Nordson DuraBlue D4L User Manual

Operation
4-10
Part 1073401_07
E 2021 Nordson Corporation
Monitor Melter Faults
The melter alerts the operator to the faults listed in Table 4‐2. Faults affect
the melter in one of three ways: the heaters turn off; the heaters remain on,
but the fault condition persists; or the melter stops functioning.
When a fault occurs, you must diagnose and correct the fault condition and
then place the melter back into operation. You can use the fault log to
determine the type, order, and relative time of the last ten faults.
Table 4-2 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/applicator
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
parameter22.
Check for conditions
that may cause a drop
in ambient temperature
Raise the setpoint
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
parameter21.
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
Continued...

Nordson DuraBlue D4L Specifications

General

Brand	Nordson
Model	DuraBlue D4L
Category	Industrial Equipment
Language	English