Siemens SINUMERIK 840D Description Of Functions page 66

3 Safety-Related Functions
3.1 Basic mechanisms of SI functions
External
circuitry
(Initiation via
PLC user program)
SGE assignment without SPL logic
SGE assignment with SPL logic
(reduced wiring effort)
Terminal 663
Axis 1, module 1
Terminal 663
Axis 2, module 2
Terminal 663
Axis 3, axis 4
module 3
AS1
AS1
+24 V
AS1
Fig. 3-6 Testing the shutdown paths (NCK monitoring channel) for several axes
3-66
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
E (NCK)
Assignment
and linking of
machine data
A (PLC)
Test stop
selection
A (PLC)
Comparator
internal interface
DPR
Assignment
variable
and linking of
M bzw. Bit (PLC)
machine data
Dual Port RAM
(Initiation via
or DB10
PLC user program)
Test stop
selection
Comparator
Internal interface
External
A (NCK)
circuitry
Pulse
disabling via
terminal 663
AND-linking
via MDs
External
E (NCK)
circuitry
Checkback
signals
AS2
AS2
AS2
Terminals of
SIMODRIVE 611
drive modules
SGE
Test stop selection
Axis 1
Test stop selection
Axis 2
Test stop selection
Axis 3
Test stop selection
Axis 4
SGE assigned via
OUTSI(P) variable
SGE
Test stop selection
Axis 1
Test stop selection
Axis 2
Test stop selection
Axis 3
Test stop selection
Axis 4
SGA
Enable pulses
Axis 1
Enable pulses
Axis 2
Enable pulses
Axis 3
&
Enable pulses
Axis 4
SGE
Pulses disabled status
Axis 1
Pulses disabled status
Axis 2
Pulses disabled status
Axis 3
Pulses disabled status
Axis 4
ZWDYN_05.DSF
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11.03