schmersal SLC 410 B Montage- Und Anschlussanleitung Seite 55

2. Mode B2: (Figure 15)
With all the beams free, the mobile object is missing, therefore the outputs are de-
activated. The letter "b" indicating that the outputs are de-activated due to the absence of
the mobile object is shown on the display of the Receiver.
With one beam occupied, the mobile object is present (blanking active and outputs ON).
With two or three adjacent beams occupied (except for the synchronism beam), the area
is considered free (tolerance of ±1 beam).
With two or more non-adjacent beams occupied, the area is considered occupied.
CURTAIN
STATUS
Nominal resolution
14 mm
20 mm
40 mm
Nominal resolution
90 mm
Table 8 - Blanking with Object Presence Obligation
Calculate the safety distance S following the formula of page 8 using the D value
obtained from table 8.
Light curtain free
occupied free
Figure 15
Type of Blanking
No blanking
Floating blanking B1
Floating blanking B2
No blanking
Floating blanking B1
Floating blanking B2
No blanking
Floating blanking B1
Floating blanking B2
Type of Blanking
No blanking
Floating blanking B1
Floating blanking B2
MOBILE
OBJECT
free occupied
Effective resolution at the edges of the blanking area
Minimum detectable object
140 mm
210 mm
Light curtain occupied
free occupied
14 mm
16 mm
26 mm
20 mm
20 mm
30 mm
40 mm
60 mm
90 mm
90 mm
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