Operating instructions

4. Guns Not Firing {continued)
Problem
PC40
trigger input
LED(s) dark.
PC40 output LED(s)
dark.
C NordSon Corporation 1 993
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Possible Reason
Sensors not mounted within
operating range.
Sensor misaligned.
Dirty sensor
lenses and/or
retroreflector.
Damaged sensor wires.
Incorrect or missing wire
connections.
Sensor
failure.
PC40 failure.
Sensor or sensor wiring problem.
Wrong memory selected.
Channel not configured.
Channel not activated.
PC40 failure.
Troubleshooting 5-3
Corrective Action
Mount within proper range.
Check;
align if necessary.
Clean lenses and/or retroreflector.
Inspect and replace or repair as
necessary.
Turn power to
PC40 OFF;
remove front assembly and check
connections.
Replace; contact your Nordson
representative.
Replace; contact your Nordson
representative.
Check if PC40 input LEOs also
dark; if so,
go to "PC40 trigger
input LEOs dark,"
earlier in this
section.
Select the correct memory.
Configure channel.
Activate channel.
Replace; contact your Nordson
representative.
Refer to
Figure
5.1
Sec. 4,
"Programming
Memory."
Sec. 4,
"Selecting
Available
Parameters:
Sec. 4,
"Programming
Channel."
PIN 1 08 389A
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