Honeywell UDC 3300 manual AT Error AT ERR, Read Only, Runing None Outlim Idfail Abort LOW PV

Lower Display

Prompt

AT ERROR

or

AT ERR 2

(depending on loop)

Read Only

Upper Display

Range of Setting

or Selection

RUNING

NONE

OUTLIM*

IDFAIL*

ABORT

LOW PV*

Parameter

Definition

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

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

NONE— No errors occurred during last Accutune procedure.

OUTPUT REACHED LIMITS (HIGH OR LOW)— Output set insufficiently to get to SP value.

ATTENTION This error will cause the controller to switch from Automatic to Manual mode. The output is then set to the value present at the beginning of the Accutune process.

IDENTIFICATION PROCESS FAILED— An illegal value for Gain, Rate, or Reset was calculated.

CURRENT ACCUTUNE PROCESS ABORTED— Caused by one of the following conditions:

•changing to manual mode

•digital input detected

•changing SP while PV (error) tune in progress

•in heat region of output but a cool output is calculated, or vice versa.

LOW PV— PV not changed sufficiently or the PV has increased by more than 4 % and Deadtime not determined.

*Applies to SP and SP+PV tuning only.

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