YOKOGAWA WT500 User Manual page 76

Single-Phase, Two-Wire System Wiring Example (Applicable for models 760201,
760202, and 760203)
Single-Phase, Three-Wire System Wiring Example (Applicable for models 760202
and 760203)
SOURCE
N
Input terminal 1
IM 760201-01E
3.9 Wiring the Circuit That You Will Measure for Direct Input
The assignment of elements to the input terminals in the wiring example 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."
Note
• After you have finished wiring, you must select the wiring system. For details, see section 4.2,
"Selecting the Wiring System."
• The thick lines on the wiring diagrams are the sections where the current flows. Use wires
that are suitable for the current levels.
If three input elements are available, three single-phase, two-wire systems can be set up.
See section 3.7 for information about which of the wiring systems shown below should
be selected.
SOURCE LOAD
U
±
I
±
Input terminal
LOAD
SOURCE
U
±
I
±
Input terminal
If three input elements are available, two single-phase, three-wire systems can be set up
(elements 1 and 2, or elements 2 and 3).
U
±
I
±
Input terminal 2
SOURCE
SOURCE
LOAD
N
SOURCE
U
±
I
±
U
LOAD
U1
±
±
I
I1
!pm!
I
I1
U
U1
LOAD
±
±
I
I1
U
U1
±
LOAD
±
U2
U
I2
I ±
3-15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
App
Index