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 override.
Safety light curtains the xpslcmut1160 muting safety module is an acce ssory device used to provide a safety rated muting function in conjunction with safety light curtain.
Open or 10 v or more up to the power voltage.
There is no muting override in this example.
Determination of required pl plr for each safety function.
A safety light curtain shields a hazardous area for people s access.
With a muting light screen access to a hazardous area is temporarily disabled muting allowing products to enter the hazardous area.
Specification of characteristics of each function 3.
Muting input 1 2 override input.
Open or 0 to 3 v short circuit current.
10 to 30 v off voltage.
Muting shall be desabled as soon as the light curtain is cleared and not later than 4 seconds max.
Edm input wait input reset input muting input 1 2 override input.
Gl r series safety light curtains offers a robust solution for optimal levels of safety.
Risk assessment iso 12100 1.
Identification of safety functions 2.
We have installed bypass keys on our press light curtains because someone realized that if an operator got caught in a die they would be standing in the light curtain.
Offering seven different predefined muting configuration options including bypass mute dependent override mute enable and mute cycle time extensions for l style cell exit application the safety light curtain provides versatile performance for diverse application requirements.
0 to 3 v off voltage.
10 ma with edm input only when using an npn output cable.
This post will help clarify the difference between the two so the correct safety light curtain functionality is chosen and the machine runs safely.
If the press was from 0 180 deg you would not be able to reverse the ram direction with the light curtain blocked.
In normal operation if a light curtain detects an object it causes the safety system to stop any hazardous motion in the hazardous area.
Setup of a muting light curtain.
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.
Muting is defined as bypassing the protective function on safety related control system such as a safety light curtain during a pre determined operation of a machine.
The terms muting and blanking are frequently used incorrectly.
The timer monitoring the 4 seconds shall be a safety related item.
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.
