Instruction manual

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(For special order units with the following controller.)
OPERATION OF HONEYWELL UDC-3000 SERIES CONTROLLERS
Entering a Single SetPoint
In order to set a single setpoint, the setpoint program must not be running. This would be indicated
by an H in the upper display, to the left of the process temperature readout. To enter a setpoint, press the
LOWR DISP button until SP is in the lower display. Press the up or down (arrow) buttons until the desired
setpoint reads out in the lower display. The furnace will automatically start going to that setpoint.
Entering a Program
The setpoint program section of the UDC-3000 consists of 12 segments. These segments are divided
into 6 ramps and 6 soaks. Each ramp and soak can be programmed to take up to or last for 99 hours. The
UDC-3000 allows you to select the starting segment and ending segment so that a variety of ‘mini” programs
can be selected. For example, you could tell the instrument to start on segment 1 and end on segment 4.
You must always end on a soak segment which are even numbered segments.
To program the ramps and soaks, press the SET UP key until SP RAMP appears in the lower
display. Then press the FUNC (FUNCtion) key until SP PROG appears in the lower display. When it does,
press either the up or down (arrow) button and enable it. This will appear in the upper display. When set
point programming has been enabled, press the FUNCtion key until SEG 1 RAMP appears in the lower
display. Then press the up or down keys until the desired hours or minutes are displayed in the upper read-
out. Press FUNC again and SEG 2 SP will appear in the lower display. Now choose the temperature that
the first ramp will go to. Then press FUNC again and SEG 2 TIME will appear below. Choose the desired
time for the soak. Continue in this manner until you have programmed all the ramps and soaks desired.
When you are finished, press FUNC until you arrive back at STRT SEG in the lower display. Now you can
choose which segment to start on. Press FUNC again and END SEG will appear. Choose the ending
segment desired. Press FUNC again and select the number of times you wish the program to run. If only
once is required, choose “0' recycles. Press FUNC again and SOAK DEV will appear. Choose the number
of degrees desired for deviation. If a value of 20 degrees is chosen, for example, the soak will be on hold
as long as the process temperature is outside the 20 degree range above or below set point. This is helpful
if too short a ramp time has been chosen. The soak will wait until the process temperature is close to the
set point before it begins. This is called “guaranteed soak’.
You are now ready to run the program. Press the run/hold button and an R will appear to the left of
the process temperature. The lower read-out will display SP and a starting set point. To check your
programming, press the LOWR DISP key and it will read-out first, the deviation from the current set point.
Press it again and the segment number and time remaining will appear. Press it again and the percentage
of power being applied to the elements will read-out. When the ramp set point is ahead of the process
temperature, the power will be fluctuating. Press the display key one more time and the set point will re-
appear.