YOKOGAWA WT500 User Manual page 80

Wiring Example of a Single-Phase, Two-Wire System (1P2W) with a Shunt
Resistor
Wiring Example of a Single-Phase, Three-Wire System (1P3W) with a Shunt
Resistor
SOURCE
OUT H
N
IM 760201-01E
3.10 Wiring the Circuit That You Will Measure with a Current Sensor
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 H OUT L
U
Input terminal
±
External current sensor
input connector
(EXT)
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."
SOURCE
Shunt resistor
±
I
Earth side
OUT L OUT H
I
±
OUT L
U
Input terminal 1
±
External current sensor
input connector
(EXT)
Clamp-type current sensor
that outputs voltage
U
±
External current sensor
input connector
(EXT)
LOAD
U
Input terminal
±
External current sensor
input connector
(EXT)
I ±
OUT H OUT L
Input terminal
LOAD
U
Input terminal 2
±
External current sensor
input connector
(EXT)
3-19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
App
Index