GW Instek PSU-Series User Manual - Manual (Page 64)

PSU Series User Manual
64
Local Sense
When using local sense, the sensing terminals are connected to the
local sense terminals (via the local sense connections) and thus do
not compensate for any possible voltage drop that is seen on the
load cables. Local sense is only recommended when the voltage
drop is of no consequence or for load-current applications. By
default, the sense plug is already configured to local sensing.
Local Sense
Connection
PSU Load
Output
Output
Input
Input
S+
LS+
LS-
S-
R
e
m
o
te
S
e
n
s
e
Page 62
Remote Sense
Remote sense is used to compensate for the voltage drop seen
across load cables due to the resistance inherent in the load cables.
The remote sense terminals are connected to the load terminals of
the DUT to determine the voltage drop across the load cables.
Remote sense can compensate up to 1 volt (PSU 6-200/12.5-120/20-
76), 2 volts (PSU 40-38) or 3 volts (PSU 60-25) (compensation
voltage, single line). Load cables should be chosen with a voltage
drop less than the compensation voltage.
Although you can use remote sense to compensate up to 3V for a
single line, it is recommended that the voltage drop is minimized to
a maximum of 1V to prevent excessive output power consumption
from the power supply and poor dynamic response to load changes.
WARNING
Ensure the output is off before connecting any
sense cables.
Use sense cables with a voltage rating exceeding