YOKOGAWA WT210, User Manual, Page: 33 / 316

S-17
IM 760401-01E
Startup GuideS
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a
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t
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Displaying the Active Power on the Secondary Side of the Inverter on Display C
Carry out the following procedure to display the active power of the secondary side of the
inverter on display C.
V
W
A
B
C
VOLTAGE
AUTO
MODE
CURRENT
AUTO
RANGE
MAX HOLD TRIG
CAL
INTEGRATOR
INTEG SET
SHIFT KEY LOCK
1P3W 3P3W
3P4W 3V3A
OUTPUT
HARMONICS MEMORY
REMOTE
FUNCTION ELEMENT
HOLD
ENTER
RESET
WIRING
START STOP
LOCAL SETUP
1
m
V
k A V
TIME
ar
deg
h
h
VA
M
m
PF
k
A
M W
m
V Hz
k A
M W
2 3
FUNCTION ELEMENT
1 2 3
FUNCTION ELEMENT
1 2 3
%
Function indicator Element indicator
11.
Press
FUNCTION
of display C to select function W.
For details, see step 5 of page S-14.
12.
Press
ELEMENT
of display C to select input element 1, 3 or
Σ
. When input element
Σ
is
illuminated, the sum of active powers measured on input element 1 and 3 is
displayed. This value is the “power consumed by the load” when computing the
efficiency.
Each time
ELEMENT
is pressed the element indicator character of display C illuminates in the
order shown below. The wiring system of the circuit on the secondary side of the
inverter is three-phase, three-wire, and the circuit is connected to input elements 1 and
3 of the WT230. To show the measured value of input element 1, 3, or
Σ
on display C,
we illuminate input element 1, 3, or
Σ
.
Display C
ELEMENT ELEMENT ELEMENT ELEMENT
1 2 3
Σ
1 2 3
1 2 3 1 2 3 1 2 3
• When input element 1 is illuminated, the active power measured on input element 1 is
displayed.
• When input element 3 is illuminated, the active power measured on input element 3 is
displayed.
• When input element
Σ
is illuminated, the sum of active powers measured on input
element 1 and 3 is displayed. This value is the “power consumed by the load” when
computing the efficiency.
Tips
• The WT210/WT230 is equipped with an input filter function for eliminating noise on
the measured signal and more accurately measuring the frequency of the
measured signal. For the setup procedure, see section 4.3, “Turning ON/OFF the
Input Filter.”
• The WT230 has a function that is used to perform exponential or moving averaging
on the measured values before displaying them when the measured values are not
stable. For the setup procedure, see section 4.7, “Using the Averaging Function.”
Displaying Voltage, Current, and Active Power