KEYENCE SL-V Series - Manual (Page 69)

2-11 Temporary Suspension of Safety Function
2-45
Fu
nct
ion
s and
Feat
ures
2
SL-V-M-NO2-E
The OSSD goes to an OFF state if the muting function is deactivated and an interruption remains in the
detection zone of the SL-V. The OSSD OFF state will remain until the obstruction is removed.
The override function allows a temporary manual suspension of the SL-V safety functions.
This makes it possible to remove the obstruction remaining in the detection zone of the SL-V. (Machine is
able to be manually operated on a temporary basis because the safety function of the SL-V is temporarily
suspended.)
• The override function allows a temporary manual suspension of the SL-V safety func-
tions.Thus, in order to ensure safety while the override function is activated, additional
safety measures are required for the whole machine system on which the SL-V 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 require-
ments of the laws, rules, regulations, and standards in the country or region in which the
SL-V 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 SL-V 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 acti-
vated. Failure to follow this warning may result in significant harm to the machine operators,
including serious injury or death.
• The installation of the indication for override may be required by the laws, rules, regulations,
and standards in the country or region in which the SL-V is used if you apply the override
function. It depends on the machine application and/or the result of your risk assessment. If
it is necessary for you to provide the indication for override, you must fulfill the requirements
because you are fully responsible for installation of the indication for override.
• Only the responsible personnel must be allowed use or activation of the override function.
Override function
Sensor A2
Sensor A1
Reflector
Reflector
SL-V
Hazard zone
Traveling direction
Beam axis
Transmitter
Receiver
Safety zone
Workpiece
Danger
Cable
Self-diagnosis
Series Connection
Interlock
AUX
EDM
Wait
State Information
Alert
Clear/Blocked
Suspension
Fixed
Reduced
Monitoring