GW Instek PEL-2000A Series - Remote (Sense) Connection

PEL-2000A Series User Manual
50
Remote (Sense) Connection
Background
The electronic load modules have two voltage
sense contacts: Vsense +, Vsense -. Voltage sense
can be used to help compensate for long cable
length. The longer the cable, the higher the
potential resistance and inductance, therefore a
short cable is best. Twisting the cable can help
reduce induced inductance and using the Vsense
terminals compensates the voltage drop seen
across the load leads, especially leads with higher
resistance. This is useful when used in CV, CR or
CP mode.
WARNING
Vsense + must have a higher potential than Vsense -.
Connection
The diagram below shows how a DUT can be
connected using voltage sense. Note that the sense
wires are also twisted pairs.
Single Channel
Load Module
-
-
+
+
Twisted
Pair
Twisted
Pair
+
+
-
-
DUT
-
+
Note
The wire gauge for the sense wires should be no
smaller than 16 gauge.
Input
The voltage sense terminals must use a wire
gauge of 16 to 14 (Diameter 1.29mm ~ 1.63mm).
Remote Sense
Terminal
connection
The voltage sense terminals use a screw-less
clamp connector. The clamp must be opened prior
to inserting a wire. Use a small screwdriver to
push the clamp release mechanism. Insert both
wires then release the clamp mechanism.