Honeywell manual UDC 3300 Controller Product Manual 207

Guaranteed soak

Program state

Program termination state

Hot Start

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.

This selection determines the program state after completion.

The selections are:

DISABL = Program is disabled

HOLD = Program on hold (RUN key restarts the program.)

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.

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.

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