4
B) Turn the main power ON/OFF switch to the “ON”
position.
C) Install a roll of labels on the unwind. Pull the free
end of the material off the roll until the coreholder
locks. Thread the material as shown in Figure 1.
D) Install a fresh core on the rewind and fasten the
free end of the web to the core with tape.
E) Check the position of the following switches:
SWITCH
POSITION
STOP/BYPASS PRESET
BYPASS
REWIND DIRECTION SWITCH
AS REQUIRED
MAIN SPEED CONTROL
MINIMUM
IDLE SPEED CONTROL
MID RANGE
WEB PATH ILLUSTRATION
Figure 1 Web Path for WT-25
F) Press the START button. Gradually increase the
speed setting until the web begins moving.
G) With the machine running slowly, push against the
face of the web between the last idler roll and the
rewind to determine the web tension. Adjust the
unwind brake tension as necessary to produce the
desired rewind tension.
H) Continue to increase the speed setting until the
machine is running full speed. Then try reducing the
speed. If the web begins to go slack and form a loop
on the top of the machine, the unwind tension is set
too low. Increase the tension to a point where the
web remains stable during acceleration and decel-
eration cycles.
I) Press the STOP button to stop the machine.
STRAIGHTENING
If the rewound roll is not straight due to splices or any
other cause, it may be straightened easily as follows:
A) Place the REWIND DIRECTION switch in the oppo-
site position.
B) Grasp the outer wrap of material on the rewind and
start the machine running very slowly.
C) Allow the roll to expand as it turns in the reverse
direction.
D) Once the roll is loosened all the way to the defect,
stop the motor.
E) Reverse the DIRECTION SWITCH and re-tighten the
roll.
COUNTING SYSTEM
The rewind machine incorporates a bi-directional dual
preset counter. This permits the operator to set sepa-
rate deceleration (Preset A) and stop (Preset B) points.
The counter is driven by means of two magnetically
operated reed switches located in the table top beneath
the counter drive roll. A magnet in the lower end of the
counter drive roll operates the reed switches. The
combined signals from each reed switch allow the
counter to automatically count up or down depending
on the direction of rotation of the counter drive roll.
This is primarily used when pulling defective material
backwards off the rewind roll. Be sure the web is held
against the counter drive roll when it is pulled
backwards.
PROGRAMMING DECELERATION AND STOP
POINTS
To set the final count, press the PRE B button on the
counter once. In approximately two seconds the current
value will be displayed. To change the value, simply
press the button under the digit that you wish to
change. Each time the button is pressed, the digit will
increment by one. When the desired value has been set,
push ENTER once to store the value into memory. To set
the count at which you wish the machine to go into the
deceleration mode, push PRE A and follow the same
procedure as described above. If you do not wish to
have a deceleration period, simply set the final count
Preset B as normal and set Preset A to any number
larger than Preset B.
NOTE
All Rewind Machines are equipped with an electronic
programmable counter. This counter is quite sophisti-
cated and is capable of performing certain functions not
applicable to our usage. While programming the coun-
ter, you will notice “LoC” will appear. This is to let you
know the manufacturer has programmed the counter to
deny access to the functions not required for our
application.
