Using Exact Channel Select With Floating Blanking - Omron F3SL Instruction Manual

5-3 Using Exact Channel Select with Floating Blanking

Floating
Blanking Channel
Inactive Floating
Blanking
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5...
1
Exception Exceptions
System Response
machine stop machine
Symbol
= Optical channel is not blocked.
= Optical channel is blocked.
= Optical channel is selected by Exact Channel Select.
= Optical channel is selected by Exact Channel Select and is blocked.
5-3 Using Exact Channel Select with Floating Blanking
Using Exact Channel Select with Floating Blanking is an advanced feature. All situations which may occur to
the F3SL system detection zone must be carefully considered. The F3SL system may be less sensitive to
objects in the detection zone. The safety distance must be increased. Failure to do so may cause serious
injury.
To prevent a hand or other objects to enter the channel-selected part, provide a physical guard such as a
fence.
When both Exact Channel Select and Floating Blanking are selected, the floating channels are allowed to occur
anywhere within the detection zone (except for the beam nearest the cable), even within the area selected by
Exact Channel Select. In these areas, a channel that should normally be blocked is allowed to be clear.
Table 5-2 System Response to Floating Blanking
1 1 1 1
Channel Channel Channel
Floating Floating Floating
Blanking Blanking
Blanking
Active Active Active
Active
0 1 2 2
Exception Exceptions Exceptions
machine machine stop machine stop
run run
Table 5-3 Icon Key for Tables 5-1 and 5-2
2 2 2
Channel Channel Channel
Floating Floating Floating
Blanking Blanking Blanking
Active Active Active
0 1 2
Exceptions Exception Exceptions
machine machine machine
run run run
Description
WARNING
5 Detection Options
2 2 2
Channel Channel Channel Channel
Floating Floating Floating Floating
Blanking Blanking Blanking Blanking
Active Active Active Active
2 3 3
Exceptions Exceptions Exceptions Exceptions
machine machine stop machine stop machine stop
run
2
3
9