Lower Display

Prompt

MAN OUT

AUTO OUT

PBorGAIN*

Upper Display

Range of Setting

or Selection

0 to 100 %

0 to 100 %

PB PCT

GAIN

Parameter

Definition

POWER-UP PRESET MANUAL OUTPUT— At power-up, the controller will go to manual and the output to the value set here. (NOTE 1)

POWER-UP PRESET AUTOMATIC OUTPUT— At power- up, the controller will begin its automatic control at the output value set here. (NOTE 1)

PROPORTIONAL BAND UNITS— Select one of the following for the Proportional (P) term of the PID algorithm:

PROPORTIONAL BAND selects units of percent proportional band for the P term of the PID algorithm.

Where:PB % = 100 % FS GAIN

GAIN selects the unitless term of gain for the P term of the PID algorithm.

Where:GAIN = 100 % FS PB%

MINorRPM*

RPM

MIN

RESET UNITS— Selects units of minutes per repeat or repeats per minute for the I term of the PID algorithm.

20 Repeats per Minute = 0.05 Minutes per Repeat.

REPEATS PER MINUTE— The number of times per minute that the proportional action is repeated by reset.

MINUTES PER REPEAT— The time between each repeat of the proportional action by reset.

*Selection here is used for both Loop 1 and Loop 2 if available. Also applies to Gain Scheduling on Loops 1 and 2.

NOTE 1: Does not apply to Three Position Step Control.

NOTE 2: If controller is in Manual upon failure, output will maintain its value at time of failure.

NOTE 3:These selections appear when:

1.Control Algorithm is selected for 3PSTEP.

2.Control Algorithm is selected for PD+MR and Output Algorithm is selected for Position Proportional.

4/00

UDC 3300 Process Controller Product Manual

123

Page 135
Image 135
Honeywell UDC 3300 manual PBorGAIN, PB PCT Gain, Rpm Min