Honeywell UDC2500 manual English Numeric Code Current Duplex Range SPLIT-This, For Example

Models: UDC2500

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Configuration

 

 

 

 

 

 

 

 

 

Function Prompt

Selection or Range of Setting

 

Parameter

 

Lower Display

 

Upper Display

 

Definition

 

English

Numeric

 

English

Numeric

 

 

 

 

 

Code

 

 

Code

 

 

 

 

 

 

50

 

 

CURRENT DUPLEX RANGE (SPLIT)—This

 

 

 

 

 

 

setting should be used for Relay/Current and

 

 

 

 

 

 

Current/Relay Duplex Outputs. It can also be

 

 

 

 

 

 

used for Current Duplex when an Auxiliary

 

 

 

 

 

 

Output board is present. This enables the

 

 

 

 

 

 

normal control current output to provide heat

 

 

 

 

 

 

control and the auxiliary current output to

 

 

 

 

 

 

provide cool control. To enable this:

 

 

 

 

 

 

• AUX OUT in the Options Set Up group

 

 

 

 

 

 

 

must be selected for Output.

 

 

 

 

 

 

The Auxiliary Current Output is scaled as

 

 

 

 

 

 

 

desired for 0-50 % controller output.

 

 

 

 

 

 

Deadband for this configuration only

 

 

 

 

 

 

 

applies to the Current Output. The

 

 

 

 

 

 

 

Auxiliary Output must have the Deadband

 

 

 

 

 

 

 

scaled in.

 

 

 

 

 

 

FOR EXAMPLE:

 

 

 

 

 

 

If a 2 % Deadband is desired, then enter 2.0

 

 

 

 

 

 

for the Deadband selection in the Control

 

 

 

 

 

 

Algorithm group. This will apply Deadband to

 

 

 

 

 

 

the Current Output. In the Options group, set

 

 

 

 

 

 

the Auxiliary Output LOW VAL selection to

 

 

 

 

 

 

49.0 and the HIGH VAL selection to 0.0.

 

 

 

100

 

 

CURRENT DUPLEX RANGE (FULL)

 

 

 

 

 

 

enables the Current Output to provide both

 

 

 

 

 

 

heat and cool functions for control over 0-

 

 

 

 

 

 

100 % of the controller output. The PID heat

 

 

 

 

 

 

parameters apply when the output is greater

 

 

 

 

 

 

than 50 % and the PID cool parameters

 

 

 

 

 

 

apply when the output is less than 50 %. The

 

 

 

 

 

 

second current output is not required for this

 

 

 

 

 

 

type of duplex operation.

 

 

 

 

 

 

 

 

 

4/07

UDC2500 Universal Digital Controller Product Manual

53

Page 67
Image 67
Honeywell UDC2500 manual English Numeric Code Current Duplex Range SPLIT-This, For Example, Current Duplex Range Full