Stop Response Priorities - Siemens SINAMICS S120 Function Manual

9.3.2

Stop response priorities

Table 9- 2 Stop response priorities
Priority classes
Highest priority
.....
...
..
..
Lowest priority
Priorities of stop responses and Extended Functions
Table 9- 3 Priorities of stop responses and Extended Functions
Highest priori-
ty
Stop response/
Extended Function
STOP A
Highest STO STOP A / STO STO
priority
..... SS1 STOP A
... SS2 STOP A
... SS2E STOP A
.. SOS STOP A
Lowest SLS, SLA STOP A
priority
The SOS monitoring function remains active, although the fault response in the event of a fault can no longer be trig-
1)
gered because it is already present.
STOP B is the subsequent stop of STOP F, which is activated after a parameterizable time. STOP F alone does not
2)
have any effect; the active safety function is still present.
The SLS or SLA monitoring function remains active, although the fault response in the event of a fault can no longer be
3)
triggered because it is already present.
SLS or SLA remains active during the braking phase, after which the system switches to SOS.
4)
The table above specifies which stop response / safety function is set if a STOP is triggered
when a safety function is active. The STOPs are arranged here from left to right in
descending order of priority (STOP A-F).
No overall priority is assigned in the individual safety functions. SOS remains active, for
example, even if STO is requested. The safety functions that cause the drive to decelerate
(SS1, SS2) are specified from top to bottom in descending order of priority.
Safety Integrated
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
...
STOP B STOP C
STO
STOP B / SS1 SS1
STOP B STOP C/SS2
STOP B STOP C/SS2
STOP B SOS
1) 1)
STOP B STOP C
3) 3)
Stop response
STOP A
STOP B
STOP C
STOP D
STOP E
STOP F
... ...
STOP D
STO
SS1
SS2
SS2
SOS
STOP D
4) 4)
Maintenance
9.3 Safety faults
... Lowest
priority
STOP E STOP F
STO STO
SS1 SS1
SS2 SS2/STOP B
SS2 SS2/STOP B
STOP E/SOS STOP B
2)
STOP E STOP B
4) 2)
2)
2)
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