User's Manual

Troubleshooting
3A2347T 43
The system
will not dis-
pense mate-
rial.
System is not up to
temperature.
Verify that the system is active.
Incorrect temperature
set points entered into
ADM.
Verify the temperature settings are correct.
Air motor is not receiv-
ing compressed air or
air pressure too low.
Verify that the pump air pressure is set above 20 psi. Check the Pump
Air Solenoid Operation, page 49.
Feed pump not feed-
ing adhesive.
Repair or replace air control assembly as necessary.
Repair or replace pump assembly as necessary.
Control for manifold
and guns not working.
InvisiPac system does not control the timing of the manifold and
valves. This is a separate control that needs to be adjusted. Consult
control manufacturer or qualified electrician.
Cycle Switch
Error
Cycle switch or cycle
switch wiring failure.
Check the wiring between the air motor cycle switch and J16.
Repair/replace as required.
Loose or missing fas-
tener (26).
Ensure fastener (26) is tight. See InvisiPac Systems section begin-
ning on page 76 for part identification.
USB Log Full The InvisiPac system
will display this notifica-
tion when the USB data
logs reach 90% full.
To prevent data loss download system data. See Appendix B - USB
Downloading, Uploading on page 110.
The InvisiPac
system is dis-
playing pump
runaway or
pump diving.
This error generally
occurs when the pump
cavitates due to
improper material load-
ing.
This can occur if the melt rate for the system is exceeded, resulting in
air entrapment within the incoming adhesive material and lower than
desired material temperature.
1. Verify that the InvisiPac system is not exceeding 33 cpm by
enabling the diagnostic screen.
2. If the cycle rate is below 33 cpm and the system is still running
away increase the InvisiPac system temperature by 10°F over the
current set point, leave hoses and guns at desired set point.
3. If the pump continues to runaway or dive continue increasing tem-
perature by 10°F, do not exceed maximum temperature for the
material being dispensed.
NOTE: Some materials are more difficult to melt than others and it may
be impossible to process them at a rate of 25 lb/hr. The InvisiPac sys-
tem was tested to achieve continuous melt rates of 25lb/hr when dis-
pensing standard EVA packaging grade adhesives in pellet form with
an InvisiPac system temperature of 375°F and hose and valve tem-
peratures of 350°F.
Level sensor blocked,
reading level incorrect.
Clean feed cap by fill sensor, make sure there are no adhesive pellets
blocking the sensor hole.
The system is not sup-
plying enough air to the
ultrasonic sensor ven-
turi.
Make sure the air supplied to the system is at least 80 psi (550 kPa, 5.5
bar).
Problem Cause Solution