KEYENCE GL-RHG Series - Manual (Page 38)

2-5 Temporary Suspension of Safety Function
2-14 GL-RHG-M-NO2-E
Fu
nct
ion
s and
Feat
ures
2
 Explanation
Sensor A2
Safety zone Hazardous zone
Receiver
Beam
axis
Transmitter
GL-RHG
Workpiece
Movement
Sensor B2
Sensor B1
Sensor A1
V
(1) The workpiece is approaching the
protective zone but the GL-RHG
does not go into the muted condi-
tion because all of the sensors are
OFF. At this point, the GL-RHG
continues normal operation and the
OSSD goes OFF if the GL-RHG
gets interrupted.
(2) The workpiece interrupts the
beam of sensor A1, and turns ON
the output. However, the GL-RHG
still continues normal operation.
Sensor A2
Safety zone Hazardous zone
Receiver
Beam
axis
Transmitter
GL-RHG
Workpiece
Movement
Sensor B2
Sensor B1
Sensor A1
V