Response Electronics CL6011B Dokumentacja Pobierz pdf (Strona 99)

4Ć17DCP Configuration

Original Ć June 1990 CE4.2:CL6211

SP Velocity Limit Enable Ċ When this configuration item is answered

YES, the internal SP value used by the Direct Control Point is limited by

a rate of change value, specified by SP Velocity Limit.

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

determines who controls the set point and where the set point originates.

The station type is defined on the Direct Control Point form, and is

displayed here for reference only.

Transfer Bias Ramp Enable Ċ When this configuration item is

answered YES, a Transfer Ramping Bias is enabled for BIAS AND GAIN

Direct Control points. When the Direct Control point mode changes from

Manual to Automatic, the output will ramp from its manually set value to

its new, automatically calculated value over the period of time specified

by the Transfer Ramp Time.

Transfer Ramp Time Ċ This configuration item is used only if the

transfer ramp enable configuration item was answered YES. It specifies

the amount of time, in minutes, for IVP to ramp from its manual mode

value to the automatically calculated value. The valid transfer ramp time

range is 0.0 to 134.23 minutes, and may be changed using DDP #7,

RAMP TIM.

4.3.3 Adaptive/Notch Gain Parameters

The Adaptive/Notch Gain Parameters form is valid for PCA types

Adaptive Gain PI/PID and Notch Gain PI/PID only.

DEV Tuning Enable Ċ This configuration item activates the Adaptive

Gain action which modifies the proportional gain of the loop based on

the current deviation of PV from SP. YES enables DEV adaptive gain

action, NO disables this action. The details of deviation adaptive gain

are outlined in section 3.3.1.8 beginning on page 3Ć12.

DEV Lower Break point Ċ The DEV lower break point specifies the

point at which the current deviation of the loop will begin to affect the

loop proportional gain, to the extent specified by the DEV lower gain

factor. DEV lower break point is expressed in engineering units and must

be between -136.0 and 136.0 percent of the engineering unit span. The

limit may be changed by tuning DDP #40, DEV LOBP.

DEV Lower Gain Factor Ċ The DEV lower gain factor specifies the gain

ratio multiplier which is applied when the current deviation of the loop is

ten percent beyond the lower break point. DEV lower gain factor is

expressed as a ratio, and must be between 0.02 and 50.0; this parameter

is unit-less. The limit may be changed by tuning DDP #42, DEV LOGF.

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Response Electronics CL6011B Dokumentacja Strona 99