background image

 

While it is possible for the counter to become unlocked 
(possibly due to line noise, electrical storms, etc.), it is 
important to note that this will disable the counter from 
performing as it should. In order to correct the 
situation, the counter will need to be re-programmed.  

For your convenience, we have provided re-
programming instructions located in the final section of 
this manual in the event that this occurs 

DETERMINING PRESET B (STOP POINT) 

The counter registers one count per ten inches of web 
travel when using the standard ten-inch circumference 
counter drive roll. This makes it easy to calculate the 
appropriate number to enter into the counter in order 
to wind a roll of a given number of labels. The number is 
calculated as follows: 

𝐂𝐨𝐮𝐧𝐭 =

(𝑵𝒐. 𝒐𝒇 𝒅𝒆𝒔𝒊𝒓𝒆𝒅 𝒍𝒂𝒃𝒆𝒍𝒔)(𝒓𝒆𝒑𝒆𝒂𝒕 𝒍𝒆𝒏𝒈𝒕𝒉) 

𝟏𝟎

 

 

EXAMPLE: To wind a roll of 1000 labels of 3 inch repeat 
length, the number 300 would be entered as the final 
count (Preset B). 

𝐂𝐨𝐮𝐧𝐭 =

(𝟏𝟎𝟎𝟎)(𝟑)

𝟏𝟎

= 𝟑𝟎𝟎

 

Figure 2  Counter Package 

DETERMINING PRESET A (DECELERATION COUNT 
SETTING) 

The point at which deceleration should begin depends 
on many factors (rewind speed, finished roll diameter, 
etc.). Therefore you probably will need to test your de-
celeration count setting each time you rewind a new 
type of label. The desired technique is to have the ma-
chine stop shortly after it decelerates fully and has sta-
bilized at the lower speed. For the first attempt try a 
setting that is fifty counts less than the final count. This 

means that the counter will begin to decelerate the 
machine 50 counts before the end of the roll. 

EXAMPLE:  If the final count (Preset B) is 300, then the 
deceleration count (Preset A) should be set at 250. 

AUTOMATIC RESET 

After winding a roll (and reaching the final preset num-
ber), the counter will reset to zero automatically when 
the start pushbutton is pressed to start a new roll. This 
is the only time automatic resetting can occur. Counting 
will proceed normally each time the machine is stopped 
and started (without resetting) until Preset B has been 
reached. You may reset the counter to zero at any time 
by pushing the “RST” button on the counter. 

ELECTRICAL CONTROL 
ADJUSTMENTS 

The following list of settings has been pre-adjusted by 
Web Techniques, Inc. to cover most applications. If 
these settings are not optimal for your requirements, 
adjustments may be made with discretion. These set-
tings are located on the printed circuit board closest to 
the terminal blocks on the motor control. The motor 
control is located inside the control cabinet. 

MINIMUM SPEED 

If a higher than zero minimum speed is desired, readjust 
the minimum speed by turning the main speed control 
knob on the front of the machine to zero setting (full 
counterclockwise position). Then adjust the trim poten-
tiometer marked MIN to the desired setting. 

DECELERATION RATE 

If your labels become loose during the deceleration 
period with the web tension set at the necessary level, 
you should increase the deceleration rate by turning the 
trim potentiometer marked DECEL clockwise. If you feel 
that the deceleration period is too long, turn the decel-
eration trim potentiometer counterclockwise to reduce 
the deceleration rate. 

ACCELERATION RATE 

Turning the trim potentiometer marked ACCEL clock-
wise increases the amount of time required for the mo-
tor to reach full speed. The setting should be such that 
the web does not break when the motor is started. 

Содержание WT-25 Series

Страница 1: ...07 1002 Owner s Manual and Guide to Operations MODEL WT 25 ROLL LABEL REWIND MACHINES 910 Bolger Court Fenton MO 63026 USA 636 343 0806 800 325 9777 IMPORTANT Read all instructions before using...

Страница 2: ...Air Inflatable Coreholders Optional 3 Rewinding 3 Web Path Illustration 4 Straightening 4 Counting System 4 Programming Deceleration and Stop Points 4 Determining Preset B Stop Point 5 Determining Pre...

Страница 3: ...eneral these are paper film or foil prod ucts which are stiff enough to stand on edge vertically throughout the web path of the machine Cloth and other woven materials generally do not rewind well if...

Страница 4: ...ders are available as an option In addition some machines are configured with a combination of both systems usually a lift off cam lock coreholder on the unwind and an air inflatable coreholder on the...

Страница 5: ...riven Machines that have been equipped with air inflatable coreholders require connection to a supply of air pres sure A quick disconnect fitting has been provided for this purpose located on the back...

Страница 6: ...e 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...

Страница 7: ...nt Preset A should be set at 250 AUTOMATIC RESET After winding a roll and reaching the final preset num ber the counter will reset to zero automatically when the start pushbutton is pressed to start a...

Страница 8: ...TER 5 If necessary press PRGM until A nEtb appears 6 Press ENTER 7 If necessary press PRGM until ASub b appears 8 Press ENTER 9 If necessary press PRGM until Hi CPS appears 10 Press ENTER SETTING THE...

Отзывы: