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46 UDC3200 Universal Digital Controller Operator Manual 04/08
Function Prompt
Lower Display
Selections or
Range of Setting
Upper Display
Parameter
Definition
IN2 HIGH
–999. To 9999. Floating
(in engineering units)
INPUT 2 HIGH RANGE VALUE in engineering units
is displayed for all inputs but can only be configured
for linear or square root transmitter characterization
See the example in IN1 HI.
IN2 LOW
–999. To 9999. Floating
(in engineering units)
INPUT 2 LOW RANGE VALUE in engineering units
is displayed for all inputs but can only be configured
for linear or square root transmitter characterization.
See the example in IN1 HI
RATIO 2
–20.00 to 20.00
Floats to 3 decimal places
RATIO ON INPUT 2—Select the Ratio value you
want on Input 1.
BIAS IN2
–999. to 9999.
(in engineering units)
BIAS ON INPUT 2 — Bias is used to compensate
the input for drift of an input value due to
deterioration of a sensor, or some other cause.
Select the bias value you want on Input 1.
FILTER 2
0 to 120 seconds
No filter = 0
FILTER FOR INPUT 2—A software digital filter is
provided for Input 1 to smooth the input signal. You
can configure the first order lag time constant from 1
to 120 seconds. If you do not want filtering, enter 0.
BURNOUT
BURNOUT PROTECTION (SENSOR BREAK)
provides most input types with upscale or downscale
protection if the input fails.
NONE
NO BURNOUT—If Input 2 is being used in the
Control Algorithm (such as the PV or RSP input
parameter), then the pre-configured Failsafe output
(selected in the CONTROL Set up Group) is applied
when a failed input is detected (does not apply for an
input out of range). Diagnostic message IN2 FAIL is
intermittently flashed on the lower display.
UP
UPSCALE BURNOUT will force the Input 2 signal to
the full scale value when the sensor fails. Diagnostic
message IN2 FAIL intermittently flashed on the lower
display.
The controller remains in Automatic control mode
and adjusts the controller output signal in response
to the full scale Input 2 signal developed by the
Burnout circuitry.
DOWN
DOWNSCALE BURNOUT will force the Input 2
signal to the lower range value when the sensor
fails. Diagnostic message IN2 FAIL intermittently
flashed on the lower display.
The controller remains in Automatic control mode
and adjusts the controller output signal in response
to the lower range Input 2 signal developed by the
Burnout circuitry.