LA 404-2 Pattern Controller Manual.pdf - 第70页
LA 404-2 Patt ern Control Sys tem 64 P/N 7 1 19995A 2006 Nordson Corporation LA 4 04- 2 Is sued 12/06 Refer to T rigger . The glue gun stops when the machine stops, and resumes to complete the current gluing cycle when t…
LA 404-2 Pattern Control System
63
P/N 7119995A
2006 Nordson Corporation
LA 404-2
Issued 12/06
A feature of the pattern control that handles pallet-stabilization
applications. Use this feature to set the number of consecutive
products that receive adhesive and the number of consecutive
products that are skipped before pattern generation starts again.
All of the beads produced by a single gun.
Refer to Photosensor.
A device that detects products as they travel along the
production line.
The distance from the start of one bead to the start of the next
bead or, in the case of custom bead types (stitched beads, dot
beads, or modulated beads), the distance from the start of one
sub-bead to the start of the next sub-bead
.
The ability of the pattern control to simultaneously track the
position of several products as they move from the trigger to the
guns. This feature allows the user to install the sensor farther
from the guns, space products closer together, and run the
production line faster.
Refer to Recipe.
Test value for pressure.
Preset run-up value that automatically engages when purging.
The process of removing trapped air or material from the
adhesive gun or nozzle, or of relieving system pressure by
turning the gun (or guns) on.
A custom bead type that the pattern control can generate. The
random-length feature allows the user to apply a continuous
bead of adhesive to products of different length. If desired, set a
gap at the leading and trailing edges of the product where
adhesive will not be applied.
All of the pattern settings and associated parameters for applying
adhesive during a single production run. A program includes the
measurements that define a pattern set and may include
volume-control settings (if the run-up feature is purchased and
installed), optional settings such as the low-line-speed warning,
and custom bead settings such as stitching or modulation.
A feature that allows the user to test-fire the gun connected to
any of the four pattern-control outputs. Using this button and
associated DIP switches, one output or any combination of the
four outputs can be activated.
A pressure variation feature that varies pump output as line
speed changes to provide a consistent bead volume.
The glue gun stops when the machine stops, but will not start
again until the photocell detects a trigger to begin a new gluing
cycle
.
Palletizing
Pattern
Photocell/Photohead
Photosensor
Pitch
Product Queuing
Program
PSI Value
Purge Pressure
Purge
Random-length Bead Type
Recipe
Remote Purge
Run-Up Control
Run Mode
LA 404-2 Pattern Control System
64
P/N 7119995A
2006 Nordson Corporation
LA 404-2
Issued 12/06
Refer to Trigger.
The glue gun stops when the machine stops, and resumes to
complete the current gluing cycle when the machine restarts.
The duration of high voltage or current spike at the initiation of an
electric gun firing.
Refer to Dot Bead Type.
Refer to Dot Pitch.
Refer to Dot Time.
Refer to Modulated Bead Type.
This feature allows the reduction of adhesive usage by entering
the percentage of glue savings. The pattern control
automatically determines the correct length and spacing of the
sub-beads in the bead pattern. Refer also to Sub-Bead.
A bead that results when the pattern control divides a continuous
bead into smaller spaced beads. Sub-beads are used in the
generation of custom bead types (stitched beads, dot beads, and
modulated beads).
The product edge that causes the trigger to stop sensing the
product as the product passes by the trigger. Refer also to
Leading Edge.
A device that receives an analog current signal from the pattern
control and uses it to regulate air pressure. A transducer is used
only in systems equipped for run-up control. Refer also to
Run-Up Control.
A photosensor that detects products as they travel along the
production line. The pattern control can be equipped with one or
two triggers, depending upon the requirements of the DC
application.
Distance that a photosensor passes from the trigger edge to the
other edge of the product. The photosensor is disabled for the
distance entered for the lockout value, thereby preventing
unwanted triggering caused by any holes or contrasting colors on
the product.
A user-determined setting (T-MEM) that allows the user to either
apply or not apply adhesive to products between the trigger and
the guns when line speed recovers after falling below the
minimum-speed setting. If a minimum speed is set, the pattern
control will stop generating patterns whenever the line speed falls
below this speed.
Sensor
Set Mode
Spike Time
Spot Glue/
Spot Mode/Spot Pattern
Spot Pitch
Spot Time
Spotting
Stitched Bead Type
Sub-Bead
Trailing Edge
Transducer
Trigger
Trigger Mask
Trigger Memory Mode
Warnings
A−1
P/N 7119995A
2006 Nordson Corporation
LA 404-2
Issued 12/06
Appendix
A
Warnings
These are messages that are displayed on the menu screen to indicate a
warning condition.
Engine Warnings
The following engine warnings appear on the menu screen.
Screen Message Explanation and Action
Out1 queue overflow
This warning appears if there are more than 4 products between the gun and
its associated trigger. There should never be more than 4 products between
the trigger and the gun. If this occurs, the pattern controller will not generate
pattern on the additional products between the gun and trigger.
To correct this, increase the distance between products or decrease the
distance between the trigger and the gun.
Out2 queue overflow
Out3 queue overflow
Out4 queue overflow
Output 1 forced This is a pattern generation error that is caused by a gun not turning on or off
(or both) soon enough. The bead start point or end point has already passed
when the signal is sent to the gun actuator.
To correct this, decrease the line speed or add more space between the
trigger and the gun, or between the beads.
Output 2 forced
Output 3 forced
Output 4 forced
TRG1 too short This warning appears when the pattern for a channel exceeds the product
length as seen by the assigned trigger.
Verify proper product placement. This is an indication that the pattern would
not fit onto the product as measured by the trigger. It could indicate a jam or
skewed product.
TRG2 too short
TRG3 too short
TRG4 too short
T1 max dist exceeded
This warning indicates that the measured product length is longer than the
user entered maximum product length. Also refer to Jamming.
To correct this, check for a possible jam on the production line.
T2 max dist exceeded
T3 max dist exceeded
T4 max dist exceeded
Trigger queue full The warning indicates that more than 2 products are located between the
trigger and gun.
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