NOTE
Expected frequency for requests of this safety function: 1 / hour and thus 8,760 / year.
3.6.2.4
Preventing unexpected startup following a protective stop with automated reset (SF01.2)
Table 5: Preventing an unexpected start-up
Trigger
Protective field of the safety laser scanner interrupted
Reaction
Robot protective stop
Safe state
Hazardous movement of the robot is stopped
This safety function is mandatory if an automated reset is possible after a protective
stop. The safety laser scanner prevents deactivation (HIGH status) of the protective stop
signal and thus robot startup as long as the protective field of the safety laser scanner
is interrupted.
NOTE
Expected frequency for requests of this safety function: 1 / hour and thus 8,760 / year.
3.6.2.5
Emergency stop (SF99)
This safety function is relevant only for the automated restart function order to ensure
manual operation of the reset pushbutton. The emergency stop signal must be
processed in the safety controller and must not be processed in the robot controller.
•
When the emergency stop function is triggered, the dangerous movements and
states of the robot are ended depending on the application.
•
Aside from triggering the emergency stop function, no other action is needed from
a person to create a safe state
•
No additional dangers are created when ending the dangerous movement and sta‐
tuses
Table 6: Emergency stop
Trigger
Emergency stop pushbutton is actuated
Condition
At any time
Reaction
Robot executes an emergency stop
Safe state
Standstill
If an emergency stop pushbutton is pressed, the safety system triggers an emergency
stop via the corresponding safe inputs on the robot controller. The robot executes an
emergency stop.
NOTE
Expected frequency for requests of the safety function:
365 / year +52 / year = 417 requests in total per year.
3.6.2.6
Preventing unexpected startup following an emergency stop (SF01.3)
A manual reset is necessary after an emergency stop.
Table 7: Preventing unexpected startup following an emergency stop
Trigger
Valid reset sequence
Condition
Emergency stop control switch reset
Reaction
Allows the control to accept a single start command
Safe state
Standstill
3
PRODUCT DESCRIPTION
20
O P E R A T I N G I N S T R U C T I O N S | sBot Stop
8023421/12KF/2019-01-22 | SICK
Subject to change without notice
