Honeywell UDC2500 manual Band, Hyst, Failsf, Three Position Step Failsafe, Output

Models: UDC2500

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Page 79
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Configuration

 

 

 

 

 

 

 

 

 

 

Function Prompt

Selection or Range of Setting

 

 

Parameter

 

Lower Display

Upper Display

 

 

Definition

 

English

Numeric

English

Numeric

 

 

 

 

 

 

Code

 

Code

 

 

 

 

 

OUT Hi

811

 

 

 

HIGH OUTPUT LIMIT—This is the highest

 

 

 

 

 

 

value of output beyond which you do not

 

 

 

 

 

 

want the controller automatic output to

 

 

 

 

 

 

exceed.

 

 

 

0 % to 100 %

 

 

For relay output types.

 

 

 

–5 % to 105 %

 

 

For current output types.

 

OUT Lo

812

 

 

 

LOW OUTPUT LIMIT—This is the lowest

 

 

 

 

 

 

value of output below which you do not want

 

 

 

 

 

 

the controller automatic output to exceed.

 

 

 

0 % to 100 %

 

 

For relay output types.

 

 

 

–5 % to 105 %

 

 

For current output types.

 

 

 

 

 

 

 

 

 

D BAND

813

 

 

 

DEADBAND is an adjustable gap between

 

 

 

 

 

 

the operating ranges of output 1 and output 2

 

 

 

 

 

 

in which neither output operates (positive

 

 

 

 

 

 

value) or both outputs operate (negative

 

 

 

 

 

 

value).

 

 

 

–5.0 to 25.0 %

 

 

Time Duplex

 

 

 

0.0 to 25.0 %

 

 

On-Off Duplex

 

 

 

0.5 to 5.0 %

 

 

Three Position Step

 

 

 

 

 

 

 

 

HYST

814

0.0 to 100.0 % of

 

 

HYSTERESIS (OUTPUT RELAY) is an

 

 

 

PV

 

 

adjustable overlap of the ON/OFF states of

 

 

 

 

 

 

each control output. This is the difference

 

 

 

 

 

 

between the value of the process variable at

 

 

 

 

 

 

which the control outputs energize and the

 

 

 

 

 

 

value at which they de-energize.

 

 

 

 

 

 

 

Only applicable for ON/OFF

 

 

 

 

 

 

ATTENTION

 

 

 

 

 

 

control.

 

 

 

 

 

 

 

 

 

FAILSF

815

0 to 100 %

 

 

FAILSAFE OUTPUT VALUE—The value

 

 

 

 

 

 

used here will also be the output level when

 

 

 

 

 

 

you have Communications SHED set to

 

 

 

 

 

 

failsafe or when NO BURNOUT is configured

 

 

 

 

 

 

and Input 1 fails.

 

 

 

 

 

 

 

Applies for all output types

 

 

 

 

 

 

ATTENTION

 

 

 

 

 

 

except Three

Position Step Control.

 

 

 

 

 

 

 

 

FAILSF

816

 

 

 

THREE POSITION STEP FAILSAFE

 

 

 

 

 

 

OUTPUT

 

 

 

0

 

 

0 PCT—Motor goes to closed position.

 

 

 

100

 

 

100 PCT—Motor goes to open position.

 

 

 

 

 

 

 

 

 

4/07

UDC2500 Universal Digital Controller Product Manual

65

Page 79
Image 79
Honeywell UDC2500 manual Band, Hyst, Failsf, Three Position Step Failsafe, Output