Nordson PURBlue 4 - Page 91

Operation
4-15
Part 1120277_01
E 2012 Nordson Corporation
Table 4-1 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 R AM
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)
Replacehoseorgun.
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/A Thermostat
Melter stops
functioning
Reservoirormeltplate
thermostat is open
Replace thermostat,
XP6 harness, or main
board
F4/C
Expansion board
connection
Melter stops
functioning
Ribbon cable
P/N 1026662 is 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
Alertoutput(ifoutput
option 6 is selected)
Melter continues to
operate normally.
Fieldbus card failure
Replace the Fieldbus
card
Continued...