S4B Safety Light Curtain

The S4B Series Heavy-Duty Type 4 Safety Light Curtain provides durable, dependable machine guarding for a variety of applications. Cascading functionality simplifies installation by reducing wiring and the auto cascade feature automatically recognizes connected curtains. Color-coded cordsets minimize installation errors and allow easy replacement if a component is damaged. Fast response times and two resolution options, 14-millimeter and 30-millimeter, offer greater safety protection. Zone indication LEDs visually identify blocked areas and communicate alignment status, while the weak beam signal indicates when a curtain needs cleaning. Multiple mounting options and optional mute arm kits give the S4B Series enhanced flexibility for installation and operation.

Simplify Installation and Maximize Uptime

  • Optimized auto cascade saves installation and setup time
  • Specially designed cordsets simplify installation and maintenance
  • 14- and 30-millimeter resolution options offer safety protection for different applications
  • Zone indication and weak beam strength indicators reduce commissioning time and help identify maintenance needs
  • Muting accessories refine system design and installation
  • Endcap mounting and center mount brackets enable greater installation flexibility

S4B Resources

The S4B is the next generation of safety light curtains. With its capabilities of auto cascading, 14- and 30mm resolution, zone indication and weak beam strength indicators, muting, and end cap mounting makes the S4B simple to install and maintain.

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7 May 2024
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S4B Benefits

Save Installation and Setup Time with Optimized Auto Cascading

Cascading functionality is now available on the S4B, simplifying installation by minimizing the wiring needed to connect light curtains to a controller. The auto cascade feature in the S4B goes a step further to facilitate setup and installation, automatically recognizing the next light curtain as they are connected. The minimal response time impact when cascaded allows the S4B to be installed closer to the equipment being guarded, making more efficient use of valuable floor space. Each curtain has the flexibility to be used as a standalone pair or part of a cascade. That determination is made by the cordset selected. This means fewer parts to stock, easier ordering, and fast installation.

Simplify Installation and Maintenance Using Specially Designed Cordsets

Cordsets for the S4B do more than simply provide power and communication. They determine if the light curtain is used as a standalone pair or as part of a cascade. Specific connection genders and color-coded cordsets simplify and error-proof installation, using yellow for connecting multiple light curtain sticks while black runs back to the controller. In case of cordset damage, you can reduce costly repairs by easily removing and replacing just the cordset instead of the entire curtain. The cordsets use standard 5-pin, M12 connectors for easy connection to safety I/O modules. An optional 8-pin cordset provides an EDM option for use with simple safety relays. 

Detect Smaller Objects with New 14-Millimeter Resolution

The S4B is now available in two different optical resolutions to meet the varying needs of the industrial market. Both resolutions offer high response speeds for greater safety protection with minimal hazard. Models with 14-millimeter resolution have a tighter beam spacing for finger-level detection. Models with 30-millimeter resolution are optimal for hand-level detection applications.

Refine System Design and Installation with Muting Accessories

Muting works by allowing objects to pass through operational light curtains by temporarily suspending their safety function, then resuming after the object has passed through the light curtain’s beams. Adding mute arm kits to the S4B helps create a muting solution that simplifies system design and installation. Available for one-sided, X-, and T- configurations, the rigid mute arms protect sensors from damage and misalignment. Flexible mounting options for photoelectric sensors accommodate a wide range of object sizes passing through. The muting block consolidates wiring by combining the S4B light curtains and non-safety sensors into one block.

Install with Greater Flexibility Using New Endcap Mounting

The S4B now has endcap mounting in addition to center mount brackets. Each bracket offers 15 degrees of rotational freedom. The endcap mounting option provides a robust mounting solution offering flexibility for integration, easing installation and alignment.

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Predict and Prevent Downtime

Don't let a challenging environment with dust or dirt stop your machine from operating. The S4B detects when the beam strength is low and will send the signal via pin 5 on the connector to your PLC or HMI to notify maintenance teams that the lens needs to be cleaned.

Intuitive Setup and Swap-out

Select and save scan code setting without a PC for easy setup and swap-out.

Reliable Finger Detection

The S4B is available with 14-millimeter resolution for reliable finger detection.

Reliable Hand Detection

The S4B is available with 30-millimeter resolution for reliable hand detection.

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