EUCHNER FSA Light - Manual (Page 6)

Manual EKS Light and Light FSA
1.4 Correct use
As part of a higher-level overall system, the EKS read station is used for access control and monitoring on
control systems or parts of control systems (e.g. of machines). The EKS can be used, for example, as part of an
overall system for checking access rights for operating mode selection. However, it is not permitted to directly
derive the operating mode from the access rights on the Electronic-Key. If the selection of the operating mode is
relevant for safety, this must not be performed by means of the EKS; instead an additional device must be used
to select the operating mode. This is possible via the graphical user interface on the control system, for
example.
Outputs A, B, C, D and strobe plus the switching contact LA1/LA2 switch only if there is an authorized
Electronic-Key in the read station. Outputs A, B, C, D and strobe (channel LB) plus the switching contact
LA1/LA2 (channel LA) must be polled by a safe downstream evaluation to suit the risk determined. The outputs
A, B, C, D and strobe (channel LB) are used to supply the information as to whether the 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 authorized Electronic-Key is inserted
(independent of the access rights).
 The control system must check whether the Electronic-Key placed is authorized to select the operating
mode and whether the access rights on the Electronic-Key permit operation in the operating mode currently
selected.
 The user must select the related operating mode using the control system or another suitable circuit.
 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 2006/42/EC provides information on selection of the operating mode. It is
imperative that this information be followed.
When designing machines and using the read station, the national and international regulations and standards
specific to the application must be observed, e.g.:
 EN 60204, Safety of machinery - Electrical equipment of machines
 EN 12100-1, Safety of machinery - Basic concepts, general principles for design - part 1: basic terminology,
methodology
 EN 62061, Safety of machinery – Functional safety of safety-related electrical, electronic and programmable
electronic control systems
 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 read station 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 read station must only be employed and used in accordance with
 this manual and
 other documentation referred to in this manual.
The EKS read station is not a safety component in the sense of the machinery directive.
Without additional precautions the EKS read station 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.
For applications in which the machinery directive is not applicable (vehicle manufacturing, building services
engineering or similar), the applicable regulations and standards from the respective field must be taken into
account.
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