Omron F3SL, Инструкция по эксплуатации

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5-1 Exact Channel Select (ECS) 5 Detection Options
8
5 Detection Options
5-1 Exact Channel Select (ECS)
ECS disables selected, fixed areas of the detection zone by masking off specific, fixed beam locations. ECS is
helpful when stationary objects such as tooling and fixtures permanently obstruct a portion of the detection zone.
ECS requires that any portion of the detection zone which is blocked remain blocked. If the obstruction is re-
moved the F3SL system will enter a machine stop state. The synchronization beam (the beam nearest to the
cable) cannot be selected. Also, one additional beam must remain unblocked. A channel is defined as one emit-
ter/receiver pair or “beam”.
See "Table 5-1 System Response to Exact Channel Select" on page 8 for a diagram of F3SL system response
during operation with ECS active.
5-2 Floating Blanking
Up to two channels can be disabled at any location in the detection zone (except for the synchronization beam)
without the F3SL system going to the machine stop state. The disabled channels are not fixed at a single location
but “float” through the detection zone.
See Table 5-2 for a diagram of F3SL system response during operation with Floating Blanking active.
WARNING
Use of Exact Channel Select and/or Floating Blanking will make the F3SL system less sensitive to objects in
the detection zone. Improper use of either can result in severe injury to personnel. Exact Channel Select
may require a hard barrier guard (see “9-2-1 Additional Guarding” on page 19), Exact Channel Select or
Floating Blanking may require an increase in the safety distance. Read the following section carefully.
Table 5-1 System Response to Exact Channel Select
Channel Select
Status
Exact Channel Select
Inactive
Exact Channel Select
Inactive
Exact Channel Select
Active
Exact Channel Select
Active
Exact Channel Select
Active
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5...
System
Response
machine run machine stop machine run machine stop machine stop