ctrlX SAFETY "SafeMotion"
Risks
Some safety functions and measures of "SafeMotion" must be taken into
account separately in the risk assessment. Amongst others, this includes the
following risks:
Activation time of enabling control
● The monitoring of the activation time of enabling control becomes inactive
when the value “0” has been set in the parameter “P-0-3290.x.6, SMO: Max-
imum Activation time of enabling control" (x=1...16).
The maximum configurable value of the activation time
of enabling control in the parameter “P-0-3290.x.6,
SMO: Maximum activation time of enabling control" is not limited by Safe-
Motion. The allowed value must be defined for the respective special mode
in the risk assessment. Too high values increase the risk of not being able
to detect a fault in the enabling control early enough (e.g., jamming in the
activated state).
It is possible to do without the monitoring of the activation time, if it is not
common practice to use an enabling signal of an enabling control in an indus-
trial sector and if constant motion does not represent any danger. The machine
manufacturer is responsible for the monitoring of the activation time and their
risk analysis has to show their responsibility. Too long monitoring times cause
hazards, too. The machine manufacturer is obliged to conduct a risk assess-
ment of the application.
Velocity
●
ACUROⓇlink encoder: 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!
●
EnDat–2.2 encoder: The velocity is recorded at an interval of 1 ms with a
tolerance of ±3 %. The resulting tolerance of the actual value for the velocity
has to be taken into account for the risk assessment at the machine!
10.2 First use
10.2.1
Safety instruction
WARNING
Dangerous movements! Danger to life, risk of injury,
serious injury or property damage!
Do not commission the system without having it checked
by a qualified individual!
Before a system with integrated safety technology is
commissioned for the first time, the system must be
checked and approved in documented form by a quali-
fied individual.
Check the danger zone!
− Before commissioning, make sure that nobody is
staying in the danger zone.
−
Check the danger zone and secure it against access
by individuals (e.g., put up warning signs, install bar-
riers or the like).
Observe the applicable laws and local regulations.
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