Response Electronics CL6011B Especificaciones descargar pdf (Pagina 103)

4Ć21DCP Configuration

Original Ć June 1990 CE4.2:CL6211

Increase to Close Ċ Establishes the relationship between the output

current and the implied valve position. When YES is selected, an

increase in implied valve position causes a decrease in output current,

opening an increase-to-close valve. When NO is selected, an increase

in the implied valve position causes an increase in the output current,

opening an increase-to-open valve. The YES/NO selection may be

changed using DDP #10, INC CLO?

IVP High Limit Ċ Limits the maximum IVP value regardless of the mode

of the Direct Control point. When the IVP reaches this limit on a PI_PID_I

Direct Control point, the integral action is disabled to prevent windup.

Implied valve position is expressed as a percent, and may be tuned

using DDP #19, VO HI LM.

IVP Low Limit Ċ This is the same as the IVP high limit configuration

item, except it sets the low limit. The IVP low limit may be tuned using

DDP #18, VO LO LM.

PCA Type Ċ The PCA of the Direct Control point determines the

algorithm that will be used to process the PV. The PCA is defined on the

Direct Control Point form, and is displayed here for reference only.

Restart from Last IVP Ċ This configuration item allows the use of the

restart IVP value after a power fail has occurred. If NO is selected, the

restart IVP value defined in the restart IVP configuration item is used. If

YES is selected, the last IVP value prior to power fail is restored upon

restart.

Restart from Last Mode Ċ This configuration item allows the use of the

restart Mode after a power fail has occurred. If NO is selected, the

restart mode defined in the restart Mode configuration item is used. If

YES is selected, the last Direct Control point mode prior to power fail is

restored upon restart.

Restart IVP Ċ Defines the initial value of the IVP after a power fail, if the

restart from last IVP enable configuration item is answered NO. The

restart IVP is expressed as a percent, and may be changed using DDP

#29, RST VO.

Restart Mode Ċ Defines the initial Direct Control point mode after a

power fail, if the restart from last mode enable configuration item is

answered NO. The restart Mode may be any mode available with the

station type selected. The restart mode for the Direct Control point may

be changed using DDP #28, RST MD.

SP Tracks PV in DDC Mode Enable Ċ Causes the set point to track the

process variable when the Direct Control point is in the DDC mode. YES

enables set point tracking; NO disables it.

Station Type Ċ The station type of a Direct Control point primarily

determines who controls the Direct Control point set point and where the

set point originates. The PCA is defined on the Direct Control Point form,

and is displayed here for reference only.

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Response Electronics CL6011B Especificaciones Pagina 103

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