The value of light curtains is greater than many realize having functions and features relevant for machine safety factory control and productivity.
Light curtain muting sick.
This post will help clarify the difference between the two so the correct safety light curtain functionality is chosen and the machine runs safely.
For this purpose muting sensors are installed on both sides of the light curtain which determine in which cases to activate muting.
The safety light curtain has become so ubiquitous that it is all too easy to regard it as a simple on off device a fail safe fit and forget substitute for protective fencing.
The range from small and compact types to extremely robust and resistant variants that withstand special ambient conditions up to the highest safety level.
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.
Intelligent and state of the art technologies such as nfc and io link offer completely new possibilities for comprehensive diagnosis fast installation and performing automation functions.
Muting sensors shall be positioned beyond the light curtain in the dangerous area.
From the instant the first of the two muting sensors is cleared.
Muting shall be desabled as soon as the light curtain is cleared and not later than 4 seconds max.
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.
Depending on the variant different machine functions are integrated or can be selected via safe control solutions.
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 timer monitoring the 4 seconds shall be a safety related item.
In normal operation if a light curtain detects an object it causes the safety system to stop any hazardous motion in the hazardous area.
This allows transporting workpieces out of the work area without interrupting the production flow and at the same time monitoring access to the hazard area.
Safety light curtains reliably and cost effectively protect against access into hazardous points and areas.
