Nordson AltaBlueA4TP - Page 89

Operation
4-15
Part 1107600_03
 2014 Nordson Corporation
Table 4‐2 Melter Faults (contd)
Display
Code/Sub‐code
Name Affect on Melter Cause Corrective Action
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
F4/7
Analog‐to‐digital
calibration
Melter stops
functioning
Failed hose or gun
RTD analog‐to‐digital
converter could not be
calibrated (grounded
RTD in system)
Replace hose or gun.
Note: Set setpoint to
zero to avoid F1 fault.
Replace main board or
ribbon cable, or CPU
F4/8
Main board
feedback
Melter stops
functioning
Communication failure
between main board
and CPU
Replace main board,
ribbon cable, or CPU
F4/9 (not used)
Expansion board
feedback
Melter stops
functioning
Communication failure
between expansion
board and main board
Check the ribbon cable
connections between
the expansion board
and the main board.
F4/A Thermostat
Melter stops
functioning
Tank or manifold
thermostat is open
Replace thermostat, J7
harness, or main board
F4/b Not used — — —
F4/C (not used)
Expansion board
connection
Melter stops
functioning
Ribbon cable not
connected at J1 on the
main board and/or at J2
on the expansion board
Check the ribbon cable
connections and make
connections as
applicable.
F4/d
Communications
with optional I/O
card
Heaters remain on,
but fault condition
persists
Communication failure
between CPU and the
optional I/O card
Replace the I/O card or
CPU
F4/E
Fieldbus
communications
failure
Alert output (if output
option 6 is selected)
Melter continues to
operate normally.
Fieldbus card failure.
Replace the Fieldbus
card
F5
Mismatched gun
RTD
Heaters turn off
The gun RTD type
selected in one or more
of parameters 92-97
does not match the RTD
type of the
corresponding gun
Change parameters
92-97 to match the
connected guns.