Pilz PSEN op4B-S-3-080 - Manual (Page 33)

Operating Manual PSEN op4B Series
29
6.3 Restart
If the beams between the emitter (TX) and receiver (RX) are
interrupted by an opaque object, the OSSD outputs will switch and the
safety contacts will open (“BREAK” operating status).
There are two different ways to restart normal mode (“SAFE” operating
status):
• Automatic reset: After the protected field has been interrupted, the
safety light curtain returns to its normal mode as soon as the
detected object has been removed from the protected field.
• Manual reset: After the protected field has been interrupted, the
safety light curtain does not return to its normal mode until the
object has been removed from the protected field and the restart
button (TEST/RESET button) has been operated for at least 0.5 s.
Timing diagram for manual reset (local or external activation of restart
function)