Download User`s Manual - Future Design Controls

If
is selected, then when power is restored the set point starts at
the current process value, and then runs to the target set point of the
active segment. This choice provides a smoother recovery. The two
diagrams below illustrate the respective responses, Fig. 4.5 if power
fails during a dwell segment and Fig. 4.6 if it fails during a ramp segment.
Set point
Segment dwell
time = t1+t2
t1
t2
power off
power on
Ramp
Time
Dwell Segment
Segment
Figure 4.5 Recovery from PV at dwell segment
Set point
power off
Target Set point
power on
Time
Ramp Segment
Dwell Segment
Figure 4.6 Recovery from PV at ramp segment
If
is selected, then when power is restored the profiler is disabled
and it enters static mode, and SP1 is selected for control set point.
If
is selected, then when power is restored the profiler is disabled
and it enters OFF mode, all the control outputs as well as alarms and
events are off.
UM0B421A
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