MTS Series 793 Application - Manual (Page 395)

Temperature Control Process
MTS MultiPurpose TestWare® External Control Process Descriptions 395
Temperature Control Parameter Descriptions
Command tab
Command Tab (part 1 of 2)
I TEM D ESCRIPTION
Rate Type Specifies the method with which the controller ramps the temperature to the
specified end level.
The following rate types are supported:
• Time specifies the time to run one segment.
• Frequency specifies the time to run a two-segment cycle (even though a
single segment runs).
• Rate specifies a constant rate between the starting level and the end level.
Note You cannot use Rate for a process applied to multiple channels. If you
do, an error message will appear when the procedure is locked.
Dwell Period Specifies the amount of time the temperature feedback must stay within
tolerance before the process terminates. The dwell period begins as soon as the
temperature enters the specified control tolerance range.
Note If the temperature strays outside of the tolerance range during the
dwell period, the dwell period resets. The dwell period starts over
when the temperature reenters the tolerance range.
If you choose a dwell period of zero, the process will terminate as soon as the
temperature feedback becomes within tolerance.
If your station configuration supports the monitor feature, then the dwell
period applies to both the control tolerance and monitor tolerance ranges.
Channel Specifies the channel to which the window applies.
End Level Specifies the desired temperature—that is, the temperature you want the
controller to achieve (and maintain if a dwell period is specified).
Control Tolerance Specifies the amount the control temperature feedback may vary from the
specified End Level during the Dwell Period.
This feature requires feedback from the temperature sensor associated with the
current channel—that is, the feedback used by the external temperature
controller to achieve closed-loop control.