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WARNING
A F3SL should only be installed, checked out and maintained by a qualified person. It is important that the
user be familiar with the installation requirements, safe mounting distance, controls and features before
using the F3SL.
If the F3SL is used as a safety device, the user has the responsibility to insure that applicable national, fed-
eral and local safety rules, codes and regulations are satisfied. In addition, the user should insure that all
machine operators, maintenance personnel, electricians, supervisors, etc. are familiar with and understand
all instructions regarding the use of the F3SL, the machinery on which it is installed and the appropriate
safety regulations.
Perimeter guarding installations must not allow a machine or robot to restart automatically. Use a start switch
placed outside and within view of the hazardous area.
Disconnect power before removing end caps.
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 9-2-1 Additional Guarding 19),
Exact Channel Select or Floating Blanking may require an increase in the safety distance. Read the follow-
ing section carefully.
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.
This product is designed for use on a 24 VDC, negative ground (protective earth) electrical system only.
Never connect the F3SL to a positive ground (protective earth) system. With a positive ground (protective
earth) wiring scheme, certain simultaneous shorts of both safety outputs may not be detected and the
guarded machine may not stop resulting is severe operator injury.
Never install a F3SL system without regard to the safety distance. If the F3SL system is mounted too close
to the point of operation hazard, the machine may not stop in time to prevent an operator injury.
Install the F3SL system so as not to be affected by the reflection from the reflective surface. Failure to do so
may cause the system undetectable, resulting in severe operator injury.
Never use only a single safety output to control the machine. Should this single output fail, the machine may
not stop, resulting in severe operator injury. The machine must be connected using both safety outputs.
The tests outlined in the Test Procedure in Appendix B must be performed at installation, according to the
employer’s regular inspection program and after any maintenance, tooling change, set up, adjustment, or
modification to the F3SL system or the guarded machine. Where a guarded machine is used by multiple
operators or shifts, it is suggested that the test procedure be performed at each shift or operation change.
Testing ensures that the light curtain and the machine control system work properly to stop the machine.
Failure to test properly could result in serious injury to personnel.
Summary of Contents for F3SL
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