11-7
IM 253710-01E
Waveform Analysis
11
• Number and type of characters that can be used in the equation
• Number of characters
50 characters or less
• Types of characters
Characters that are displayed on the keyboard or a space
Setting the unit
• Number of characters
8 characters or less
• Types of characters
Characters that are displayed on the keyboard or a space
Converting the scale of the computed waveform
The upper and lower limits of the display frame used to display the computed
waveform can be set. Select the method to set these limits from the following
choices.
• Auto
Sets the method to auto scaling. The upper and lower limits of the display are
automatically determined from the maximum and minimum values of the computed
result.
• Manual
Sets the method to manual scaling. The upper and lower limits can be set
arbitrarily as necessary.
Setting the upper and lower limits for manual scaling
Set the values in the range from –9.9999E+30 to 9.9999E+30.
Note
•
If a channel of an element that has no module installed is used as an operand in the equation,
the operand is handled as a zero.
•
An Equation (Math1 or Math2) cannot be placed inside another equation (Math1 or Math 2).
•
The equation of Math1 or Math2 cannot be placed inside the equation of a user-defined
function.
•
The TREND waveform (including TRENDM, TRENDD, and TRENDF) of the waveform
displayed at the ends of the screen that is less than one period is not displayed. The TREND
waveform is displayed over one period of the waveform.
•
On products (PZ4000) with firmware version before 2.01, a coefficient cannot be multiplied to
the result of TREND and FFT functions (2
∗
TREND or 3
∗
FFT, for example). On products
(PZ4000) with firmware version 2.01 or later, a coefficient cannot be multiplied to the result of
a FFT function (3
∗
FFT, for example).
•
When the computation region or the equation is changed, do a re-computation. For
information pertaining to changing the computation region and re-computation, see section
11.1.
•
You can also set whether or not to display the upper and lower limits (ON/OFF). For the
procedures related to turning ON/OFF the display, see section 9.6, “Turning ON/OFF the
Upper and Lower Limit Displays.”
•
When the time base is set to external clock or when the measurement mode is set to
harmonic, the TINTG function performs computation by considering one sampled data point
as one-second data.
•
The [Mode] of the waveform computation as well as [Math1] and [Math2] cannot be turned
[ON] when averaging (see section 10.5) is turned [ON].
11.2 Setting the Equation, Converting the Scale of the Computed Waveform