KEYENCE GL-RHG Series - Manual (Page 44)

2-5 Temporary Suspension of Safety Function
2-20 GL-RHG-M-NO2-E
Fu
nct
ion
s and
Feat
ures
2
Override function
During normal operation, the OSSD goes to an OFF state if the muting function is deactivated and an
interruption remains in the protective zone of the GL-RHG. The OSSD OFF state will remain until the
obstruction is removed.
The Override Function allows a temporary manual suspension of the GL-RHG safety functions.
This makes it possible to remove the obstruction remaining in the protective zone of the GL-RHG.
(Machine is able to be manually operated on a temporary basis because the safety function of the
GL-RHG is temporarily suspended.)
See
"Functions" (page 2-4) for the information of wiring system and cable type to activate this function.
DANGER
• The override function allows a temporary manual suspension of the GL-RHG safety
functions. Thus, in order to ensure safety while the override function is activated,
additional safety measures are required for the entire machine system on which the
GL-RHG is installed.
• The devices, the installation of those devices, and the procedures to activate the override
function must fulfill the conditions specified in this user's manual as well as the
requirements of the laws, rules, regulations, and standards in the country or region in
which the GL-RHG and those devices are used. Failure to follow this warning may result
in significant harm to the machine operators, including serious injury or death.
• The override function allows a temporary manual suspension of the GL-RHG safety
functions. Manual operation devices are required to activate the override function. When
installing the devices to activate the override function, the devices must be installed so
that the whole hazardous zone can be checked by responsible personnel and that the
device operators are not in the hazardous zone.
• Be sure to confirm that there is nobody in the hazardous zone, before the override is
activated. Failure to follow this warning may result in significant harm to the machine
operators, including serious injury or death.
Sensor A1
Safety zone Hazard zone
Receiver
Reflector
Reflector Sensor A2
Traveling direction
Beam axis
Transmitter
GL-RHG
Workpiece