Troubleshooting
6-6
Part 1120277_01
E 2012 Nordson Corporation
Motor/Piston Control Faults (contd)
Table 6-2 Motor/Pistol Control Faults and Troubleshooting
(contd)
Fault Affect on Melter Possible Cause Corrective Action
N/A Motor control not operating
as expected
Improper motor control
parameter s ettings
Check motor control
parameter settings. Refer t o
Setting Up the Motor Control
in Section 3, Installation.
N/A Piston stuck in down position Excessive downward air
pressure [greater than 2 bar
(30 psi)] on a slug or foil bag
torn or damaged
Press the Piston up key,
increase the piston air
pressure to the maximum,
and wait 5 minutes. If after 5
minutes the piston has not
lifted, increase the melter
temperature t o the maximum
safe limit recommended by
the material supplier. Allow
the temperature to stabilize
for 30 minutes (with the
maximum air pressure still
applied).
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