EUCHNER Electronic-Key Adapter with serial Interface - Manual (Page 12)

Manual EKS Electronic-Key Adapter serial
088796-02-03/05 Subject to technical modifications Page 12/24
6 Electrical connection
Electrical connection may only be performed by authorized personnel trained in EMC and with the
device and wiring isolated.
For use and operation as per the requirements, a power supply for use in class 2 circuits must
be used.
The Electronic-Key adapter is only allowed to be connected if it is electrically isolated.
Otherwise the Electronic-Key adapter may be damaged.
If connected incorrectly, the Electronic-Key adapter may be damaged.
Observe electrical characteristics and pin assignment (see page 8 chapter 4.2 Technical data,
Electronic-Key adapter).
All the electrical connections must either be isolated from the mains supply by a safety transformer
according to IEC/EN 61558-2-6 with limited output voltage in the event of a fault, or by other equivalent
isolation measures.
When installing connections, the operating organization must ensure compliance with the EMC safety
requirements in accordance with EN 55011 and EN 61000-6-2.
The equipotential bonding system of the machine installation must comply with EN 60204-1, chapter 8,
Potentialausgleich (Equipotential bonding).
Do not lay connection cables in the immediate vicinity of sources of interference.
6.1 Connection of power supply
(For information on pin assignment see page 9 chapter 4.3.2 Power supply )
It is imperative that the following points are observed:
The connections must be made as appropriate to maintain EMC performance.
A power supply of suitable EMC performance must be used for the power supply.
Conductor cross-section maximum 1.5 mm².
Tighten the terminal screws on the plug to 0.22 Nm.
6.2 Connection of function earth
The function earth must be electrically connected via the interface cable screen and the electrically conductive
connector housing to the Electronic-Key adapter housing.
The function earth must be connected to PE!