Table 5-6 - Sample S And D; Table 5-7 - Sample S And D; Table 5-8 - Sample S And D; Table 5-9 - Sample S And D - Omron MiniSafe 4800 Series Installation And Operating Manual

5.3.1
5. 4 M
OMRON Scientific Technologies Inc. Fremont CA USA
USA: 800.556.6766 Canada:866.986.6766
Mexico and South America: 847.843.7900 All other countries: 510.608.3400
T E F M
HE FFECT OF IXED OR ONITORED
R
ESOLUTION
When Fixed Blanking and/or Floating Blanking are active, the safe mounting distance is affected.
Fixed and Floating Blanking desensitize the light curtain and increase the size of the minimum
detectable object. The increase is equal to the beam spacing distance for each beam that is disabled.
• A MiniSafe MS4800-20 system with one beam disabled has a minimum object resolution of:
20 mm + 10 mm = 30 mm (1.18 inches).
• A MiniSafe MS4800-20 system with two beams disabled has a minimum object resolution of:
20 mm + 10 mm + 10 mm = 40 mm (1.57 inches).
If the size of the object detected by the system increases, the minimum safe distance must also be
increased. Use the minimum object sensitivity given in Tables 5-4 through 5-7 to determine the new
figure to use when computing the safety distance.
Note: In some cases the use of mechanical hard guards may be needed to insure that the
blanked areas are adequately guarded.
Table 5-6 Sample S and D Factors for MS4800-14 System
pf
Total Number of Beams
Disabled by Fixed and/or
Floating Blanking
None
1 Beam
2 Beams
3 Beams
4 Beams
5 Beams
Table 5-7 Sample S and D Factors for MS4800-20 System
pf
Total Number of Beams
Disabled by Fixed and/or
Floating Blanking
None
1 Beam
2 Beams
3 Beams
4 Beams
Table 5-8 Sample S and D Factors for MS4800-30 System
pf
Total Number of Beams
Disabled by Fixed and/or
Floating Blanking
None
1 Beam
Table 5-9 Sample S and D Factors for MS4800-40 System
pf
Total Number of Beams
Disabled by Fixed and/or
Floating Blanking
None
B
O N I T O R E D L A N K I N G
Monitoring Blanking is only available on the MS4800A system.
B F B
LANKING OR LOATING LANKING ON
Minimum
Object Resolution S
14 mm (0.55 inches)
24 mm (0.94 inches)
34 mm (1.34 inches)
44 mm (1.73 inches)
54 mm (2.13 inches)
64 mm (2.52 inches)
>64 mm (2.52 inches)
Minimum
Object Resolution S
20 mm (0.79 inches)
30 mm (1.18 inches)
40 mm (1.57 inches)
50 mm (1.97 inches)
60 mm (2.36 inches)
>64 mm (2.52 inches)
Minimum
Object Resolution S
30 mm (1.18 inches)
50 mm (1.97 inches)
>64 mm (2.52 inches)
Minimum
Object Resolution S
40 mm (1.57 inches)
>64 mm (2.52 inches)
23
M O
INIMUM BJECT
Depth Penetration Factor, Dpf
for use with ANSI Formula (Dpf
= 3.4 (S-.276) inches)
0.93 inches (24 mm)
2.26 inches (57 mm)
3.62 inches (92 mm)
4.94 inches (125 mm)
6.3 inches (160 mm)
7.6 inches (193 mm)
36 inches (900 mm)
Depth Penetration Factor, Dpf
for use with ANSI Formula (Dpf
= 3.4 (S-.276) inches)
1.75 inches (43 mm)
3.1 inches (78 mm)
4.4 inches (111 mm)
5.76 inches (146 mm)
7.1 inches (180 mm)
36 inches (900 mm)
Depth Penetration Factor, Dpf
for use with ANSI Formula (Dpf
= 3.4 (S-.276) inches)
3.1 inches (78 mm)
5.76 inches (146 mm)
36 inches (900 mm)
Depth Penetration Factor, Dpf
for use with ANSI Formula (Dpf
= 3.4 (S-.276) inches)
4.4 inches (112 mm)
36 inches (900 mm)
© OMRON STI 0715 PN99804-0010 Rev. R