Honeywell UDC3200 manual Accutune Set Up Group, Fuzzy Disable Enable Accutune Tune, AT Error

3.5 Accutune Set Up Group

Function	Selections or
Prompt	Range of Setting
Lower Display	Upper Display
FUZZY
	DISABLE
	ENABLE
ACCUTUNE
	DISABLE
	TUNE

DUPLEX
This prompt
only appears	MANUAL
when a Duplex
Control
Algorithm has
been
configured	AUTO

DISABLE

AT ERROR

(Read Only)

NONE

RUNNING

ABORT

SP2

Parameter Definition

FUZZY OVERSHOOT SUPPRESSION—Can be enabled or disabled independently of whether Demand Tuning or SP Tuning is enabled or disabled.

DISABLE—Disables Fuzzy Overshoot Suppression.

ENABLE—The instrument uses Fuzzy Logic to suppress or minimize any overshoot that may occur when PV approaches SP. It will not recalculate any new tuning parameters.

ACCUTUNE III

DISABLE —Disables the Accutune function.

DEMAND TUNING—If TUNE is selected, and tuning is initiated through the operator interface or digital input (if configured), the algorithm calculates new tuning parameters and enters them into the tuning group. This tuning requires no process knowledge and does not require line out for initialization.

DUPLEX ACCUTUNING III – These prompts only appear when a duplex output type has been configured.

MANUAL – Tune manually using LSP 1 and LSP 2 values. LSP 1 is used to derive tuning parameters associated with HEAT (output

>50 %). LSP 2 is used to derive tuning parameters associated with COOL (output < 50 %).

AUTOMATIC – Tuning is performed automatically on both HEAT and COOL sequentially. LSP 1 is used for HEAT tuning and LSP 2 is used for COOL tuning. To initiate tuning, either LSP 1 or LSP 2 must be in use.

DISABLE – The current SetPoint is used to derive a single set of blended tuning parameters. This tuning is performed over the range of the output limits similar to Simplex Tuning. The Tuning Parameters derived are placed into both the HEAT and COOL tune sets (PID 1 and PID 2).

ACCUTUNE ERROR STATUS—When an error is detected in the Accutune process, an error prompt will appear.

NONE—No errors occurred during last Accutune procedure.

RUNNING—An Accutune process is still active checking process gain, even though “T” is not lit. It does not affect keyboard operation.

CURRENT ACCUTUNE PROCESS ABORTED—Caused by one of the following conditions: changing to manual mode, digital input detected, in heat region of output but a cool output was calculated, or vice versa.

SP2—LSP2 not configured or a Setpoint other than LSP1 or LSP2 is in use.

32 UDC3200 Universal Digital Controller Operator Manual 04/08