Rockwell Automation 2098-UWCPRG Ultraware Software User Manual - Manual (Page 107)

Rockwell Automation Publication 2098-UM001G-EN-P - February 2011 109
Configuring the Ultra3000 Drive Chapter 3
The Oscilloscope window has these parameters and commands associated with it:
Parameter Description
Channel A, B, C and D
Input Signal The drive signal to assign to the selected Channel (A, B, C or D)
from the Channel Setup dialog box that opens when you click
the down arrow to the right of this input box.
Note: The resolution of this signal may be confusing if Velocity
Feedback is selected. See the topic Velocity Motor Feedback
Resolution for information on how resolution is derived for
various motor and feedback combinations.
Scale Type Scale Types are:
• Auto
• Manual
• Same As ChA (available for Channels B,C and D)
• Same As ChB (available for Channels C and D), or
• Same as ChC (available for Channel D only)
Scale The amplitude of the selected channel input signal that can be
displayed between gridlines of the oscilloscope, in the units of
the drive signal. It is dependent on the signal selected. If the
Scale is left at its default value of 0, The data automatically
scales to fit the graph.
Note: Visible only if Scale Type is Manual.
Offset The trace offset for the selected Channel Input. Its range
depends on the signal selected. A value of zero places the zero
value of the signal at the middle grid line. A nonzero offset
shifts the trace up or down so that the offset value is positioned
at the middle grid line.
Note: Visible only if Scale Type is Manual.
Sweep Parameters
Sample Period The time, in milliseconds, between samples that constitute a
trace. The horizontal resolution of the oscilloscope is 128
samples. (For example, selecting a sample period of 1.0 ms
results in 128 ms of data being displayed.)
Note: The Sample Period has a resolution of 0.125 ms.
Samples per Division Number of samples per division. For example, 32 samples per
division will result in 4 horizontal divisions.
Trigger Source The drive signal that sets off the trigger and begins tracing the
selected channel signal, upon the occurrence of the Trigger
Mode at the Trigger Threshold. See Input Signal for a list of
available Trigger Source selections.
Trigger Mode The event that triggers oscilloscope tracing:
• Immediate: begins tracing immediately when the selected
drive signal becomes active.
• Rising Edge: begins tracing when the selected Trigger Source
value increases above the Trigger Threshold value.
• Falling Edge: begins tracing when the selected Trigger Source
value decreases below the Trigger Threshold value.
Trigger Threshold The value of the Trigger Source drive signal that begins tracing.
Trigger Mode selections are:
• Rising Edge
• Falling Edge.
Trigger Status The current status of the oscilloscope trigger:
• Idle
• Awaiting Trigger
• Collecting Data