188
Chapter
7
Tro
ubles
hoot
in
g
F3SJ-A
User’s Manual
Appendix
A power cable or series
connection cable connector is
detached. If not, 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.
Check connectors of power cable
and series-connection cables.
After cleaning the inside of the
cap (if any foreign material is
attached), tighten the cap more
closely. Replace the cap if any
liquid such as oil has intruded.
Temporary power supply voltage
reduction in motion.
Check for temporary power
supply voltage reduction (by about
12VDC) by the influence of the
induction load etc. If the exclusive
power supply is not used, check
the power consumption of other
connected devices for enough
capacity.
Connection positions are reversed
for emitter(s) and receiver(s)
under series connection.
Correct connection positions of all
F3SJ's emitters and receivers.
Failure of F3SJ's internal circuit.
Replace the F3SJ.
The setting tool is connected to
series connection that includes
F3SJ of version 1.
The setting tool cannot be used if
the connection includes F3SJ of
version 1. Do not connect F3SJ of
version 1.
38
Lockout of other
sensor than the
primary receiver
(error mode
indicator will not
turn on)
A sensor other than the primary
receiver is in lockout when series-
connected.
Solve the problem of an emitter or
F3SJ in a series connection.
3A
Excessive number
of beams
Total number of beams of F3SJs
under series connection exceeds
400.
Rearrange series connection so
that total number of beams of
series connection should not
exceed 400.
3B
Excessive number
of connected
sensors
Five or more sensors are
connected.
Number of F3SJs under series
connection must be 4 or less.
3C
Model error
(between series
connection)
Models of the primary sensor and
secondary sensor are unavailable
for connection. (Primary: PNP
Output, Secondary: NPN Output,
etc.)
Connect them properly.
3D
Model error
(between emitter/
receiver)
Models are different between an
emitter and a receiver (lengths,
output types, or beam gaps are
different)
3E
Sensor count
error (no emitter)
Number of emitters under series
connection is less than that of
receivers (emitters: 3, receivers:
4, etc.)
3F
Sensor count
error (no receiver)
Number of receivers under series
connection is less than that of
receivers (emitters: 4, receivers:
3, etc.)
Emitter Receiver
Error code
Error Description
Cause
Solution
A
B
C
A
B
C
A
B
C
A
B
C
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of
CMA/Flodyne/Hydradyne
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Control
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