Troubleshooting
3A2347ZAA 47
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).
Unable to
achieve
25lb/hr melt
rate at the
desired adhe-
sive tempera-
ture.
The InvisiPac system
monitors temperature
within aluminum mass
of melter (202). As melt
rates exceed 20 lb/hr a
system temperature
offset may be required.
1. 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.
2. 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: A 50 amp breaker is required in order to maximize startup and
flow rate performance. Set the breaker size used in the Setup screens.
NOTE: Some materials are more difficult to melt than others, therefore
it may be impossible to process them at a rate of 25 lb/hr. The InvisiPac
system was tested to achieve continuous melt rates of 25lb/hr when
dispensing standard EVA packaging grade adhesives in pellet form
with an InvisiPac system temperature of 375°F and hose and valve
temperatures of 350°F.
Problem Cause Solution
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