Table 5-3 - System Response To Floating Blanking; Table 5-4 Floating Blanking Effects On Resolution; Table 5-5 Possible Blanking Function Combinations - Omron MiniSafe 4800 Series Installation And Operating Manual

5
Table 5-3
1
Channel
Floating Floating
Blanking Blanking
Inactive Active
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
1 0
Exception Exception
System
MACHINE s
Response
STOP Machine
Run
Clear Optical Channel

Table 5-4 Floating Blanking Effects on Resolution

5 . 3 F
▲
Warning!
Resolution will make the MS4800 system less sensitive to objects in the detection zone.
Improper use of these features can result in severe injury to personnel. Fixed Blanking and
Monitoried Blanking may require a hard barrier guard. Fixed Blanking, Monitored Blanking,
Floating Blanking and Reduced Resolution may require an increase in the safety distance. Read
the following section carefully.

Table 5-5 Possible Blanking Function Combinations

When both Fixed Blanking and Floating Blanking are selected, the floating channels are allowed to
occur anywhere within the detection zone except the area selected by Fixed Blanking.
OMRON Scientific Technologies Inc.
System Response to Floating Blanking
1 1 1
Channel Channel Channel
Floating Floating Floating
Blanking Blanking Blanking
Active Active Active
1 2 2
Exception Exception Exception
Machine s s
Run MACHINE MACHINE
STOP STOP
Floating Blanking Effects on Minimum Object Resolution
Standard Minimum Objection
Resolution (No Floating
Blanking)
14mm
20mm
30mm
40mm
B
I X E D L A N K I N G W I T H
Use of Fixed Blanking, Monitored Blanking, Floating Blanking and Reduced
Function Fixed Blanking
Fixed Blanking
Floating Blanking
Monitored Blanking
Reduced Resolution
2 2 2
Channel Channel Channel
Floating Floating Floating
Blanking Blanking Blanking
Active Active Active
0 1 2
Exception Exception Exception
s Machine s
Machine Run Machine
Run Run
Optical Channel Selected by Fixed Blanking
Minimum Object Resolution with
1 Beam Floating
24mm
30mm
50mm
70mm
F B
L O A T I N G L A N K I N G
Possible Blanking Function Combinations
Floating
Blanking
N/A Yes
Yes N/A
No Yes
No No
22
2 2 2
Channel Channel Channel Channel
Floating Floating Floating Floating
Blanking Blanking Blanking Blanking
Active Active Active
2 3 3
Exception Exception Exception Exceptio
s s s
Machine MACHINE MACHINE MACHINE
Run STOP STOP
Minimum Object Resolution
with 2 Beam Floating
34mm
40mm
70mm
100mm
Monitored Reduced
Blanking Resolution
No No
Yes No
N/A No
No N/A
© OMRON STI 0715 PN99804-0010 Rev. R
2
Active
3
ns
STOP