Siemens SINAMICS V90 Operating Manual page 98

Task navigation
4.4 Diagnostics
Area Item
Zoom
File operation
Note:
In frequency domain chart, only three buttons
④
Chart
⑤
Time domain chart
T
Y
Y(T)
Note:
You can select a coordinate by clicking its designation, then the selected coordinate displays yellow.
Frequency domain chart
Frequency
98
Description
Zooms in the current curves with a specified scale.
Zooms out the current curves with a specified scale.
Restores curves in the chart.
Opens an existing .trc file for curve display in the chart.
Saves the current recording of values as a .trc file.
, and
Time domain chart:
•
Displays the time chart in curves and records measured values of parameters.
Frequency domain chart:
•
Available for mathematically computed curves and displays the Fourier trans-
formation.
Bode diagram:
•
Available for mathematically computed curves.
Coordinate T (time):
t1: Real-time value of coordinate t1
•
t2: Real-time value of coordinate t2
•
dt: Automatically calculated duration
•
The calculation formula is as follows:
dt = t2 - t1
Coordinate Y:
y1: Real-time value of coordinate y1
•
y2: Real-time value of coordinate y2
•
dy: Automatically calculated value range
•
The calculation formula is as follows:
dy = y2 - y1
y(t1): Real-time value at the cross point of coordinate t1 and selected curve.
•
y(t2): Real-time value at the cross point of coordinate t2 and selected curve.
•
dy(t): Automatically calculated real-time value range.
•
The calculation formula is as follows:
dy(t) = y(t2) - y(t1)
Displays real-time frequency value of the horizontal cursor coordinate in the
chart.
are active.
SINAMICS V-ASSISTANT Online Help
Operating Manual, 02/2015, A5E32187373-003