N2: Emergency stop
11.5 Emergency stop acknowledgement
Basic Functions
822 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
11.5 Emergency stop acknowledgement
The emergency stop control element may only be reset as a result of manual manipulation of the emergency stop
control element according to EN 418.
Resetting of the emergency stop control element alone must not trigger a restart command.
A machine restart must be impossible until all of the actuated emergency stop control elements have been
deliberately reset by hand.
Emergency stop acknowledgement
The EMERGENCY STOP state is only reset if the interface signal:DB10 DBX56.2 (acknowledge EMERGENCY
STOP) is set followed by the interface signal:DB11, ... DBX0.7 (mode group reset).
Hence it can be noted that the interface signal DB10 DBX56.2 (acknowledge emergency stop) and the interface
signal DB21, ... DBX7.7 (Reset) together are set at least for so long, till the interface signal DB10
DBX106.1(emergency stop active) is reset.
Figure 11-1 Resetting the emergency stop state
Note
The emergency stop state cannot be reset with the interface signal DB21, ... DBX7.7 (Reset)
alone.
(1) DB10 DBX56.2 (acknowledge emergency stop) is inoperative
(2) DB21, ... DBX7.7 (Reset) is inoperative
(3) DB10 DBX56.2 and DB21, ... DBX7.7 reset DB10 DBX106.1(emergency stop active)
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