PLZ-U Application Operation 5-15
5.7 Remote Sensing Function
Remote sensing is a function used to compensate for the voltage drop caused by the
resistance of the load wire when it cannot be neglected. Execute remote sensing to
accurately set the resistance and voltage and measure the voltage and power.
Since remote sensing improves the transient characteristics in CR, CV and CP
modes, operational stability can be achieved.
• If the load wire comes loose while executing remote sensing, the PLZ-U
may malfunction. Check that the connection is secure. You can prevent
accidents by connecting a protection fuse (see Fig. 5-9). Use a fuse with a
rated current of 0.1 A and a rate voltage greater than the output voltage of
the equipment under test.
• Pay attention to the polarity of remote sensing. Reversing the connection
can cause damage to the PLZ-U. Insert a protection fuse in the wiring.
• If you are not using remote sensing, remove the remote sensing wires
from the PLZ-U.
■ Remote sensing wiring
• Use AWG24 wires for the remote sensing terminals on the front panel. Use
AWG24 or thicker wires for the remote sensing terminals on the rear panel.
• For the remote sensing terminals on the rear panel, use crimp terminals for M3
screws.
1. Turn off the output of the equipment under test.
2.
Connect the PLZ-U and the equipment under test.
Connect the +S and –S remote sensing terminals to the positive (+) and negative (–)
terminals on the equipment under test, respectively.
The remote sensing should be wired at the nearest to the EUT.
Fig. 5-11 Remote sensing wiring
CAUTION
NOTE
Equipment
under test
PLZ-U Series
+S
–S
Remote sensing connector
Protection fuse
–
–
+
+
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