Honeywell UDA2182 manual PID Tuning, PID 2 Tune Disable default

Models: UDA2182

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Configuration

 

 

 

Table 6-14 PID Tuning

 

 

 

 

 

 

 

 

Sub-menu

Parameter

 

Selection or

 

 

 

Parameter Definition

selection

 

 

Range of Setting

 

 

 

 

 

PID 1 Tune

Accutune

 

Enable

 

When enabled, the analyzer will start

PID 2 Tune

 

 

Disable (default)

 

controlling to the setpoint while it identifies the

 

 

 

 

 

process and adjusts the Gain or Proportional

 

 

 

 

 

Band (P), Rate (I), and Reset Time (D) tuning

 

 

 

 

 

constants in response to setpoint changes

 

 

 

 

 

and/or Process Variable disturbances.

 

 

 

 

 

 

 

 

 

Fuzzy Logic

 

Enable

 

Fuzzy Overshoot Suppression minimizes

 

 

 

Disable (default)

 

overshoot after a setpoint change or a process

 

 

 

 

 

disturbance.

 

 

 

 

 

The fuzzy logic observes the speed and

 

 

 

 

 

direction of the PV signal as it approaches the

 

 

 

 

 

setpoint and temporarily modifies the internal

 

 

 

 

 

control response action as necessary to avoid

 

 

 

 

 

an overshoot.

 

 

 

 

 

There is no change to the PID algorithm, and

 

 

 

 

 

the fuzzy logic does not alter the PID tuning

 

 

 

 

 

parameters.

 

 

 

 

 

This feature can be independently Enabled or

 

 

 

 

 

Disabled as required by the application to work

 

 

 

 

 

with Accutune.

 

 

 

 

 

 

 

 

 

Use Prop Band

 

Enable

 

When enabled, Proportional band is used

 

 

 

Disable (default)

 

instead of Gain (default).

 

 

 

 

 

See “Gain or Prop Band”.

 

 

 

 

 

 

 

 

 

Use RPM

 

Enable

 

When enabled, Repeat per minute is used

 

 

 

Disable (default)

 

instead of Minutes per Repeat (default).

 

 

 

 

 

See “Reset”.

 

 

 

 

 

 

 

Gain or Prop Band

 

Gain – 0.1% to

 

Gain (default) – is the ratio of output change

 

 

 

1000.0%

 

(%) over the measured variable change (%)

 

 

 

PB – 0.1 to

 

that caused it.

 

 

 

 

 

 

 

 

 

 

 

1000.0%

 

G =

100 %

 

 

 

 

 

default = 1.000

 

PB %

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

where Prop Band is the proportional Band (in

 

 

 

 

 

%of Input Range)

 

 

 

 

 

Proportional Band (Prop Band) - is the

 

 

 

 

 

percentage of the range of the measured

 

 

 

 

 

variable for which a proportional controller will

 

 

 

 

 

produce a 100 % change in its output.

 

 

 

 

 

 

 

Rate

 

-0.035 to 10.000

 

RATE action, in minutes affects the control

 

 

 

default = 0.000

 

output whenever the deviation is changing; and

 

 

 

 

affects it more when the deviation is changing

 

 

 

 

 

 

 

 

 

 

faster. The amount of corrective action

 

 

 

 

 

depends on the value of Gain.

 

 

 

 

 

 

 

 

 

January 2009

UDA2182 Universal Dual Analyzer Product Manual

97

Page 109
Image 109
Honeywell UDA2182 manual PID Tuning, PID 2 Tune Disable default