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Muting override.Muting override.
If the machine stops with the material in the area controlled by the light
barrier, an emergencemergency operation is required to restart the system in that
the test cannot be performed.
Using the override function, the AU S3M2 control unit enables temporary
energization of its internal relays A and B, thus permitting controlled
starting of the system by an authorized operator.
This function, which sets the control unit to override statusoverride status, must be
carried out through simultaneous activation of two manual controls which
must be of the latching type, such as for example push-buttons or key
selectors with spring return. These must also be positioned in such a way
that the operator authorized to carry out the operation has complete
visibility of the area controlled by the light barrier and of the danger area.
After removing the material from the area controlled by the light barrier
and muting sensors, the operator completes the operation releasing the
manual controls and the control unit promptly de-energizes its own output
circuit with consequent stopping of the plant. The next test will allow the
AU S3M2 to make the necessary functional check-out required at the start
of a new work phase.
AU S3M2 FUNCTIONING DIAGRAMSAU S3M2 FUNCTIONING DIAGRAMS
Access point protection.Access point protection.
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