Honeywell UDC3500 Product Manual page 85

Function Prompt
Lower Display
LWR DISP
RESET
INCRMENT
INPUT MATH ALGORITHMS—Controllers with at least two analog inputs are 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 used in each algorithm. In addition, the two algorithms may be
"linked" so as to combine the calculations by configuring one algorithm to be an input to the other
algorithm.
All algorithms operate in Engineering Units except Feedforward, which operates in percent of range 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
10/05
Selections or
Range of Setting
Upper Display
TI REM
EL TIME
KEY
ALARM 1
MINUTE
SECOND
NONE
W AVG
(See Note 2)
(Standard feature on
controllers with two or
more analog inputs)
Alg1 = [(Input A x Ratio A + Bias A) + (K x Input B x Ratio B + Bias B)] / (1 + K)] +
UDC3500 Universal Digital Controller Product Manual
Parameter
Definition
LOWER DISPLAY—Select whether time remaining
(TI REM) or elapsed time (EL 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.
RESET TIMER—Select whether the timer is reset
with the keyboard (via the
Alarm 1.
INCREMENT—Select the increments of the Period
configuration.
INPUT ALGORITHM 1—Represents one of the
following selections:
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
Configuration
Run Run Run
Hold Hold Hold
key) or via
71