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6.3 RESET FUNCTION
The RX light curtain has a RESET function that is activated consequently to an internal failure.
The operator has to press the NC RESET button that resets the failure condition and thus the ESPE can
return to a normal functioning behavior.
The button has to be kept pressed for at least 5 seconds in one of the following conditions:
•
Output failure;
•
Optic failure;
•
EDM test function failure;
•
Lamp failure;
Safety light curtain STATUS
RESET BUTTON
If the error is not removed, the light curtain goes in the failure configuration (for all failures) again.
Note: The micro controller failure is a non-restorable failure. In this case is
necessary a "turn OFF-turn ON action" to return to a normal behavior. This is
also valid for the following failures:
•
Restart selection failure
•
Override connection failure
•
Override sequence failure
•
Dip switch failure
6.4 RESTART MODE SELECTION FUNCTION
The interruption of a beam due to an opaque object causes the opening of OSSD outputs and the
stop of the safety light curtain, SAFE condition
ESPE standard operation can be reset to NORMAL OPERATION condition (OSSD safety contact
closing condition,
Automatic Restart: after activation, ESPE resets to NORMAL OPERATION condition once the
object has been removed from the controlled area.
Manual Restart: after activation, ESPE resets to NORMAL OPERATION condition only once the
Restart function has been enabled and provided that the object has been removed from the
controlled area (see figure below). This condition, called interlock, is signaled on the display (see
paragraph 0)
Carefully assess risk conditions and restart modes.
In applications protecting access to dangerous areas, the automatic restart mode is potentially
unsafe if it allows the operator to pass completely beyond the sensitive area. In this case, the
manual restart or, for example, the manual restart of the SE-SR2 relay (paragraph 5.7 –
"External relays connection") is necessary.
) in two different ways:
5 sec
.
34
Failure
Normal Operation
Pressed
Released
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