Operating instructions

5-2 Troubleshooting
4. Guns Not Firing
Problem
PC40
status LED red.
(NOTE:
It is normal for
this LED to light red at
unit power-up. After a
brief
self-test, it will
light
green.)
PC40 status LED dark .
PC40 output LED(s)
lighting.
PiN 108 389A
57 ·2 8 1/93
Possible Reason
Selecting an unconfigured
memory via remote memory
select line.
PC 40 has fa iled internal
diagnostics check.
Power switch in OFF position.
Defective fuse.
No input power to PC40.
Incorrect
or missing wi re
connections in PC40.
PC40
failure.
No applicator powe
r.
Insufficient system pressure.
Incorrect or missing wi re
connections in PC40.
Gun and/or solenoid problem.
Corrective Action
Select configured memory or
make unconfigured memory
available.
Replace
unit; contact your
Nordson representative.
Move switch to
ON postion.
Check;
replace if necessary.
Turn power
ON
Turn power to PC40 OFF;
remove front assembly and check
connections.
Replace; contact Nordson
representative.
Check that applicator breaker
switch
ON; check for input line
voltage
if necessary.
Check for proper pressure and
adjust if necessary.
Select Test mode (press and hold
Nordson oval until arrow on LCD
points to "TESr ; press LEFT or
RIGHT to select channel; press
SET and check for 240 VAC or at
solenoids; if no power present,
turn PC40 power OFF, remove
front
assembly, and check output
connections.
Follow troubleshooting procedure
in gun and/
or solenoid manual.
Refer to
Sec. 4,
w conf igure
Mode".
Figure 5.1.
Applicator
manua l.
Applicator
manual.
Figure 5.1
Gun and/ or
solenoid
manual.
C Nord son Corpo r atoo n 1993
All Roghts Rese rved