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On Safety
This chapter deals with your own safety and the safety of the equipment users.
b
Please read this chapter carefully before working with the i11S or with the
machine protected by the i11S.
The national/international rules and regulations apply to the installation, commission‐
ing, use and periodic technical inspections of the safety switches, in particular
•
the machinery directive,
•
the safety regulations as well as
•
the work safety regulations/ safety rules.
2.1
Qualified safety personnel
The i11S safety switch must be mounted, installed and commissioned only by qualified
safety personnel. Qualified safety personnel are defined as persons who
•
have undergone the appropriate technical training
and
•
have been instructed by the responsible machine owner in the operation of the
machine and the current valid safety guidelines
and
•
who have access to these operating instructions.
2.2
Applications
Safety switches of the i11S series are electromagnetic switching devices. They lock
guards (without locking device) so that
•
the dangerous state of the machine can only be switched on when the protective
device is closed and locked,
•
a STOP command is triggered if the protective device is opened with the machine
running.
For the control this means that
•
starting is only possible when the protective device is in the closed position and
the dangerous motion should cease before opening the protective device.
Prior to the use of safety switches, a risk assessment must be performed on the
machine.
Important:
The user is responsible for the safe integration of the safety switch in a safe overall
system. For this purpose the overall system must be validated, e.g. in accordance with
EN ISO 13849-2.
If the safety switches are connected in series the Performance Level (PL) may be
reduced due to reduced fault detection, depending on the application (ISO/TR 24119).
2.3
Correct use
The i11S safety switch must be used only as defined in section 2.2 “Applications of
the safety switches”. The safety switch must be used only on the machine where it has
been mounted, installed and initialized by qualified safety personnel in accordance with
these operating instructions.
ON SAFETY
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8027740/1FVF/2022-05-19 | SICK
O P E R A T I N G I N S T R U C T I O N S | i11s
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Subject to change without notice
