NUOVA ELETTRONICA DSP LASER, Инструкция по эксплуатации

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DSP LASER
10 DSPLSR01EN
The transmitter generates the emission of a modulated visible laser light which, reaching
the receiver, creates a detection area and make this activates the passage to the state ON
of the two OSSD. We underline that the activation of the receiver is made possible only by
the emission generated by the transmitter which is electrically connected to. An emission
generated by an identical transmitter, but not electrically connected with the receiver cannot
activate it.
Fig. 8.1 Principle scheme
In “
state ON
” the device DSP LASER is in the phase of active control of the equipment
during its operation, while in “
state OFF
” DSP LASER has already intervened on the
equipment, deactivating its command mechanisms due to the occurrence of a possible
danger condition, the intrusion of an element into the detection area.
DSP LASER is realized with:
•
two independent microprocessors to implement the function of control of the detection
area, of command of the outputs and, in general, of monitoring of the system;
•
two safety solid-state OSSD switching devices protected against the short-circuit.
This type of circuit presents a high redundancy level, with double circuits, which ensures
what required by the rule CEI EN 61496-1:2014 to a ESPE device of type 4; in detail, in the
normal operation the two OSSD switch to state OFF (in the lead times), when one of the
following conditions occurs:
•
an intrusion in the detection area
•
a lack of power supply
•
after 30 hours of continue operation
In any condition of dangerous fault of DSP LASER itself, at least one of the two OSSD
switches to state OFF (in the lead times) and maintains this state until when the defect has
been removed.
The device DSP LASER is provided with a control circuit which, if interfaced with proper
position detectors installed on the press-brake, can implement a function of automatic
monitoring of the overtravel in compliance with EN 12622:2014.
TX RX
LASER BEAM