Light Curtain Muting Methods

Muting sensors shall be positioned beyond the light curtain in the dangerous area.

Light curtain muting methods.

Also the status output for the mute light changes to green. 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 first method involves using the light curtain controller to initiate the muting and generally results in disabling the sensing field. When used with a safety light curtain muting enables the safety function to be temporarily.

Muting shall be desabled as soon as the light curtain is cleared and not later than 4 seconds max. 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. The terms muting and blanking are frequently used incorrectly. When enabled a function block is purple with a 3 second count down timer.

The value of light curtains is greater than many realize having functions and features relevant for machine safety factory control and productivity. From the instant the first of the two muting sensors is cleared. First we test the safety light curtain and latch reset with mute off. Four common machine safeguarding flaws and how to avoid them.

This post will help clarify the difference between the two so the correct safety light curtain functionality is chosen and the machine runs safely. 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 and light curtains. The second uses control reliable auxiliary circuits or machine controller circuits and would result in the bypassing of the light curtain s output signal.

After 3 seconds the status output and mute function turn off. The timer monitoring the 4 seconds shall be a safety related item.