the inductance and the
capacity of the load cables may cause oscillation.
To avoid oscillation, connect an electrolytic
capacitor of a several hundred to several thousand
μ
F to the load terminals.
Procedure 1. Make sure that the POWER switch is off before
making any connections.
2. Disconnect the wire that shorts the + and +S
terminals or - and -S terminals on the four-
terminal block on the left of the output
terminals on the rear panel (this will need to be
done for both channels on the PSB-2400L2).
3. Connect the positive sensing terminal (+S) to
the positive side of the load and the negative
sensing terminal (-S) to the negative side of the
load, as shown below. If the sensing wires are
disconnected, control will become unstable and
a voltage greater than the set voltage could be
applied to the load. Connect the sensing wires