Honeywell UDC2300 User Manual

Setpoint Rate/Ramp/Program Operation
12/00 UDC2300 Controller Product Manual 73
Operation
Running a Setpoint Ramp includes starting, holding, viewing the ramp, ending the ramp
and disabling it. See Table 7-1.
Table 7-1 Running A Setpoint Ramp
Step Operation Press Result
1
Select Automatic
Mode
MAN/AUTO
“A” indicator is on.
Upper Display = Hold and PV value
Lower Display = SP and Present value
2
Set Start Setpoint
DISPLAY
Until start SP value is in lower display
Upper Display = Hold and PV value
Lower Display = SP and start SP value
3
Start the Ramp
RUN/HOLD
You will see
Upper Display = Run and a changing PV value
Lower Display = SP and a changing SP value increasing
or decreasing toward a final SP value
4
Hold/Run the
Ramp
RUN/HOLD
This holds the ramp at the current setpoint value. Press
again to continue.
5
View the
remaining ramp
time
Until you see
Upper Display = RUN or HOLD and the PV value
Lower Display = RP xx HH.MM (time remaining)
6
End the Ramp
DISPLAY
When the final setpoint is reached, “RUN” changes to
“HOLD” in the upper display and the controller operates at
the new final setpoint.
7
Disable SPRAMP
See Section 4 – Configuration group “SPRAMP” for
details.
Power Outage
If power is lost during a ramp, upon power-up the controller will be in HOLD and the
setpoint value will be the setpoint value prior to the beginning of the setpoint ramp.
The ramp is placed in hold at the beginning.
Configure the mode at Set Up Group “CONTROL”, function prompt “PWRUP”. See
Subsection 4.11 – CONTRL GROUP FUNCTION Prompts.

Honeywell UDC2300 Specifications

General

Brand	Honeywell
Model	UDC2300
Category	Controller
Language	English