EUCHNER EKS FSA with Profibus-DP Interface - Manual (Page 6)

Manual EKS Electronic-Key Adapter Profibus-DP
The following requirements must be met for usage:
f The data signal (channel LB) and the switched output LA1/LA2 (channel LA) must be polled by a safe
downstream evaluation to suit the risk determined. The data wire (channel LB) is used to supply the
information as to whether or not an Electronic-Key is inserted and which access rights are assigned to the
Electronic-Key. The output LA1/LA2 (channel LA) is used for the redundant supply of the information as to
whether or not an Electronic-Key is inserted (independent of the access rights). The data wire or,
alternatively, the switched output LB1/LB2 can be used as channel LB. The output LB1/LB2 is used to
supply (like LA1/LA2) only the information as to whether or not an Electronic-Key is inserted (independent of
the access rights). The usage of the output LB1/LB2 is optional.
f The control system must check whether the Electronic-Key inserted is authorized to select the operating
mode and whether the access rights on the Electronic-Key permit operation in the operating mode currently
selected.
f The user must select the related operating mode using the control system or another suitable circuit.
f The manufacturer of the system must check which safety level is reached with the overall system and
whether the overall system provides adequate safety against hazards in the intended application.
Information!
The machinery directive 98/37/EC provides information on selection of the operating mode. It is
imperative this information is followed.
When designing machines and using the Electronic-Key adapter, the national and international regulations and
standards specific to the application must be observed, e.g.:
f EN 60204, Safety of machinery. Electrical equipment of machines
f EN 12100-1, Safety of machinery. Basic concepts, general principles for design - part 1: basic terminology,
methodology
f EN 954-1, Safety of machinery. Safety related parts of control systems - part 1: general principles for design
f EN 62061, Safety of machinery. Functional safety of safety-related electrical, electronic and programmable
electronic control systems
f EN ISO 13849-1, Safety of machinery. Safety related parts of control systems - part 1: general principles for
design
Modifications to the electronics of the Electronic-Key adapter and any other changes, especially mechanical
modifications and reworking, are not permissible and will result in the loss of the warranty and exclusion of
liability.
The Electronic-Key adapter must only be employed and used in accordance with
f this manual and
f other documentation referred to in this manual.
The EKS Electronic-Key adapter is not a safety component in the sense of the machinery directive.
Without additional precautions the EKS Electronic-Key adapter must not be used to provide a safety function,
particularly if failure or malfunction of the unit could endanger the safety or health of people in the operating
area of a machine.
1.5 Obligations on the operating organization
The manufacturer and the organization operating the higher-level overall system, e.g. a machine installation, are
responsible for the observance of national and international safety and accident prevention regulations
applicable in the specific case.
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