Melter Faults - Nordson DuraBlue D4L Manual De Instrucciones

Troubleshooting
6-2

Melter Faults

Fault
Fault Name
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
Part 1032059B
Table 6-1 lists the four types of melter faults, potential causes, and expected
corrective actions.
Table 6-2 Faults
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
Communication failure between main board
and CPU
Thermostat is open
Manual 41-DURABLUE-MA-02
Corrective Action
Replace RTD
Check hose/gun connections
See flowchart T.2
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
Replace RTD
See flowchart T.2
Replace CPU
Replace CPU
Replace CPU
Replace CPU
Replace main board or ribbon
cable
Replace main board or ribbon
cable
Replace main board, ribbon cable,
or CPU
Replace thermostat, XP6 harness,
or main board
E 2003 Nordson Corporation