Siemens SINAMICS G120 - Safe Stop 1 (SS1) and Safe Brake Control (SBC)

8.5.3 Safe Stop 1 (SS1) and Safe Brake Control (SBC)
The response time of the SS1 function is the time between selecting the SS1 function and the
STO function becoming active.
Response times when selected via PROFIsafe
00
5HFHLYH352),VDIH
WHOHJUDP
6HOHFW66
66LVDFWLYH
672LVDFWLYH
66UHVSRQVHWLPH
2XWSXW
6%&UHVSRQVHWLPH
0RWRUKROGLQJEUDNHLVWRSHQ
6SHHG
%UDNHFORVLQJ
WLPH
7
W
W
W
W
6DIH%UDNH5HOD\
W
W
W
Figure 8-3 Response times when selected via PROFIsafe
Table 8-6 Response times when using the basic functions
Function Selection
via
Response Response time
Worst case for a fault-free in‐
verter
Worst case for an inverter fault
SS1 PROFIBUS STO is ac‐
tive
14 ms + T
2)
14 ms + T
2)
PROFINET 14 ms + T
2)
+ bus cycle time
1)
14 ms + T
2)
+ bus cycle time
1)
SBC PROFIBUS Signal
change at
the output
of the Safe
Brake Relay
16 ms + T
2)
30 ms + T
2)
PROFINET 16 ms + T
2)
+ bus cycle time
1)
30 ms + T
2)
+ bus cycle time
1)
1)
Bus cycle time: Time for cyclic data exchange via PROFINET
2)
T = p9652
System properties
8.5 Response times after selection
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
376 Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD