schmersal SLC 410 B Instructions De Montage Et De Raccordement page 52

SLC 410 B / BM features two different types of blanking:
Blanking without Object Presence Obligation (Mode A)
Blanking with Object Presence Obligation (Mode B)
Blanking without Object Presence Obligation (Mode A)
With this function, an object can be introduced in the dangerous area without de-activating the outputs
of the light curtain. The resolution is modified for the entire height of the protected area.
When the mobile object is removed, the outputs remain active. For this type of blanking, it is possible
to choose between three different methods of operation:
1. Mode A1: (Figure 11)
With all the beams free, the protected area is free.
With one beam occupied (except for the synchronism beam), the area is considered free.
With two or more beams occupied, the area is considered occupied.
2. Mode A2: (Figure 12)
With all the beams free, the protected area is free.
With one or two adjacent beams occupied (except for the synchronism beam), the area is
considered free.
With two or more non-adjacent beams occupied, the area is considered occupied.
3. Mode A3: (Figure 13)
With all the beams free, the protected area is free.
With one, two or three adjacent beams occupied (except for the synchronism beam) the
area is considered free.
With two or more non-adjacent beams occupied, the area is considered occupied.
14
CURTAIN free
STATUS
CURTAIN free
STATUS
free occupied occupied
Figure 11
free free occupied
Figure 12
occupied
occupied