40
•
Remove control panel screws
•
Open lid of control panel. Inside you will see the underside of the circuit board
(pictured above).
•
A variable resistor, shown in the photo, can be turned with a screwdriver. Turn about a
quarter turn clockwise.
•
Replace the lid of the panel. Reconnect to power.
•
Compare the legibility and contrast of the screen to how it was before adjustment. If
the screen has become too dark, disconnect from power and adjust variable resistor a
quarter turn the other direction. Reconnect power and check display again.
•
Repeat the procedure until the desired LCD contrast is achieved and the screen is
legible, making sure to disconnect power each time before opening lid of control
panel.
Control Panel Calibration
Control panels come with a calibration feature that can be used to dial in cut length
accuracy. It is recommended to check the following items before changing calibration factor:
•
Pulleys are not slipping
•
Correct tension is set on feed rollers
•
Material is not slipping
If all of these things have been checked and are in good order, but machine still creates
pieces that are not the correct cut length, adjustments can be made via one of the two
methods below.
Calibration Method 1
•
Turn the power switch to the on position
•
Hold down the
*
key, and continue holding through the start screens until
“
Steps/in
”
appears
•
The default calibration factor for these machines is 4300. That is 43.00 steps per inch
•
If your material is cutting short, increase the number by typing in a value more than
4300. Since there are 43 steps per inch, each increment is very small. For example, 4350
will only yield a small increase over 4300, depending on the overall length of the piece
being cut. There will be some trial and error involved to achieve the correct part length.
Calibration Method 2
•
Turn the machine on. Allow machine to heat up if using a hot cutter.
•
Enter the appropriate values for cut length, cut time, and speed. When the last prompt
asks for
“
How Many
”
, enter the value
“
1
”
, and press enter to start cycle. Entering only
one piece puts the machine in calibration mode.
•
Measure the piece that was cut. The controller is ready to receive input now. If the
piece is too short, press the
“1” key
. If the part is too long, press
“
2
”
.
•
This will change the current calibration factor by .05. For example, from a default setting
of 4300 the new calibration factor will be 4305 if adding to the calibration factor, and
4295 if subtracting from the calibration factor. This is a small increment and may not be
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