FOCUS Safety Light Curtains/Light Grids

If your company is concentrating on machine safety to protect your employees and manufacturing operations, then you need the new Focus Safety Light Curtains and Light Grids. The latest in a long list of machine safety innovations from JOKAB SAFETY North America, the FOCUS product line is designed to be the most control reliable and dependable presence sensing devices on the market today.

The FOCUS Curtains and Grids offer unsurpassed ease of installation and alignment, plus built-in muting capabilities. They are rated Category 4 Safety Level and have received all necessary national and international approvals.

FOCUS Curtains and Grids provide muting flexibility with inputs provided for partial or complete muting. Features include bypass lamp supervision, automatic or manual supervised reset, 2 supervised PNP safety outputs with cross-circuit monitoring, and M12 connections. LED's provide easy alignment and indication of pollution, power supply and output status. Outputs are overload protected for a maximum load of 500 mA. Floating blanking is offered as an optional feature.

FOCUS comes standard with a prereset function for increased operator safety for applications where the operator can physically pass through the light curtain field. This function prevents inadvertent reset of a cell or machine, thus requiring a prereset button to be activated before the final reset function can occur. (Not available with FB units.)

Muting and Override

The "muting" and "override" functions are available on all FOCUS Light Curtains and Light Grids and is enabled directly when an indication lamp LMS is connected. Muting implies that one or more segments or the whole light curtain can be bypassed during in and out passage of material.

In the FOCUS with muting there is also an override function which makes it possible to bypass the light curtain/grid (i.e. activate the outputs if a machine start is necessary) even if one or more light beams are interrupted. This is the case when the muting function is chosen and the A and B inputs are activated. If during the muting operation a loading pallet has stopped inside the safety field after a voltage loss, the override function is used to enable the pallet to be driven clear.

Floating Blanking or Fixed Blanking

It is also possible to obtain the FOCUS Light Curtains/Grids with either "floating blanking" or "fixed blanking". Floating blanking makes it possible to 'disconnect' a defined number of beams from the safety field. The object is then free to move in the safety field without the safety function being triggered. During fixed blanking, the object is not able to move in the safety field. The other beams are active with normal resolution.