Honeywell UDC 3300 manual Timer Period Start Disp, KEY ALARM2 TI REM Time, None AVG

Lower Display

Prompt

TIMER

PERIOD

START

L DISP

Upper Display

Range of Setting

or Selection

ENABLE

DISABL

0:00 to 99:59

KEY

ALARM2

TI REM

E TIME

Parameter

Definition

TIMER allows you to enable or disable the timer option.

The timer option allows you to configure a timeout period and to select timer start by either the keyboard (RUN/HOLD key) or Alarm 2. A digital input can also be configured to start the timer.

When the timer is enabled, it has exclusive control of the alarm 1 relay; any previous alarm configuration is ignored. At timeout, the timer is ready to be re-activated by whatever action has been configured. Alarm 1 is activated at the end of the timeout period.

PERIOD allows you to configure the length of timeout period (from 0 to 99 hours:59 minutes).

START allows you to select whether the timer starts with the keyboard (Run/Hold key) or Alarm 2.

L DISP allows you to select whether time remaining (TI REM) or elapsed time (E TIME) is displayed for the timer option.

The time is shown on the lower display in HH:MM format along with a rotating “clock” character.

•If the “clock” rotation is clockwise, elapsed time is indicated.

•If the “clock” rotation is counterclockwise, time remaining is indicated.

INPUT MATH ALGORITHMS— The controller is provided with two input algorithms. Each algorithm can be configured to provide a derived (calculated) PV or a derived Remote setpoint. Up to three inputs may be applied to the calculation. In addition, the two algorithms may be “linked” to combine two calculations by configuring one algorithm to be an input to the other algorithm. See Inputs A, B, and C for definitions per equation.

All algorithms operate in engineering units except Feedforward which operates in percent of output units.

ATTENTION For the General Math functions, when Input C is set to NONE, the value of Input C used in the functions is automatically set to 1.0, except for Summer where it is set to 0.0.

INP ALG1

NONE

W AVG*

*Standard feature on DC330E

INPUT ALGORITHM 1 has the following selections from which to choose:

NONE— No algorithm configured

WEIGHTED AVERAGE— When you configure for Weighted Average, the controller will compute a PV or SP for the control algorithm from the following equation:

(Input A x Ratio A + Bias A) + (K x Input B x Ratio B + Bias B)

PV =

(1 + K)

F FWRD*

*Standard feature on DC330E

Both Inputs must have the same range in engineering units.

FEEDFORWARD SUMMER— Feedforward uses Input A, following a Ratio and Bias calculation as a value summed directly with the PID computed output value and sent, as an output value, to the final control element. Applies to Loop 1 only. (NOTE 1)

This algorithm will only function in automatic mode. The following formula applies:

Controller Output = PID Output + (Input A x Ratio A + Bias A ) x (100/Input A Range)

96 UDC 3300 Process Controller Product Manual 4/00