3
1 Preliminary notes
You will find instructions, technical data, approvals and further information using
the QR code on the unit / packaging or at
1.1 Symbols used
Instruction
Reaction, result
Cross-reference
LED on
LED off
LED flashes
Important note
Non-compliance can result in malfunction or interference
Information
Supplementary note
1.2 Warnings used
WARNING
Warning of serious personal injury
w
Death or serious irreversible injuries may result.
2 Safety instructions
• The unit described can be installed as a subcomponent in a safety-related
system.
– The operator is responsible for the safety-related system.
– The system architect undertakes to perform a risk assessment and to create
documentation in accordance with legal and normative requirements to be
provided to the operator and user of the system. This documentation must
contain all necessary information and safety instructions for the operator,
the user and, if applicable, for any service personnel authorised by the
architect of the system.
