Nordson ProBlue P10, Customer Product Manual

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Troubleshooting
6-2
Part 1024496_06 2014 Nordson Corporation
Melter Faults
Table 6‐1 lists the four types of melter faults, potential causes, and expected
corrective actions.
Table 6‐1 Melter Faults
Display
Code/Sub‐code
Name Affect on Melter Cause Corrective Action
F1/None RTD Heaters turn off
The RTD for the
component indicated
has failed or the
component was
disconnected from
the melter. Replace RTD
Check hose/gun
connections
See flowchart T.2
F2/None
Under
temperature
Heaters turn off
The actual temperature
of the component
indicated has dropped
below the under
temperature delta,
which was set using
parameter22. Check for conditions
that may cause a drop
in ambient temperature
Raise the set‐point
temperature of the
component
Replace RTD
See flowchart T.2
F3/None Over temperature Heaters turn off
The actual temperature
of the component
indicated has increased
beyond the over
temperature delta,
which was set using
parameter21. Replace RTD
See flowchart T.2
F4/1 RAM test
Melter stops
functioning Internal RAM failure Replace CPU
F4/2
Internal Clock
time
Heaters remain on,
but fault condition
persists Internal clock failure Replace CPU
F4/4
Internal clock
battery backed
RAM Heaters remain on,
but fault condition
persists Battery‐backed RAM
failure Replace CPU
F4/5
Internal clock
battery
Heaters remain on,
but fault condition
persists Battery‐backed RAM
battery dead Replace CPU
F4/6 Analog‐to‐digital
Melter stops
functioning RTD analog‐to‐digital
converter failed Replace main board or
CPU
Continued...