NUOVA ELETTRONICA DSP LASER AP, Instruction Manual

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DSP LASER AP with MCS
11.9. Blanking Modality of DSP LASER AP
DSP LASER AP is equipped with a control circuit able to activate the following operating
modes:
1. Detection area fully active:
Mode to use generally for all the types of work, because it present the fewest residual
risks.
2. Blanking of the front area and exclusion of the rear area:
Mode which can be used to bend box of special shape or pieces of very small size
which can be worked without intercepting part of the detection area.
3. Exclusion of the rear area:
The rear protection has been inserted for special uses of the bending machine, as when
more bending stations are installed and the operator could, through a particular
movement of the arm, reach between station and station and put the fingers under the
bending area, accessing from the rear side. This particular and extreme possibility, not
considered by the standard EN12622 relevant to the safety of the press brakes, has
been instead evaluated by NUOVA ELETTRONICA and, then, protected by means of
DSP LASER AP. Then this function can be excluded when the protected machine has
no need (for example, it is equipped with a single pair of tools, one upper and the other
lower, for all the machine length) or when the rear backgauges are next to the bending
line and, intercepting the detection area, do not allow the bending.
For this purpose, the command circuit of the press must be equipped with 3 stable position
key selector, with key extractable only in position 1.
Residual
risk :
The three modes present different residual risks. Then the key must be
kept only by the person responsible of the department, who has to
evaluate the presence of all the requirements for the correct use of the
protection system (operator trained and informed about residual risks,
tools and DSP LASER AP correctly installed, etc.). Before leaving the
press, anyway, the operator must set the selector to mode 1.
The selection of operating mode 2 allows enabling the blanking function for the front area
and the exclusion of the rear area. The mode 3 allows the exclusion of the rear raea only.
The real activation of the blanking function is carried out following the indications reported
later.
When the operating mode 2 or 3 is selected, the yellow LED present in the front part of RX
will be always active and blinking. In this way, the operator will be always warned by the
device that the working modality is different from mode 1.
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DLAM01EN