Operating instructions

5-4 Troubleshooting
5. Gun(s) Firing Between
Patterns
Problem
Gun(s) firing between
patterns,
diffuse
reflective sensors.
Guns firing between
patterns,
opposed
and retroreflective
sensors.
P~ 108389A
57·28 1/93
Possible Reason
Sensor mode set incorrectly.
PC40 sensor mode, location, and
edge symbol parameters set
incorrectly.
Sensors not mounted within
operating range.
Dirty lenses and/or retroreflector.
Sensor responding to objects in
line background, such as cams,
levers, etc.
Inductive interference (electrical
noise) from power or solenoid
cables.
Sensor mode set incorrectly.
PC40 sensor mode, location, and
edge symbol parameters set
incorrectly.
Sensors not mounted within
operating range.
Dirty sensor lenses and/or
retroreflector.
Emitter and receiver/reflector
misaligned.
Corrective Action
Adjust light/dark operate switch
to
intended mode.
Correct settings in Program mode.
Mount within proper range.
Clean lenses and/or retroreflector.
Observe sensor LED to see
if
sensor responding to background
objects; if so, adjust gain setting
and/or follow alignment tips.
Route sensor cab:es away from
power and output wiring.
Adjust light/dark operate switch to
intended mode.
Correct settings in Program mode.
Mount within proper range.
Clean lenses and/or retroreflector.
Align sensor components.
Refer
to
Sec. 4, Table
4.1 .
Sec. 4,
"Programming
Trigger."
Sec. 7.
Sec. 3,
"Aligning
Sensors" and
"Tips for
Minimizing
Unwanted
Triggering.ft
Sec.
4, Table
4.1.
Sec.
4,
"Programming
Trigger."
Sec. 7.
Sec. 3,
"Aligning
Sensors."
0 No<d son Corpor a l oo n 1 993
Al l Rogllts Re sel'oled