Operation; Synchronisation; Resolution (Ff-Sya14, Ff-Sya30 And Ff-Sya60 Series) - Honeywell FF-SYA14 Series Manual

CE Only the packaging and the documentation of FF-SYA Series products carry the CE mark; the EC declaration of
conformity is at the back of this manual
INRS "Institut National de Recherche et de Sécurité" French notified body for the CE certification of Electrosensitive
protective Equipment)
cCSAus The Canadian Standard Association has been accredited as a Nationally Recognised Testing Laboratory (NRTL)
by the US Occupational Safety and Health Administration (OSHA). The CSA is able to carry out tests according to
the Canadian and UL standards and delivers a single certificate which is valid for both Canada and the United
States.

2.4 Operation

The FF-SYA Series are through-scan light curtains. Emitters transmit modulated, infrared light that is detected by
photoreceivers in the receiver. The number of light beams depends on the protected height and resolution of the light curtain.
Figure 2-6 FF-SYA Series Operational Diagram

2.4.1 Synchronisation

The emitter and the receiver are optically synchronised. The synchronisation is an effective beam transmitted by the emitter
towards the receiver. No electrical connection is necessary between the emitter and the receiver that simplifies
installation and maintenance.

2.4.2 Resolution (FF-SYA14, FF-SYA30 and FF-SYA60 Series)

FF-SYA Series light curtain resolution (sometimes called minimum object sensitivity) is the minimum object size that will
interrupt at least one light beam when it enters the sensing field. Anything entering the sensing field equal to or greater than
this minimum size will be detected. Resolution is not affected by scanning distance or dust accumulation. For safety reasons,
the FF-SYA Series does not have a sensitivity adjustment. Two factors determine the resolution of the light curtain: beam pitch
and light lens diameter (see Figure 2-8).
Lens diameter is the smallest width that will block a single light beam. The combination of the beam diameter and centre
distance gives the FF-SYA14 (see Figure 2-7) a resolution of 14 mm (0.6 in), the FF-SYA30 a resolution of 30 mm (1.2 in) and
the FF-SYA60 a resolution of 60 mm (2.4 in).
107031-33-EN FR26 GLO 1101 Printed in France
Sensing range
Sensing range
Emitter
Receiver
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