Melter Faults - Nordson ProBlue P4 Customer Product Manual

4-12
Operation
Monitor Melter Faults
Display
Code/Sub‐code
F1/None RTD
F2/None Under temperature
F3/None Over temperature
F4/1 RAM test
F4/2 Internal Clock time
Internal clock battery
F4/4
backed RAM
F4/5 Internal clock battery
F4/6 Analog‐to‐digital
Analog‐to‐digital
F4/7
calibration
F4/8 Main board feedback
F4/A Thermostat
Communications
F4/d
with optional I/O card
Fieldbus
communications
F4/E
failure
Part 1024496_06
(contd)
Table 4‐3 Melter Faults
Name Affect on Melter
Heaters turn off
Heaters turn off
Heaters turn off
Melter stops
functioning
Heaters remain on,
but fault condition
persists
Heaters remain on,
but fault condition
persists
Heaters remain on,
but fault condition
persists
Melter stops
functioning
Melter stops
functioning
Melter stops
functioning
Melter stops
functioning
Heaters remain on,
but fault condition
persists
Alert output (if output
option 6 is selected)
Melter continues to
operate normally.
Cause
The RTD for the component indicated has
failed or the component was disconnected
from the melter.
The actual temperature of the component
indicated has dropped below the under
temperature delta, which was set using
parameter 22.
The actual temperature of the component
indicated has increased beyond the over
temperature delta, which was set using
parameter 21.
Internal RAM failure
Internal clock failure
Battery‐backed RAM failure
Battery‐backed RAM battery dead
RTD analog‐to‐digital converter failed
RTD analog‐to‐digital converter could not be
calibrated
Faulty hose or gun.
Communication failure between main board
and CPU
Tank or manifold thermostat is open
Communication failure between CPU and the
optional I/O card
Fieldbus card failure.
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