Bosch rexroth ctrlX SAFETY SafeMotion - Page 92

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ctrlX SAFETY "SafeMotion"
Transition functions
Bosch Rexroth AG
R911404905,
Edition 02
Table 14: Configurable variants of the transition function Safe stop 1 (SS1)
No. Monitoring Execution SS1 Operation
mode transi-
tions to stand-
still
Execu-
tion SMD
Depends on
measuring
system used
Maximum safety
level
1 SS1, standstill-
prioritized with
drive-con-
trolled transi-
tion
Standstill-pri-
oritized (SS1–
r)
Drive-con-
trolled
Based on
actual
velocity
Yes Category 3, PL d
according to
EN ISO 13849-1 or
SIL 2 according to
EN 62061
2a SS1, standstill-
prioritized with
NC-controlled
transition
(with trend
monitoring)
NC-controlled Trend
moni-
toring
2b SS1, standstill-
prioritized with
NC-controlled
transition
(based on
actual velocity)
Based on
actual
velocity
3 SS1, time-pri-
oritized with
drive-con-
trolled transi-
tion
Time-priori-
tized (SS1–t)
Drive-con-
trolled
- No Category 4, PL e
according to
EN ISO 13849-1
or up to SIL 3
according to
EN 62061
(The safety level
is determined by
the time-prioritized
monitoring.)
3
(+1)
SS1, time- and
standstill-pri-
oritized with
drive-con-
trolled transi-
tion
Time-
*1)
&
standstill-pri-
oritized (SS1–t
and SS1–r)
Based on
actual
velocity
Yes
4 SS1, time-pri-
oritized with
NC-controlled
transition
Time-priori-
tized (SS1–t)
NC-controlled - No
4
(+2a)
SS1, time- and
standstill-pri-
oritized with
NC-controlled
transition
(with trend
monitoring)
Time-
*1)
&
standstill-pri-
oritized (SS1–t
and SS1–r)
Trend
moni-
toring
Yes
4
(+2b
)
SS1, time- and
standstill-pri-
oritized with
NC-controlled
transition
(based on
actual velocity)
Based on
actual
velocity
Legend:
*1) monitoring function of higher priority