3-19
IM 760201-01E
Before You Start Measuring
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App
Index
The following wiring examples are for connecting shunt resistors. When connecting a
clamp-type current sensor that outputs voltage, substitute the shunt-type current sensor
with the clamp-type.
Shunt resistor
±
±±
I
OUT LOUT H
External current sensor
input connector
(EXT)
Input terminal
U
External current sensor
input connector
(EXT)
Input terminal
U
Clamp-type current sensor
that outputs voltage
The assignment of elements to the input terminals in the figures below varies depending
on the number of installed input elements. For details, see “Number of Installed Input
Elements and Wiring Systems” in section 2.3, “Measurement Conditions.”
Wiring Example of a Single-Phase, Two-Wire System (1P2W) with a Shunt
Resistor
SOURCE
LOAD
Earth side
Shunt resistor
±
±
I
OUT L OUT H
External current sensor
input connector
(EXT)
Input terminal
U
Wiring Example of a Single-Phase, Three-Wire System (1P3W) with a Shunt
Resistor
SOURCE LOAD
±I
OUT L
OUT H
±
± ±
I
OUT L
OUT H
N
External current sensor
input connector
(EXT)
Input terminal 1
U
External current sensor
input connector
(EXT)
Input terminal 2
U
3.10 Wiring the Circuit That You Will Measure with a Current Sensor