Honeywell UDC3200 Product Manual page 65

Function Prompt
Lower Display
START
LOW DISP
INPUT MATH ALGORITHMS—Controllers with two inputs are provided with one input algorithm. Unless
otherwise noted, these selections are provided only as part of the Math Options package. 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. See Inputs A, B, and C for definitions per equation.
All algorithms operate in engineering units except Feedforward (F FWRD) which operates in percent of
output units.
ATTENTION When the Input C configuration is set to NONE, the value of Input C used in the functions
is automatically set to 1.0, except for the Summer algorithm, where it is set to 0.0.
INP ALG1
12/04
Selections or
Range of Setting
Upper Display
KEY
ALARM 2
TI REM
E TIME
NONE
W AVG
(See Note 2)
(Standard feature on
controllers with two
analog inputs)
Alg1 = [(Input A x Ratio A + Bias A) + (K x Input B x Ratio B + Bias B)] / (1 + K)] +
F FWRD
(Standard feature on
controllers with two
analog inputs)
Controller Output = PID Output + (Input A x Ratio A + Bias A ) x (100 / Input A
UDC3200 Universal Digital Controller Product Manual
Parameter
Definition
START allows you to select whether the timer starts
with the keyboard (Run/Hold key) or Alarm 2.
LOW 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 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:
Alg1Bias
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.
This algorithm will only function in automatic mode
and is not used for Three Position Step Control
applications.
The following formula applies:
Range)
Configuration
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