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107031-33-EN FR26 GLO 1101 Printed in France
2.
Description and Operation
2.1
Overview
This chapter contains terms and concepts related to safety and the application of the FF-SYA Series light curtain. The
importance of the installer's role in the set-up and installation of the machine guarding systems is discussed. The section also
contains specification and order guide information.
In order to simplify this manual, the term “safety light curtain” is used for the FF-SYA14, FF-SYA30 and FF-SYA60 safety light
curtains as well as for the FF-SYA234 safety multibeam systems for access detection.
2.2
Machine Guarding and Perimeter Protection
The FF-SYA14 and FF-SYA30 Series through-scan light curtains are non-contact machine guarding devices designed for
point-of-operation protection at power driven machinery (see Figure 2-1) where fingers or hands need to be detected.
The FF-SYA60 Series light curtains are designed for presence detection in dangerous areas where legs or a body need to be
detected.
The FF-SYA234 Series multibeam systems are used for access detection in dangerous areas where a body needs to be
detected.
IMPROPER INSTALLATION OF FF-SYA SERIES LIGHT CURTAIN
•
Install FF-SYA light curtains in accordance with this installation manual and applicable local safety regulations (OSHA,
ANSI, European standards).
•
Allow entry into protected area by interruption of sensing field of the safety light curtain or activation of another safeguarding
device only.
Failure to comply with these instructions could result in death or serious injury.
FF-SYA Series light curtains generate a stop signal if the sensing field is interrupted. Further operation is prevented until the
sensing field is cleared. The FF-SYA Series light curtain monitors itself continuously for component failures, misalignments,
and dirt accumulations. Small misalignments or dirt accumulation are indicated by a flashing LED. If misalignment or dirt
accumulations become too great or a component fails, a stop signal is generated. Operation is prevented until the condition is
corrected.
IMPROPER SYSTEM PERFORMANCE
•
Comply with local safety requirements when designing machine control link, interface and all control elements that affect
safety.
•
Install two independent safety relay contacts into machine control stop circuit controlled by FF-SYA Series light curtain.
•
Ensure two independent stop circuit relays have mechanically linked contacts to reliably detect a welded contact.
•
Using the FF-SRS59392 safety control module will provide safe relay contacts to the machine control stop circuit.
Failure to comply with these instructions could result in death or serious injury.
FF-SYA Series light curtains are designed so a malfunction or an interruption of the sensing field will immediately cause the
light curtain to generate a stop signal. This stop signal will be generated automatically if a malfunction occurs in the light
curtain. All other machine control components that affect safety should also be designed to the same high level of operation.
IMPROPER MACHINE REACTION
•
Ensure the machine control is capable of stopping the machine at any point in the cycle.
•
Ensure that a loss of power does NOT impair stopping action of machine.
Failure to comply with these instructions could result in death or serious injury.
