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4/00 UDC 3300 Controller Product Manual 207
Guaranteed soak
Each soak segment can have a deviation value of from 0 to ± 99 which
guarantees the value for that segment.
Guaranteed soak segment values >0 guarantee that the segments process
variable is within the ± deviation for the configured soak time. Whenever
the ± deviation is exceeded, soak timing is frozen.
There are no guaranteed soaks whenever the deviation value is configured
to 0; i.e., soak segments start timing soak duration as soon as the soak
setpoint is first reached, regardless of where the process variable remains
relative to the soak segment.
The value is the number in engineering units, above or below the setpoint,
outside of which the timer halts. The range is 0 to 99.
The decimal location corresponds to input 1 decimal selection.
Program state
This selection determines the program state after completion.
The selections are:
DISABL = Program is disabled
HOLD = Program on hold (RUN key restarts the program.)
Program termination
state
This function determines the status of the controller upon completion.
The selections are:
LASTSP = controls to last setpoint and last control mode
F SAFE = manual mode, failsafe output
ATTENTION
If power is lost during a program, upon power-up the
controller will be in hold and the setpoint value will be the setpoint value
prior to the beginning of the setpoint program. The program is placed in
hold at the beginning of the first segment in the program.
Hot Start
This function determines whether LSP1 or PV is used as the setpoint
when the program is initially changed from HOLD to RUN.
The selections are:
DISABL = When the program is initially changed from HOLD to
RUN the present LSP1 value is captured as the default setpoint. If the
program is terminated or the power cycled before the program has
completed, the LSP1 is used as the control setpoint. The beginning
segment uses this value as the initial ramp setpoint.
ENABL = When the program is initially changed from HOLD to
RUN the present PV value is captured and used as the beginning setpoint
value for the ramp segment. If the program is terminated before
completion, the setpoint value will revert back to the PV value captured at
the initial HOLD to RUN transition. If the power is cycled before
program completion, upon power-up the setpoint is set to the PV value at
power-up and when the program is restarted that setpoint value is used
initially.