Configuration

 

Function Prompt

 

Selection or Range of Setting

 

 

Parameter

 

Lower Display

 

Upper Display

 

 

Definition

 

English

Numeric

 

 

English

Numeric

 

 

 

 

 

Code

 

 

 

Code

 

 

 

 

IN2 HI

703

 

 

999 to 9999

 

 

INPUT 2 HIGH RANGE VALUE in

 

 

 

 

 

engineering units is displayed for all inputs

 

 

 

 

 

floating in

 

 

 

 

 

 

 

 

 

but can only be configured for linear or

 

 

 

 

 

engineering units

 

 

 

 

 

 

 

 

 

square root transmitter characterization.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Scale the #2 input signal to the display value

 

 

 

 

 

 

 

 

you want for 100 %.

 

 

 

 

 

 

 

 

EXAMPLE:

 

 

 

 

 

 

 

 

Process Variable = Flow

 

 

 

 

 

 

 

 

Range of Flow = 0 to 250 Liters/Minute

 

 

 

 

 

 

 

 

Actuation (Input 2) = 4 to 20 mA

 

 

 

 

 

 

 

 

Characterization (XMITTER) = LINEAR

 

 

 

 

 

 

 

 

Set IN1 HI display value to 250

 

 

 

 

 

 

 

 

Set IN1 LO display value to 0

 

 

 

 

 

 

 

 

Then 20 mA = 250 Liters/Minute

 

 

 

 

 

 

 

 

and 4 mA = 0 Liters/Minute

 

 

 

 

 

 

 

 

 

The control setpoint will be

 

 

 

 

 

 

 

 

ATTENTION

 

 

 

 

 

 

 

 

limited by the

range of units selected here.

 

 

 

 

 

 

 

 

 

 

IN2 LO

704

 

 

999 to 9999

 

 

INPUT 2 LOW RANGE VALUE in

 

 

 

 

 

engineering units is displayed for all inputs

 

 

 

 

 

floating in

 

 

 

 

 

 

 

 

 

but can only be configured for linear or

 

 

 

 

 

engineering units

 

 

 

 

 

 

 

 

 

square root transmitter characterization.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Scale the #2 input signal to the display value

 

 

 

 

 

 

 

 

you want for 0 %. See example above.

 

 

 

 

 

 

 

 

 

The control setpoint for Input

 

 

 

 

 

 

 

 

ATTENTION

 

 

 

 

 

 

 

 

2 will be limited

by the range of units

 

 

 

 

 

 

 

 

selected here.

 

 

 

 

 

 

 

 

 

 

RATIO2

705

 

 

-20.0 to 20.0

 

 

RATIO ON INPUT 2—Select the Ratio value

 

 

 

 

 

you want on Input 2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BIAS 2

706

 

 

-999 to 9999

 

 

BIAS ON INPUT 2 — Bias is used to

 

 

 

 

 

compensate the input for drift of an input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

value due to deterioration of a sensor, or

 

 

 

 

 

 

 

 

some other cause. Select the bias value you

 

 

 

 

 

 

 

 

want on Input 2.

 

 

 

 

 

 

 

 

 

 

FILTR2

707

 

 

0 to 120 seconds

 

 

FILTER FOR INPUT 2—A software digital

 

 

 

 

 

filter is provided for Input 1 to smooth the

 

 

 

 

 

0 = No Filter

 

 

 

 

 

 

 

 

 

input signal. You can configure the first order

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

lag time constant from 1 to 120 seconds. If

 

 

 

 

 

 

 

 

you do not want filtering, enter 0.

 

 

 

 

 

 

 

 

 

 

60

UDC2500 Universal Digital Controller Product Manual

4/07

Page 74
Image 74
Honeywell UDC2500 manual IN2 HI, IN2 LO, RATIO2, FILTR2