6-25
IM 760301-01E
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App
Index
Waveform Display
Explanation
For functional details, see section 2.6.
• ON/OFF
A cursor can be placed on the displayed waveform to measure and display the value
at any point. It can be used to measure the voltage and current of various sections of
the waveform and the data on the horizontal axis (X-axis).
• ON:
Performs cursor measurement.
• OFF: Does not perform cursor measurement.
• Item under Measurement
Select the target waveform for the cursor measurement from below. The selectable
items vary depending on the installed elements.
U1, I1, U2, I2, U3, I3, U4, I4, Speed,
*1
Torque,
*1
Math1,
*2
and Math2
*2
*1 Applicable only to products with the motor evaluation function (motor version).
*2 Applicable only to products with the advanced computation (/G6 option). Math waveforms
are displayed only in waveform computation mode.
• Measured items
• Y+:
Vertical value of (Y-axis value)
• Yx:
Vertical value of cursor x (Y-axis value)
•
∆
Y:
The difference between the Y-axis values of and cursor x
• X+:
X-axis value of from the left end of the screen
• Xx:
X-axis value of cursor x from the left end of the screen
•
∆
X:
The difference between the X-axis values of and cursor x
• 1/
∆
X: Reciprocal of the difference between the X-axis values of and cursor x
• Movement Path of the Cursor
Since the WT3000 P-P compresses the sampled data (see section 2.7), two data
points, maximum and minimum values, are displayed at the same time axis position.
Therefore, you can select the path on which the cursor moves and the data on which
to perform cursor measurements from the following:
• Max
Moves along the maximum values on the time axis and measures the value at
each point.
• Min
Moves along the minimum values on the time axis and measures the value at each
point.
• Mid
Moves along the middle of the maximum and minimum values on the time axis and
measures the value at each point.
• Moving the Cursor
• Cursors move on the selected waveform.
• The range of movement of cursors is from the left end to the right end of the
screen.
• The movement step of cursors is (the time corresponding to one screen)
÷
500.
Note
•
if immeasurable data exists, *** is displayed in the measured value display area.
•
∆
Y is measured even if the unit is different. The result has no unit in this case.
•
If the crest factor is set to 3, the allowed range of cursor measurement vertically is
±
300% of
the range. If the crest factor is set to 6, it is
±
600% of the range.
6.9 Cursor Measurement