Light Curtain Muting Examples

From the instant the first of the two muting sensors is cleared.

Light curtain muting examples.

Muting differentiation between humans and machine lock application blanking european version. When enabled a function block is purple with a 3 second count down timer. For the transport direction of the workpiece both directions are permitted. Some typical muting applications include but are not limited to.

Also the status output for the mute light changes to green. After 3 seconds the status output and mute function turn off. The temporary automatic suspension of a safety function during the non hazardous portion of the process machine cycle. Important this application example is for advanced users and assumes that you are trained and experienced in safety system requirements.

A brief controlled deactivation of the light curtains muting ensures. Muting sensors shall be positioned beyond the light curtain in the dangerous area. Muting shall be desabled as soon as the light curtain is cleared and not later than 4 seconds max. Various types and sizes of.

Muting is the intentional suppression of the protective function of light curtains the light curtain is muted temporarily. Usually safety light curtains with vertical detection zones. Next lets test the mute function. In normal operation if a light curtain detects an object it causes the safety system to stop any hazardous motion in the hazardous area.

Photoelectric retro reflective sensors are used as muting sensors. 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. Light curtain is violated muting the light curtain using f cpu freeing of workpieces sequential muting with 4 muting sensors 2 sensor pairs is implemented in the application example. If the light curtain is muted then the demand on the light curtain is ignored if the muting sensors and light curtain are broken in the proper order.

The timer monitoring the 4 seconds shall be a safety related item. 2 2 example minimum distance calculation for the lock application. Safety light curtains with muting area monitoring by means of safety light curtains. Muting light curtain monitoring relays allow the automatic temporary suspension of the safety function if certain conditions are met.

In material handling applications material is allowed to pass through the protective field without shutting down the machine. It is not to be confused with blanking or bypassing. As an example muting a light curtain would ignore the light curtain safety function.