Safety Faults; Stop Responses - Siemens SINAMICS S120 Function Manual

9.3

Safety faults

9.3.1

Stop responses

Faults with Safety Integrated Extended/Advanced Functions and violation of limits can
initiate the following stop responses:
Table 9- 1 Overview of stop responses
Stop response Triggered ...
STOP A
1)
•
(corresponds to
STO )
2)
•
•
•
•
•
STOP B Examples:
1)
(corresponds to
•
SS1 )
3)
•
•
•
•
•
STOP C
1)
•
(corresponds to
SS2 )
4)
•
•
Safety Integrated
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
For all acknowledgeable
safety faults with pulse
suppression
Subsequent response of
STOP B
Configurable subsequent
stop p9563 for SLS
Configurable subsequent
stop p9566 for SDI
Configurable subsequent
stop p9562 for SLP
Configurable subsequent
stop p9579 for SLA
Standstill tolerance violat-
ed in p9530 (SOS)
Configurable subsequent
stop p9563 for SLS
Configurable subsequent
stop p9566 for SDI
Configurable subsequent
stop p9562 for SLP
Subsequent response of
STOP F
Configurable subsequent
stop p9579 for SLA
Configurable subsequent
stop p9563 for SLS
Configurable subsequent
stop p9566 for SDI
Configurable subsequent
stop p9562 for SLP
Configurable subsequent
stop p9579 for SLA
Action
Immediate pulse suppression
Immediate input of speed
setpoint = 0 and start of timer
t
B .
Once t or n < n has
B act shutdown
expired, STOP A is triggered.
Immediate input of speed
setpoint = 0 and start of timer
t .
C
Once t has elapsed, SOS is
C
selected.
Maintenance
9.3 Safety faults
Effect
Drive coasts down
STOP B with subsequent STOP A.
The drive decelerates along the
OFF3 ramp and then switches to
STOP A.
Note:
For "SS1 with external stop" (SS1E),
braking is not performed along the
OFF3 ramp (see Chapter "Safe
Stop 1 with external stop
(Page 101)")
The drive decelerates along the
OFF3 ramp; SOS is then selected.
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