EUCHNER EKS FSA with Profibus-DP Interface - Manual (Page 18)

Manual EKS Electronic-Key Adapter Profibus-DP
6.2 Connection of power supply
(For information on pin assignment see section 4.3.2 Plug-in screw terminals for power supply)
It is imperative that the following points are observed:
f The connections must be made as appropriate to maintain EMC performance.
f A power supply of suitable EMC performance must be used for the power supply.
f Conductor cross-section maximum 1.5 mm².
f Tighten the terminal screws on the plug to 0.22 Nm.
6.3 Connection of function earth
The function earth is connected via terminal 3 on the plug-in screw terminals for the power supply. This
connection is electrically connected internally to the housing of the Electronic-Key adapter.
Information!
The function earth must be connected to PE!
6.4 Connection of the switched outputs (for EKS FSA only)
Warning!
Incorrect connection or errors in the safety-related integration of the EKS FSA can lead to fatal injury.
For this reason, observe the following safety aspects:
f It is not possible to generate a safe signal by using only the switched outputs LA1/LA2 and
LB1/LB2. Safe, downstream evaluation is always necessary (e. g. using a safety relay). Use of the
switched output LB1/LB2 as an alternative to the data line is optional.
f The safe evaluation must always be dual-channel. For this purpose, there are two alternatives:
1. Evaluation of output LA1/LA2 as channel LA together with an evaluation of the data line as
channel LB (recommended)
2. Evaluation of output LA1/LA2 as channel LA together with the output LB1/LB2 as channel LB
f Integrate
the EKS FSA as defined in the following connection examples from EUCHNER.
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