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SF4D Safety Light Curtain

  • Type 4 with very robust aluminum housing
  • Extreme long sensing range up to 15m
  • Status and stability indicators for easy installation and maintenance
  • Integrated PNP and NPN outputs
  • Complies with all common norms and standards
  • No blind zones
  • Finger, hand and arm protection type available in heights of up to 1.9m
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New concept: both compact and robust

 

  • Type 4 with very robust aluminum housing
  • Extreme long sensing range up to 15m
  • Status and stability indicators for easy installation and maintenance
  • Integrated PNP and NPN outputs
  • Complies with all common norms and standards
  • No blind zones
  • Finger, hand and arm protection type available in heights of up to 1.9m

 

Higher stability than SF4B thanks to changes to the interior design

Higher stability than SF4B thanks to changes to the interior design Compared to the SF4B<V2> series, the internal unit has been downsized considerably. The volume of the internal unit has been reduced by more than 60%. The volume gained has been used to strengthen the case structure, making it more rigid without changing the outer dimensions. This makes the SF4D compatible with the SF4B<V2> series in terms of dimensions.

 

Twisting- and bending-resistant design

 

The new interior design makes the safety light curtain more rigid and thus more robust. The SF4D does not bend or twist as easily when it comes into contact with other objects.

  1. Resists twisting!
  2. Resists bending!
  3. Resists shock!

Response time max. 10ms for a single light curtain

 

When only one light curtain is installed, the OFF response time of the control outputs (OSSD1, OSSD2) is max. 10ms, the fastest in its class. For multiple safety light curtains mounted in series, the response time is max. 18ms. Thanks to the fast response it is possible to mount the safety light curtain much closer to the dangerous area.

 

Easy calculation of safety distance thanks to special no-blind zone design

The SF4D inherits the no-blind zone design of the SF4B series. Even in an L-shaped or U-shaped layout, the beam pitch does not change (excluding finger protection type). This makes the calculation of the safety distance easier.

Impervious to liquids and dust

 

The safety light curtain has IP67 and IP65 (IEC) degree of protection and complies with NEMA Type 13 (NEMA: National Electrical Manufacturers Association), a standard to determine how well the enclosures of electronic components resist the infiltration of dust and moisture. For details refer to NEMA 250 “Enclosures for Electrical Equipment (1000 volts Maximum)”.

 

Easy installation of emitter and receiver thanks to improved optical properties

Thanks to a higher emission power, the SF4D not only works reliably on shorter distances, but also covers a longer sensing range than previous models.

Sensing range

Mode Type of protection Sensing range
Short mode (default setting) Finger protection type 0 to 7m
Hand protection type
Arm / Foot protection type		 0 to 9m
Long mode Finger protection type 0 to 12m
Hand protection type
Arm / Foot protection type		 0 to 15m

Please note that installing the front protection cover reduces the sensing range.

Minimizing of deviations among elements

 

The safety light curtain is equipped with a unique element alignment technology, thus minimizing deviations in the beam axis. Additionally, the LED quality has been improved.

 

Digital indicator for stable light reception

 

The incident beam intensity indicator (also called stable-light-reception indicator) helps to adjust the beam during installation and to control the light quality during operation. The amount and quality of the light received is indicated by the LED color and a one-digit display. When the LED lights up in orange, the light is unstable. Stable light is indicated by a green LED. The numbers displayed range from 1 to 3. The higher the number, the more stable the light. This way, it is easy to discover and remove errors caused by dirt on the detection surface or beam misalignment.

  1. Incident beam intensity indicator:
    • Stable light: Lights up green
    • Unstable light: Lights up orange
    • Light blocked: Off
  2. Digital indicator
    • High level of light received: Displays green “3”
    • Medium level of light received: Displays green “2”
    • Low level of light received: Displays green “1”
    • Light blocked: Off

 

PNP and NPN polarity combined in a single model

The SF4D series combines both a PNP and an NPN transistor output in a single model. This helps to reduce the number of different models and costs.

