Automatic And Manual Restart - Datalogic Laser Sentinel Instruction Manual

FUNCTIONS

AUTOMATIC AND MANUAL RESTART

If Laser Sentinel detects an opaque object, the OSSD outputs switch to the OFF-status
(the opening of the safety contacts). The restart mode allows the safety laser scanner to
return to a normal operating condition.
The restart of the device (the closing of the OSSD safety contacts) can be carried out in
two different ways: Automatic or Manual Restart.
Automatic Restart
When an opaque object is detected, the safety laser scanner enters the safe condition.
After the object has been removed from the safety area, the device normal functioning
is restored.
The response time is the time between the object introduction in the Safety area and
the OSSDs achieving the STOP condition. The recovery time is the time between the
object removal from the protected area and the OSSDs achieving the GO condition.
The Automatic Restart can be set through the GUI and the minimum recovery time for
device restart is 200 ms. This time can be increased up to 60000 ms through the GUI.
NOTE
Manual Restart
After the safety laser scanner has detected an opaque object in the Safety area, normal
operation will be restored only by pressing the Restart button (normally open push-but-
ton) after the object has been removed from the Safety zone.
The Restart push-button must be kept pressed between a minimum of 500 ms and a
maximum of 4.5 seconds. When the Restart push-button is released, the OSSD outputs
switch to normal operation.
There are two intermediate states (internally controlled) between the stop and the
restart of the safety laser scanner: the Interlock ON (device normal operation can be
restored, because the detected object has been removed from the Safety zone) and the
Interlock OFF (the device is OFF because the object has not been removed from the
Safety zone).
NOTE
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SAFERY LASER SCANNER
OSSD 1/1 1/2 has both Automatic and Manual Restart functions.
Figure 6 - Restart timing (auto)
The Interlock ON will be signaled by a LED located under the device display
(refer to " LEDs and Display" on page 95 ).