Automatic Operation; Manual Operation - IFM OY Series Original Operating Instructions

8.1 Automatic operation

If the safety light curtains / light grids are used in the automatic mode, monitored
start is not possible.
The safety light curtains / light grids 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 / light grids:
Protected area clear
Protected area interrupted

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 / light grids 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 / light grids are released by a person or an object, a
restart command (24 V on pin 4) has to be released. Pulse duration > 100 ms.
Outputs = active logic "1"
Outputs = deactivated logic "0"
UK
23