 

Applications

Product Feature Product Feature
Complete housing of a robot Suitable for applications in challenging environments

 

Finger protection type (min. object to be sensed ø14mm, 10mm beam pitch)

Thanks to construction/design, no blind zone even when two light curtains are mounted on top of each other. Beams start very close to the edges of the light curtain.

Model No. Sensing range No. of beam channels Protective height Beam pitch
SF4D-F15 0 to 7m (short mode)
0 to 12m (long mode)
(selectable by DIP switch)		 15 150mm 10mm
SF4D-F23 23 230mm
SF4D-F31 31 310mm
SF4D-F39 39 390mm
SF4D-F47 47 470mm
SF4D-F55 55 550mm
SF4D-F63 63 630mm
SF4D-F71 71 710mm
SF4D-F79 79 790mm
SF4D-F95 95 950mm
SF4D-F111 111 1110mm
SF4D-F127 127 1270mm

Hand protection type (min. object to be sensed ø25mm, 20mm beam pitch)

Model No. Sensing range No. of beam channels Protective height Beam pitch
SF4D-H8 0 to 9m (short mode)
0 to 15m (long mode)
(selectable by DIP switch)		 8 150mm 20mm
SF4D-H12 12 230mm
SF4D-H16 16 310mm
SF4D-H20 20 390mm
SF4D-H24 24 470mm
SF4D-H28 28 550mm
SF4D-H32 32 630mm
SF4D-H36 36 710mm
SF4D-H40 40 790mm
SF4D-H48 48 950mm
SF4D-H56 56 1110mm
SF4D-H64 64 1270mm
SF4D-H72 72 1430mm
SF4D-H80 80 1590mm
SF4D-H88 88 1750mm
SF4D-H96 96 1910mm

Arm / Foot protection type (min. object to be sensed ø45mm, 40mm beam pitch)

Model No. Sensing range No. of beam channels Protective height Beam pitch
SF4D-A4 0 to 9m (short mode)
0 to 15m (long mode)
(selectable by DIP switch)		 4 150mm 40mm
SF4D-A6 6 230mm
SF4D-A8 8 310mm
SF4D-A10 10 390mm
SF4D-A12 12 470mm
SF4D-A14 14 550mm
SF4D-A16 16 630mm
SF4D-A18 18 710mm
SF4D-A20 20 790mm
SF4D-A24 24 950mm
SF4D-A28 28 1110mm
SF4D-A32 32 1270mm
SF4D-A36 36 1430mm
SF4D-A40 40 1590mm
SF4D-A44 44 1750mm
SF4D-A48 48 1910mm

Mounting brackets

The safety light curtain does not come with a mounting bracket. Please order it separately.

Mounting bracket type Model No. Required bolts Description
Beam adjustment mounting bracket MS-SFD-1-5 2 M5 or 1 M8 hexagon-socket head bolt(s)
  • For rear or side mounting
  • 4 pcs./set for emitter and receiver
  • Material: cold-rolled carbon steel (SPCC)
MS-SFD-1-6 1 M6 hexagon-socket head bolt
MS-SFD-1-8 1 M8 hexagon-socket head bolt
Beam adjustment mounting bracket for
installation without blind zones (notes 1 and 2)		 MS-SFD-3-6 2 M5 or 2 M6 hexagon-socket head bolts
  • For rear or side mounting
  • 4 pcs./set for emitter and receiver
  • Material: die-cast zinc alloy
Intermediate supporting bracket (note 3) MS-SFB-2 2 M5 hexagon-socket head bolts
  • Supports the middle of the safety light curtain in locations subject to vibration.
  • 2 pcs./set for emitter and receiver
  • Material: die-cast zinc alloy

Notes:

  1. The required number for emitter and receiver varies depending on the number of beam channels.
  2. The mounting brackets must extend beyond the protective height for ensure there is no blind zone.
  3. One set is required when the number of beam channels is more than 111 beam channels for SF4D-F, more than 56 beam channels for SF4D-H, and more than 28 beam channels for SF4D-A□.

Cables

The safety light curtain does not come with bottom cap, extension or adapter cables. Please order them separately.

 

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