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5.2.5.1 Ramp & Dwell
Many applications need to vary temperature or process value with time. Such applications need
a controller which varies a set point as a function of time. This Process Control Process Control Card can do
this. The set point is varied by using a set point profiler. The profile is stored as a series of "ramp" and "dwell
"segments, as shown below.
In each segment you can define the state of up to 3 event outputs which can drive either relay,
logic or Triac outputs, depending on the modules installed. A profile is executed either once, repeated a set
number of times or repeated continuously. If repeated a set number of times, then the number of cycles
must be specified as part of the profile.
The below are the available types of segment
5.2.5.1.1 Ramp
Ramp to a new set point at a set rate or in a set time
5.2.5.1.2 Time to Target
Ramp to a segment with a Set point in a set time.
5.2.5.1.3 Dwell
Dwell for a set time
5.2.5.1.4 Go Back
Jump to a specified segment in the same profile
5.2.5.1.5 End
Make this segment the end of the profile
Page 153 of 479
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