Light Curtain Muting

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.

Light curtain muting.

In normal operation if a light curtain detects an object it causes the safety system to stop any hazardous motion in the hazardous area. The terms muting and blanking are frequently used incorrectly. Muting light curtain monitoring relays allow the automatic temporary suspension of the safety function if certain conditions are met. Depending on the variant different machine functions are integrated or can be selected via safe control solutions.

Muting sensors shall be positioned beyond the light curtain in the dangerous area. Next lets test the mute function. Gl r series safety light curtains offers a robust solution for optimal levels of safety. Light curtain with muting two sensor l type and configurable safety relay introduction light curtains are used to detect attempted access to a hazardous area.

It is ideal for applications that require high resolutions due to a short safety distance. The range from small and compact types to extremely robust and resistant variants that withstand special ambient conditions up to the highest safety level. After 3 seconds the status output and mute function turn off. When enabled a function block is purple with a 3 second count down timer.

This post will help clarify the difference between the two so the correct safety light curtain functionality is chosen and the machine runs safely. From the instant the first of the two muting sensors is cleared. 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. In material handling applications material is allowed to pass through the protective field without shutting down the machine.

The timer monitoring the 4 seconds shall be a safety related item. Muting shall be desabled as soon as the light curtain is cleared and not later than 4 seconds max. 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. Type 4 safety light curtains protect personnel from injury and machines from damage by guarding points of operation access areas and perimeters.

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. In addition to muting these modules monitor up to three light curtains with presence.