ctrlX SAFETY "SafeMotion"
PFH
Encoder
1.5 × 10
-9
1/h
(at a DC of 95%)
Value corresponds to PFH
d
: Probability of dangerous failures
SIL
Encoder
SIL 2 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)
PL
Encoder
Category 3, PL d
Mission Time
Encoder
175,200 h (20 years)
Brake type 0, 1, 2 Brake type encrypted in type code
λ
Brake
40 × 10
-9
1/h
Probability of all failures of the brake, not only the number of
dangerous failures
B
10d
value upon request
“SafeMotion”-compliant Only with SI label SI label to be found on the type plate
Fig. 66: Example of “SI" label on type plate
"Mission Time" and "Proof Test" interval
− 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".
DANGER
Lethal injury and/or property damage caused by varia-
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.
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.
To Next Page
Loading...
