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F3SJ-A
User’s Manual
Chapter3 Setting Adjusted to Application
What can be done by the setting tool
E
• Fixed Blanking Monitoring Function
For safety reasons, F3SJ transitions to lockout state*1 if part of an zone configured for fixed blanking
receives light.
If blanking zone cancellation*2 is set, fixed blanking function is canceled if part of an zone configured
for fixed blanking receives light. That is, F3SJ’s all detection zones are enabled.
In this case, power cycle enables fixed blanking function again with the same setting as previous one.
Turn off the power and on again while all fixed blanking zones are interrupted.
*1 Allowable beams configured on both ends of fixed blanking zone are not monitored.
*2 Can be set only by the PC tool for F3SJ
• Allowable Beam
Allowable beam represents a beam out of the target of fixed blanking monitoring. This should be
configured for a fixed blanking beam that irregularly switches between light incidence and interruption
due to an interrupting object’s oscillation. It can be set for either both or single end of a fixed blanking
zone.
See below for an example.
In this case, 5th, 6th, and 10th beams are set as allowable beams. These beams repeatedly switch
between light incidence and interruption due to an interrupting object's oscillation, but F3SJ keeps
safety output ON while fixed blanking function does not work.
Number of allowable beams available for configuration for each number of fixed blanking beams
*1Available number of allowable beams for configuration is up to 2 for each zone’s both ends for
F3SJ-AN14 and up to 1 for each zone’s both ends for F3SJ-AN20, 25, 30 and 55.
(See Setting Change)
Number of Fixed Blanking Beams Maximum Number of Allowable Beams
1 Setting not possible
21
32
43 *1
5 or more 4 *1
Fixed blanking zone
10th beam
6th beam
5th beam
Upper Upper
Lower
Lower
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