Siemens SINAMICS S120 Function Manual page 65

● SSM feedback active
● Safe state
Figure 5-6
● SOS selected
● Internal event (no active safety fault)
Each F-DO supports the interconnection of up to 6 signals by way of indexing (p10042[0...5]
to p10045[0...5]) and their output as logical AND operation.
F-DO features
● Each F-DO with failsafe configuration consisting of two digital outputs plus one digital
● Status parameters r10052/r10053
Function diagrams (refer to List Manual)
● 2853 TM54F (F-DO 0 ... F-DO 3, DI 20 ... DI 23)
● 2856 TM54F Safe State selection
● 2857 TM54F assignment (F-DO 0 ... F-DO 3)
Safety Integrated
Function Manual, (FHS) , 07/2007 Edition, 6SL3097-2AR00-0BP0
The following signals can be requested by means of p10039[0...3] for each drive group
(index 0 corresponds with drive group 1 etc.):
– Power removed (STO active)
– SS1 active
– SS2 active
– SOS active
– SLS active
Safe state selection
The same signals (high-active) of each drive or drive group are logically linked by means
of AND operation. The different signals selected through p10039 are logically linked by
means of OR operation. Result of these logic operations is the "Safe State" for each drive
group.
input for reading back the switching state for forced dormant error detection
Control of the safety functions
5.3 Control by way of TM54F terminals
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