Bosch rexroth ctrlX SAFETY SafeMotion Applications Manual page 168

ctrlX SAFETY "SafeMotion"
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First use
PFH
Encoder
SIL
Encoder
PL
Encoder
Mission Time
Encoder
Brake type
λ
Brake
B value
10d
"SafeMotion"-compliant
Fig. 66: Example of "SI" label on type plate
"Mission Time" and "Proof Test" interval
−
−
−
−
The velocity of the ACUROⓇlink encoder is recorded at an interval of 1 ms
with a tolerance of ±0.5 %. The resulting tolerance of the actual value for the
velocity has to be taken into account for the risk assessment at the machine!
Third-party motors/optional measuring systems
Third-party motors and optional measuring systems are only supported from
AXS–V–0308.01 in the integrated safety technology in ctrlX DRIVEplus.
Bosch Rexroth AG
1.5 × 10 1/h
-9
(at a DC of 95%)
SIL 2
Category 3, PL d
175,200 h (20 years)
0, 1, 2
40 × 10 1/h
-9
upon request
Only with SI label
The "Mission Time" of all components used has to be observed and com-
plied with. After the "Mission Time" of a component has elapsed, the com-
ponent has to be discarded or replaced. It is not allowed to continue oper-
ating the component!
The drive system ctrlX DRIVE does not monitor or log the "Mission Time".
After the component was discarded ("Mission Time" has elapsed), it has to
be ensured that the component cannot be reused (e.g., by disabling it).
If a component (with valid "Mission Time") is decommissioned, the
"Mission Time" has to be recorded and continued when the component is
commissioned again.
The "Proof Test" has not been specified for Rexroth motors. Therefore, the
"Mission Time" cannot be reset by a "Proof Test".
Lethal injury and/or property damage caused by varia-
DANGER
tions in the position detection
If an ACUROⓇlink encoder is used as safety technology
encoder, the Safe position resolution of the encoder
may be lower than the actual encoder resolution. This
may lead to an undetected positional variation between
detected and actual position with all safety functions of
the safe position. This must be considered in the risk
assessment of the machine.
Value corresponds to PFH : Probability of dangerous failures
d
In conjunction with the ctrlX DRIVE system, the encoders
installed in the motors are suitable for encoder-dependent safety
functions in applications up to the specified Performance Level
(PL)/Safety Integrity Level (SIL)
Brake type encrypted in type code
Probability of all failures of the brake, not only the number of
dangerous failures
SI label to be found on the type plate
R911404905, Edition 02