Reference; Auto-Tune; Changing Your Configuration; Trouble-Shooter - Honeywell UDC2000 Instruction Manual

In the event of a power failure, the furnace will fire
at the Single Set Point that you set before starting the
firing program. See "Single Set Point Firing" to adjust
the Single Set Point.

REFERENCE

Auto-Tune

What is Auto-Tune? This is a test that your controller
runs to fine-tune the firing cycles. Auto-Tune gives your
controller the firing information it needs about your
furnace or kiln to run as efficiently as possible. However,
it is unlikely that you will ever need to
Tune.
1.
Put both SPRAMP and
on DIS. See "Entering Your Firing Schedule into the
Controller" for instructions.
2.
Press S E T UP
ATUNE:SET
appears. Press
FUNC
until the Function Mes­
sage AT ENB appears in the
bottom of the display.
3.
Press an arrow key until
ASTP
reads in the top of the
display.
4.
Press DISP to get back to a
normal idle temperature read­
ing.
5.
Adjust the Single Set Point
to the temperature you usually
fire to. (See "Single Set Point Firing.")
6.
Tum the toggle switch to the ON position to send
power to the elements.
7.
When the furnace reaches the Single Set Point
temperature, press DISP
ATUNE. TUNE
Press will appear in the top of the
display.
You can stop the Auto-Tune by pressing the
key. When the Auto-Tune is finished, the display will
show the normal temperature display again.
If your controller was set up at the factory for your
furnace, you will find a Configuration Record Sheet with
your wiring diagram. At the factory, we set your control­
ler for such things as the correct thermocouple type,
cycle time, etc. If you mistakenly change any of these
settings, they're easy to correct.
Use the SETUP key to enter the Set-Up Mode and
FUNC
the key to enter the Function Message. Change
the settings with the arrow keys.
If the arrow keys have no effect on a setting, bring up
the TUNING Set-Up Mode, and then the
tion Message. Change the
adjustments you need in the other Set-Up Modes, and
LOCK.
then restore the
an Auto­
run
SPPROG firing schedules
u n t i l
Sf T
1
DTII�IC:
, I I '_" \1 ,_
E r.: B
,-, T
, - - ,
I
to view the Single Set Point.
RESET
LOCK Func­
LOCK to none, make the
KEYERR WHEN YOU PRESS RUN/HOLD
Both firing schedule s-the 12-segment
SPPROG and the single-ramp SPRAMP-are
closed (disabled). See "Entering Your Firing
Schedule Into the Controller" for instructions on
how to tum on (enable) a firing program.
FURNACE WONT SHUT OFF
The controller will power the furnace heating
elements until the Single Set Point is reached.
Remember, as long as the controller is plugged
in, it is working. It is never idle. It is always
trying to maintain a certain temperature­
either a temperature in a program or the Single
F
Set Point. See "Single Set Point Firing" to adjust
the set point.
TEMPERATURE READ-OUT FLUCTUATES
Radio-frequency "noise" from gas furnace
blower motors, ultrasonic cleaners, polishing
machines, engravers, etc., can cause wide fluc­
tuations in temperature read-out. You can filter
out this noise as follows:
1.
SETUP
Press
the bottom of the display.
2.
FUNC
Press
bottom of the display.
3.
Use the arrow keys to enter 15.
4.
Press DISP
the temperature read-out still fluctuates, repeat
these steps and enter a higher number. If the
temperature displayed is steady, you may want
to lower the filter number to 14 or 13.
FIRING IS AT WRONG R AMP SPEED
This is in the
that the program was set for the wrong type of
ramp time. You have a choice in
using either total minutes of ramp time or
degrees of rise per minute. You may have
entered minutes of total time when the program
was set for degrees of rise per minute, or vice
versa. See "Entering Your Firing Schedule Into
the Controller."
SPRAMP
In the
one choice: total time in minutes.
REFERENCE
Trouble Shooter
INPUT 1
key until appears in
FILTH 1
until appears in the
to get a normal idle display. If
SPPROG program. It is likely
SPPROG
program, you have only
of
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