22
8.1 Automatic operation
If the safety light curtains are used in the automatic mode, monitored start is not
possible�
The safety light curtains automatically return to operation with clear protected
area, the outputs (OSSDs) are activated�
Verify if this is compatible with your machine�
In the automatic mode the OSSD1 and OSSD2 outputs follow the status of the
safety light curtains:
Protected area clear
Outputs = active logic "1"
Protected area interrupted
Outputs = deactivated logic "0"
8.2 Manual operation
Operation in the manual mode (Start/Restart Interlock activated) is always
necessary when passage to a hazardous area is to be monitored (persons can be
present in the hazardous area after accessing the protected area without being
detected)�
The start/restart button has to be outside the hazardous area� It has to be installed
so that the hazardous area and access can be clearly seen� It must not be
possible to activate the start/restart button from within the hazardous area�
In the manual mode the safety light curtains comply with the function as
"trip device" to IEC 61496� Non-compliance with this standard can lead to a
hazard for people�
The OSSD1 and OSSD2 safety outputs are activated when the protected area
is clear and the restart command is entered via a start button or via a respective
pulse on input K1_K2/restart pin 4�
If the safety light curtains are released by a person or an object, a restart
command (24 V on pin 4) has to be released� Pulse duration > 100 ms�
