FF-ST4 Series
DESCRIPTION
The FF-ST4 Series is designed for hazardous point-of-operation or
access detection in industrial machine safeguarding applications.
Its enhanced output stage design provides longer cable length
through M12 plugs. The Honeywell patented push-pull type OSSD
outputs allow for low impedance at any time, while regular open
collector type OSSD outputs have high impedance when OFF. As
a result, the M12 limited wire section is no longer a constraint.
ASIC technology provides fast response times compared to
the micro-processor technology commonly used for safety light
curtains. The FF-ST4 light curtain response times are worst-case
response times including the sensor and the output stage, the em-
bedded functions processing such as blanking or muting, and pos-
sible OSSD output failure modes. Fast response times contribute
to shortened safety distances and reduced overall machine size.
POTENTIAL APPLICATIONS
• Automotive plant oor industry
• Food and beverage industry
• Handling industry
• Machine tool industry
• Packaging industry
• Paper industry
• Special machines
FEATURES
• Type 4 per IEC61496-1/2, SIL2 per IEC61508
• Resolutions: 14 mm, 30 mm, 80 mm
• Protection heights: 200 mm to 1400 mm (14 mm and 18 mm
resolution) or 200 mm to 1800 mm (30 mm and 80 mm resolu-
tion)
• Scanning ranges: 0 m to 3.5 m (14 mm resolution) or 0.25 mm
to 10 m (other resolutions)
• Patented, unique solid state safety OSSD outputs allow longer
cable lengths
• Patented, automatic polarity recognition inputs provide easy, last
minute conguration
• M12, 5 and 8 pole plugs
• ASIC technology provides fast response times
• Metal housing and reduced window size provide sturdy design
• Optimized overall size with reduced inactive zones
• Different function packages available
• Optional AS-i Safe eld module
Type 4 Safety Light Curtains
Some models offer exible conguration of different mode of
operations through the M12, 8 pole plug. The Honeywell patented
inputs with automatic polarity recognition reduce the amount of
wiring and increase the number of congurations while keeping
the advantages of the pre-wired, off-the shelf M12 cord sets.
The sturdy metal housing (including zamak end caps), and a small
window that reduces exposure to the environment, allow the FF-
ST4 to operate in most harsh duty applications.
Accessories include mounting kits, connectors, power supply, and
relay modules.
Type 4
per IEC/EN 61496-1/2
Approved as