Kuka KR C4 compact - 5.5.7 External EMERGENCY STOP Device; 5.5.8 Enabling Device

36 / 93 Issued: 20.04.2018 Version: Spez KR C4 compact V10
KR C4 compact
 If the Ethernet interface is used, the KUKA safety controller generates a
signal that prevents the higher-level controller from triggering an EMER-
GENCY STOP for the overall system.
5.5.7 External EMERGENCY STOP device
Every operator station that can initiate a robot motion or other potentially haz-
ardous situation must be equipped with an EMERGENCY STOP device. The
system integrator is responsible for ensuring this.
There must always be at least one external EMERGENCY STOP device in-
stalled. This ensures that an EMERGENCY STOP device is available even
when the smartPAD is disconnected.
External EMERGENCY STOP devices are connected via the customer inter-
face. External EMERGENCY STOP devices are not included in the scope of
supply of the industrial robot.
5.5.8 Enabling device
The enabling devices of the industrial robot are the enabling switches on the
smartPAD.
There are 3 enabling switches installed on the smartPAD. The enabling
switches have 3 positions:
 Not pressed
 Center position
 Panic position
In the test modes, the manipulator can only be moved if one of the enabling
switches is held in the central position.
 Releasing the enabling switch triggers a safety stop 2.
 Pressing the enabling switch down fully (panic position) triggers a safety
stop 1.
 It is possible to hold 2 enabling switches in the center position simultane-
ously for up to 15 seconds. This makes it possible to adjust grip from one
enabling switch to another one. If 2 enabling switches are held simultane-
ously in the center position for longer than 15 seconds, this triggers a safe-
ty stop 1.
If an enabling switch malfunctions (e.g. jams in the central position), the indus-
trial robot can be stopped using the following methods:
 Press the enabling switch down fully.
If the Ethernet safety interface is used: In his risk assessment, the
system integrator must take into consideration whether the fact that
switching off the robot controller does not trigger an EMERGENCY
STOP of the overall system could constitute a hazard and, if so, how this haz-
ard can be countered.
Failure to take this into consideration may result in death, injuries or damage
to property.
If a robot controller is switched off, the E-STOP device on
the smartPAD is no longer functional. The user is re-
sponsible for ensuring that the smartPAD is either covered or removed from
the system. This serves to prevent operational and non-operational EMER-
GENCY STOP devices from becoming interchanged.
Failure to observe this precaution may result in death, injuries or damage to
property.