Light Curtain Muting

The timer monitoring the 4 seconds shall be a safety related item.

Light curtain muting.

When enabled a function block is purple with a 3 second count down timer. Type 4 safety light curtains protect personnel from injury and machines from damage by guarding points of operation access areas and perimeters. This post will help clarify the difference between the two so the correct safety light curtain functionality is chosen and the machine runs safely. Safety light curtains continental corporation a leading firm in the manufacturing of electronic car components has always made extensive use of these safety devices in its plants especially in areas where moving components could injure operators.

Type 2 safety light curtains are a cost effective light curtain safety solution for guarding lower risk applications where the result of an accident is only a slight injury. Safety light curtains reliably and cost effectively protect against access into hazardous points and areas. After 3 seconds the status output and mute function turn off. Safety light curtains can be used in a variety of different modes such as muting blanking and floating blanking depending on the needs of the application.

Next lets test the mute function. In material handling applications material is allowed to pass through the protective field without shutting down the machine. From the instant the first of the two muting sensors is cleared. Depending on the variant different machine functions are integrated or can be selected via safe control solutions.

In addition to muting these modules monitor up to three light curtains with presence. The terms muting and blanking are frequently used incorrectly. Muting sensors shall be positioned beyond the light curtain in the dangerous area. It is ideal for applications that require high resolutions due to a short safety distance.

The m4000 advanced curtain safety light curtain together with the ue403 muting switching amplifier provides an efficient solution for conventional muting applications involving automatic material transport. The range from small and compact types to extremely robust and resistant variants that withstand special ambient conditions up to the highest safety level. Gl r series safety light curtains offers a robust solution for optimal levels of safety. Also the status output for the mute light changes to green.

Muting shall be desabled as soon as the light curtain is cleared and not later than 4 seconds max. Muting light curtain monitoring relays allow the automatic temporary suspension of the safety function if certain conditions are met.