Configuration
82 UDC3500 Universal Digital Controller Product Manual 3/07
Function Prompt
Lower Display
Selections or
Range of Setting
Upper Display
Parameter
Definition
LWR DISP
TI REM
EL TIME
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
KEY
ALARM 1
TIMER RESET CONTROL—Select how the timer is
reset.
KEY - Timer reset with the
Run/Hold key.
ALARM 1 - Timer reset with either Alarm 1 or by the
Run/Hold key
INCRMENT
MINUTE
SECOND
INCREMENT—Select the increments of the Period
configuration.
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
INPUT ALGORITHM 1—Represents one of the
following selections:
NONE
NONE—No algorithm configured
W AVG
(See Note 2)
(Standard feature on
controllers with two or
more analog inputs)
WEIGHTED AVERAGE—When you configure for
Weighted Average, the controller will compute a PV
or SP for the control algorithm from the following
equation:
Alg1 = [(Input A x Ratio A + Bias A) + (K x Input B x Ratio B + Bias B)] / (1 + K)] +
Alg1Bias
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