Override Function - Omron Sti F3SJ-E N25 Series User Manual

System Configuration and Functions


Override Function

Easy Type
Basic Type (basic system)
Basic Type (muting system)
The override function turns the safety outputs ON when the muting start condition is not satisfied. If a
workpiece stops while passing through the F3SJ-B, as shown below, causing a muting error, the
normal state cannot be recovered unless the workpiece is removed from the muting sensors and the
detection field of the F3SJ-B. However, the override function will mute the safety outputs of the F3SJ-B
so that the conveyor can be restarted to move the workpiece out of the muting sensors and detection
zone.
The override function can be enabled for up to 60 s.
The muting and override functions disable the safety function of the device. You must
ensure safety using other method when these functions are operating.
Install the switch that uses hold-to-run device such as a spring-return key switch. Install
the switch in a location that provides a clear view of the entire hazardous zone and where
it cannot be activated from within the hazardous zone. Make sure that nobody is in the
hazardous zone before activating the override function.
 Override start conditions
If all of the following conditions are present in the F3SJ-B, the override function starts. The override
function can be put into effect even when there is a muting error.
1. If either muting input 1 or 2 is ON (One or more muting sensors are turned ON by a workpiece)
2. The F3SJ-B is blocked and the output is OFF
3. Under the conditions of 1 and 2 shown above, the reset input changes from ON to OFF and the test
input changes from OFF to ON at the same time. The changing time of these two inputs must be 0.3
s max.
F3SJ-E/B
36
User's Manual
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Reflector
F3SJ-B
B1
Workpiece
A1
F3SJ-B
Reflector