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.
Light curtain muting.
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.
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.
Muting light curtain monitoring relays allow the automatic temporary suspension of the safety function if certain conditions are met.
This post will help clarify the difference between the two so the correct safety light curtain functionality is chosen and the machine runs safely.
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.
The timer monitoring the 4 seconds shall be a safety related item.
In material handling applications material is allowed to pass through the protective field without shutting down the machine.
When enabled a function block is purple with a 3 second count down timer.
In normal operation if a light curtain detects an object it causes the safety system to stop any hazardous motion in the hazardous area.
Next lets test the mute function.
Gl r series safety light curtains offers a robust solution for optimal levels of safety.
In addition to muting these modules monitor up to three light curtains with presence.
Safety light curtains reliably and cost effectively protect against access into hazardous points and areas.
Muting shall be desabled as soon as the light curtain is cleared and not later than 4 seconds max.
First we test the safety light curtain and latch reset with mute off.
Depending on the variant different machine functions are integrated or can be selected via safe control solutions.
It is ideal for applications that require high resolutions due to a short safety distance.
Also the status output for the mute light changes to green.
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.
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.