MTS Multipurpose Elite User Manual
Page 337
Description
Item
•
Interrupt at End of Cycle—Complete the current cycle before ending the
branch or loop.
Relative End Levels—Select to specify that the values of the end levels are
relative to the value of the control mode command signal at the time the
activity begins executing. When not checked, end levels are relative to
setpoint.
Suppress Cycle Counter—Select to prevent the channel counter from being
incremented when this activity is executed. When not checked, the channel
counter is incremented.
Select a compensator to improve the tracking and accuracy of the control
loop for the selected channel. For more information about compensators,
Compensator
see
(p. 133). The following selections may be
available with the Cycle activity.
•
No Compensator
•
Static Null Pacing—Static null pacing holds the command at its segment
boundaries to allow the sensor feedback more time to reach its target
peak.
•
Dynamic Null Pacing—Dynamic null pacing reduces the command
frequency to allow the sensor feedback more time to track the command.
•
Peak-Valley Amplitude Control—Monitors cyclic command feedback for
any amplitude roll-off or mean-level divergence. Peak-Valley Amplitude
Control increases the command amplitude if it detects amplitude roll-off
in the feedback signal. This compensator adjusts the mean command
level if it detects mean-level divergence in the feedback signal.
•
Peak-Valley-Phase—Improves the amplitude and phase tracking of the
command and sensor feedback. Peak-Valley-Phase compensates for
phase error, unlike Peak-Valley-Amplitude Control. Peak-Valley-Phase
provides good amplitude tracking on nonlinear specimens.
Peak-Valley-Phase adjusts the mean command level if it detects
mean-level divergence in the feedback.
Click the green plus sign to open the Select Channels window, and select
the channel or multiple channels to use for the activity.
Channel List
MTS TestSuite | 337
Test Activities