United Security Products AVD-45c Manuál stáhnout pdf (Strana 94)

80 UDC 6300 Process Controller Product Manual 1/03

4.5 Accutune Set Up Group, Continued

Table 4-4 Accutune Group Definitions, continued

Lower Display

Prompt

Upper Display

Range of Setting

or Selection

Parameter

Definition

ACCUTUNE 2

DISABL

TUNE

SPoNLY

TUNE + PV

SP Only + PV

ACCUTUNE - Loop 2 Available only if configured

for 2Loop or Cascade.

DISABLE ACCUTUNE 2 – Disables the Accutune

function for Loop 2.

TUNE - same as ACCUTUNE

SETPOINT ONLY – Same as ACCUTUNE

TUNE + PROCESS VARIABLE- Same as

ACCUTUNE

SETPOINT ONLY PLUS PROCESS VARIABLE -

Same as ACCUTUNE

SP CHANG*

5 to 15%

SETPOINT CHANGE - The minimum setpoint

change that will result in re-tuning must be

configured between 5% and 15%:( i.e. If the range is

0 to 2400 and 5% is configured, re-tuning will occur if

the setpoint change is 120 or larger.)

PROC GAIN*

0.10 to 10.00

PROCESS GAIN – This is the Gain of the process

being tuned on Loop 1. It is automatically calculated

during tuning process. This is normally a READ only

value. It should only need to be changed if the cont-

roller fails to identify the process. In this case, set the

value to the algebraic value of PV in percent, divided

by output in percent while in the manual mode.

SP CHANG2*

5 to 15%

SETPOINT CHANGE LOOP 2- The minimum

setpoint change on Loop 2 that will result in re-tuning

must be configured between 5% and 15%:

PROC GAIN 2*

0.10 to 10.00

PROCESS GAIN LOOP 2 – This is the Gain of the

process being tuned on Loop 2. It is automatically

calculated during tuning process. This is normally a

READ only value. It should only need to be changed

if the controller fails to identify the process. In this

case, set the value to the algebraic value of PV in

percent, divided by output in percent while in the

manual mode.

ATTENTION

Note you must disable Accutune to

change tuning constant values from the keyboard.

CRITERIA*

NORMAL

FAST

TUNING CRITERIA (SETPOINT ADAPT) - Select a

criteria best suited for your process on loop 1.

NORMAL - Original critical damping (no overshoot)

FAST - a more aggressive tuning with a minimal

possible overshoot of less than 0.5%.

* Applies to “SP Only” and “SP+PV” tuning only

Continued on next page

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