Honeywell UDC2300 Product Manual page 132

Function Parameter Reference Guide
12.2.10 AUX OUT
This prompt is part of the Options Set Up Group.
This selection provides an MA output representing one of several control parameters. The
display for auxiliary output viewing will be in engineering units for all but output. Output
will displayed in percent.
Selections
DIS
IN 1
IN 2
PROC
DEV
OUTPUT
SP
LSP1
122
(AUXILIARY OUTPUT)
Definitions
No Auxiliary Output
This represents the configured range of Input 1
For example:
Type J Thermocouple (0 °F to 1600 °F)
0 °F display = 0 % output
1600 °F display = 100 % output
This represents the configured range of Input 2
Process Variable
Deviation (Process Variable minus Setpoint) – Represents –100 % to
+ 100 % of the selected PV span in engineering units.
For Example:
Type T Thermocouple
PV range = -300 °F to +700 °F
PV span = 1000 °F
Deviation Range
If PV = 500 °F
and SP = 650 °F
then Deviation Display = –150 °F
Auxiliary Output = 42.5 %
When Deviation is selected, only one operating parameter will be entered.
This value represents the deviation level that will produce 20 mA (100 %)
output Zero deviation will produce a center scale (12 mA or 50 %) output.
A negative deviation equal in magnitude to the auxiliary output high value
will produce a low end (4 mA or 0 %) output.
OUTPUT – represents the displayed controller output in percent (%).
Cannot be used with 3 Position Step Control.
SETPOINT – represents the value of the setpoint in units of PV.
Local Setpoint One – Auxiliary output represents local setpoint one
regarless of active setpoint.
UDC2300 Controller Product Manual
= –1000 °F to +1000 °F
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