Siemens SINAMICS G120 - Page 377

Table 8-7 Response times when using the extended 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
54 ms + T
2)
56 ms + T
2)
PROFINET 54 ms + T
2)
+ bus cycle time
1)
56 ms + T
2)
+ bus cycle time
1)
SBC PROFIBUS Signal
change at
the output
of the Safe
Brake Relay
56 ms + T
2)
62 ms + T
2)
PROFINET 56 ms + T
2)
+ bus cycle time
1)
62 ms + T
2)
+ bus cycle time
1)
1)
Bus cycle time: Time for cyclic data exchange via PROFINET
2)
T depends on how safety function SS1 is set:
● SS1 with braking ramp monitoring: T = p9582 + time to brake down to standstill detection
● SS1 with acceleration monitoring: T = the lower of the two times:
– p9556
– Time to brake down to standstill detection
Response times when selected via a fail-safe digital input of the Control Unit
00
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66LVDFWLYH
6HOHFW66
672LVDFWLYH
66UHVSRQVHWLPH
2XWSXW
6%&UHVSRQVHWLPH
0RWRUKROGLQJEUDNHLVWRSHQ
6SHHG
%UDNHFORVLQJ
WLPH
WB(
7
W
W
W
W
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W
W
W
Figure 8-4 Response times when selected via a fail-safe digital input F-DI
System properties
8.5 Response times after selection
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD 377