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
run
an Auto
Tune.
1.
Put both
SPRAMP
and
SPPROG
firing schedules
on
DIS.
See "Entering Your Firing Schedule into the
Controller" for instructions.
2.
Press
SET UP
until
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
1
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fire to. (See "Single Set Point Firing.")
F
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
to view the Single Set Point.
Press
ATUNE. TUNE
will appear in the top of the
display.
You can stop the Auto-Tune by pressing the
RESET
key. When the Auto-Tune is finished, the display will
show the normal temperature display again.
Your
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
the
FUNC
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
LOCK
Func
tion Message. Change the
LOCK
to none, make the
adjustments you need in the other Set-Up Modes, and
then restore the
LOCK.
REFERENCE
Trouble Shooter
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
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.
Press
SETUP
key until
INPUT 1
appears in
the bottom of the display.
2.
Press
FUNC
until
FILTH
1
appears in the
bottom of the display.
3.
Use the arrow keys to enter 15.
4.
Press
DISP
to get a normal idle display. If
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 RAMP SPEED
This is in the
SPPROG
program. It is likely
that the program was set for the wrong type of
ramp time. You have a choice in
SPPROG
of
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."
In the
SPRAMP
program, you have only
one choice: total time in minutes.
10
