Technical data
  Safety Integrated Functions in 
SINAMICS Drive Systems 
  6.3 Support of SINAMICS Safety Integrated functions by the T(F)-CPU 
Connection of the SINAMICS S120 to the Technology CPU 
Product Information, 09/2011, A5E00480378-04 
189 
Content of the safety data block in the actual value message frame 
Word  Meaning 
1  Safety status word 
2 
3 
Effective absolute set velocity limitation in the drive 
Note: 
This double word must be interconnected with r9733[0]. 
( r9733[0] = p9531[x] * p9533 / p9520 
x is the selected SLS level) 
Table 6- 1  Structure of the safety status word in the safety data block 
Bit  Status  Name of identifier    Interconnection 
in the drive 
0  STO is active  STO_ACTIVE  1-active  r9722.0 
1  SS1 is active  SS1_ACTIVE  1-active  r9722.1 
2  SS2 is active  SS2_ACTIVE  1-active  r9722.2 
3  SOS is selected.  SOS_SELECTED  1-active  r9722.11 
4  SLS is selected.  SLS_SELECTED  0-active  r9720.4 
5  Reserved       
6  Reserved       
7  SSM (n below limit)    1-active  r9722.15 
8  Reserved       
9  Reserved       
10  Reserved       
11  Reserved       
12  Reserved       
13  Reserved       
14  Reserved       
15  An internal event has occurred and at least one new 
event is present in the Safety Fault Buffer 
(see below 
Safety message buffer
) 
INTERNAL_EVENT  1-active  r2139.5 










