DCP200 Profile Controller & Recorder - Product Manual

Control Configuration Sub-Menu

Table 10. Control Configuration Sub-Menu Screens

Control Configuration:

 

Control Enable/Disable

 

Sets the method used to enable/disable the control output(s). From:

 

 

 

Enabled (always); Disabled (always); Enable/Disable via Digital Input

 

 

 

A or B, or Operator Selectable (allows control output(s) to be turned

 

 

 

off from Operation Mode). Caution: The instrument is not able to

 

 

 

control the process when control is disabled. The Output Power

 

 

 

Lower Limit parameters are also ignored. Use with care!

 

Auto/Manual Mode

w

Sets the method used to select Automatic or Manual Control. From:

 

Access

 

Automatic (always); Manual (always); Select via Digital Input A or B,

 

 

 

or Operator Selectable (allows automatic or manual control to be

 

 

 

selected from Operation Mode). Caution: In Manual Mode, the user

 

 

 

must monitor and alter power to correctly control the process (0 to

 

 

 

100% or -100 to +100% for dual control). Manual power is not

 

 

 

restricted by the Output Power Limit parameters. Use with care!

 

Control Type

w

Set to Single Control for Primary control only (e.g. Heating or Cooling

 

 

 

only) or to Dual for Primary and Secondary Control outputs (e.g.

 

 

 

Heating & Cooling).

 

Primary Control Action

w

Set the Primary Control Output for Reverse or Direct Action. Reverse

 

 

 

action applies more primary power as the process falls further below

 

 

 

setpoint (e.g. heating applications). Direct action applies more

 

 

 

primary power as the process rises further above setpoint (e.g.

 

 

 

cooling applications).

 

 

 

If Dual Control is used, the secondary output action is always

 

 

 

opposite to the Primary action.

 

Control Status

 

Displays the current Process Variable and Setpoint values to aid

 

 

 

manual tuning – This screen is Read Only.

 

Power Output Level

 

Displays the current Primary and Secondary control power levels

 

 

 

(each 0 to 100%) to aid manual tuning – This screen is Read Only.

 

Primary Proportional

 

Sets the width of the Primary Proportional Band between 0.5% and

 

Band

 

999.9%, or select On-Off control. – This screen is Read Only during

 

 

 

automatic tuning.

 

Secondary Proportional

 

Sets the width of the Secondary Proportional Band between 0.5%

 

Band

 

and 999.9%, or select On-Off control. – This screen is Read Only

 

 

 

during automatic tuning.

 

Integral Time Constant

 

Sets the Integral Time Constant (Automatic Reset) from 1s to 99min

 

 

 

59s or OFF. – This screen is Read Only during automatic tuning.

 

Derivative Time

 

Derivative Time Constant (Rate) from 1s to 99 min 59s or OFF.

 

Constant

 

This screen is Read Only during automatic tuning.

 

Manual Reset (Bias)

 

Sets the Manual Reset (Proportional Band Bias) from 0-100%

 

 

 

or -100 to +100% for Dual Control.

 

Overlap / Deadband

 

Sets the Overlap (+ve values) or Deadband (-ve values) between

 

 

 

Primary & Secondary Proportional Bands when Dual Control is used.

 

Primary On-Off

 

Sets the Primary On-Off control hysteresis (deadband) from 0.1 to

 

Differential

 

10.0% of Span (centred about setpoint), when Primary On-Off control

 

 

 

is used.

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Configuration & Use

51-52-25-150, Issue 1 – April 2009

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Honeywell DCP200 manual Control Configuration Sub-Menu

DCP200 specifications

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