MTS Multipurpose Elite - Manual (Page 343)

Description Item
Note:
You add the Progress table as a Test-Run Display activity.
Indicate the duration of the Dwell command activity in either time or
frequency. Termination
• Duration: Enter the time and unit of measurement.
• Signal: Click the ellipsis to open the Select a Signal window where you
select a signal.
• Comparison: Select from the drop-down menu when the Dwell activity
will end.
• Value: Enter the value and unit of measurement or variable used in the
calculation at which the Dwell activity will maintain the command.
The Dwell activity maintains at the current value (this is the default). Dwell at Current Value
Advanced button: Click to open the Advanced Command Properties window
and suppress the cycle counter for the duration of the Dwell activity.
Specifies the channel. Click the green plus sign to open the Select Channel
window. You can specify multiple channels. Channel List
Specifies the control mode or control mode variable. Specify a control mode
for each channel you select. Control Mode
This feature appears when you clear the Dwell at Current Value box. Enter
a value and unit of measurement or variable for when the Dwell activity
should end.
End Level
Setting Dwell at a Specific Level
If you want the Dwell activity to maintain command at a specified level instead of the current level:
1. Clear the Dwell at Current Value check box.
2. Enter a value or variable and unit of measurement in the End Level box.
The rate at which the command ramps to the specified value is as follows:
• For electromechanical systems using Insight electronics, the rate is the maximum rate of the crosshead
for the test frame.
• For servohydraulic systems using Series 793 Controller software, the rate is the Setpoint ramp rate.
The Setpoint control is in the Station Manager application (Tools > Channel Options > Command
Options). By default, this rate is set to 2.0 seconds. The execution time is proportional to full scale. If
the value has less distance to travel, the execution time is correspondingly less than the specified time.
MTS TestSuite | 343
Test Activities