192
Chapter
7
Tro
ubles
hoot
in
g
F3SJ-A
User’s Manual
Appendix
*2 When an error occurred, a supply voltage error may be recorded in addition to the original error
code if supply voltage is out of specification range.
71
Auxiliary output 1
error
The auxiliary output line and 24V,
0V, or other input/output line than
external device monitoring input
line are short-circuited when
diagnosis function of an auxiliary
output 1 is being enabled. Or, an
auxiliary output line is broken.
Perform the proper wiring for
auxiliary output 1.
Load (such as indicator or relay)
connected to an auxiliary output 1
is broken.
Replace the load.
Failure of auxiliary output 1 circuit. Replace the F3SJ.
80
Series connection
cable error (3)
Series connection cable is
broken.
(Test input line of a series
connection cable is broken)
Replace the series connection
cable.
A contact failure due to the loose
connector, the intrusion of liquid
(oil etc.) into the connector, or the
attachment of a foreign material
has occurred.
After cleaning the inside of the
connector (if any foreign material
is attached), tighten the connector
more closely.
Error code
other than
those above
Effect of noise.
Effect of noise is excessive.
If other devices using the same
power supply generate noise, do
not share the same power supply
with other devices and use it as
that exclusive for the safety
component.
The inductive noise tends to be
induced especially if the power
line and the power supply line are
arranged in parallel. Arrange the
exclusive power supply near the
light curtain or lay the power line
away from the power line.
If the power supply for operation
is located near the power supply
and it uses the same ground, it is
subject to the influence of
common mode noise from the
ground. Separate the grounding
point or use it as the exclusive
ground.
Lockout of other
F3SJ in the series
connection
Failure occurred in another F3SJ
under series connection.
Solve the problem of F3SJ in a
series connection.
Failure of F3SJ's
internal circuit.
F3SJ's internal circuit is damaged. Replace the F3SJ.
Emitter Receiver
Error code
Error Description
Cause
Solution
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
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