For this purpose muting sensors are installed on both sides of the light curtain which determine in which cases to activate muting.
Light curtain muting examples.
In addition to muting these modules monitor up to three light curtains with presence.
The timer monitoring the 4 seconds shall be a safety related item.
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.
Muting is the intentional suppression of the protective function of light curtains the light curtain is muted temporarily.
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.
Important this application example is for advanced users and assumes that you are trained and experienced in safety system requirements.
Muting sensors shall be positioned beyond the light curtain in the dangerous area.
First we test the safety light curtain and latch reset with mute off.
Muting shall be desabled as soon as the light curtain is cleared and not later than 4 seconds max.
2 2 example minimum distance calculation for the lock application.
Next lets test the mute function.
Muting light curtain monitoring relays allow the automatic temporary suspension of the safety function if certain conditions are met.
It is not to be confused with blanking or bypassing.
Muting differentiation between humans and machine lock application blanking european version.
From the instant the first of the two muting sensors is cleared.
In material handling applications material is allowed to pass through the protective field without shutting down the machine.
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.
Various types and sizes of.
After 3 seconds the status output and mute function turn off.
Also the status output for the mute light changes to green.
Safety light curtains with muting area monitoring by means of safety light curtains.
As an example muting a light curtain would ignore the light curtain safety function.
The temporary automatic suspension of a safety function during the non hazardous portion of the process machine cycle.
For the transport direction of the workpiece both directions are permitted.
Usually safety light curtains with vertical detection zones.
When enabled a function block is purple with a 3 second count down timer.
