Siemens Sinamics G120 Function Manual page 377

Table 8-7
Function Selection
SS1
SBC
Bus cycle time: Time for cyclic data exchange via PROFINET
1)
T depends on how safety function SS1 is set:
2)
● 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
Figure 8-4
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
Response times when using the extended functions
Response
via
PROFIBUS STO is ac‐
tive
PROFINET
PROFIBUS Signal
change at
PROFINET
the output
of the Safe
Brake Relay
Response times when selected via a fail-safe digital input F-DI
8.5 Response times after selection
Response time
Worst case for a fault-free in‐
verter
54 ms + T
2)
54 ms + T + bus cycle time
2)
56 ms + T
2)
56 ms + T + bus cycle time
2)
System properties
Worst case for an inverter fault
56 ms + T
2)
56 ms + T + bus cycle time
1) 2)
62 ms + T
2)
62 ms + T + bus cycle time
1) 2)
1)
1)
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