Operating instructions

6 BAL SX302 ETH EN 3.1
Grounding All devices are equipped with a metal housing. They comply with safety class I and
require a protective earth connection. The connecting cable for the operating
voltage must contain a protective earth wire of a sufficient cross section (DIN VDE
0106 part 1, DIN VDE 0411 part 1).
EMC measures The devices comply with the EU Directive 89/336/EEC (EMC Directive) and
provide the required interference immunity. Observe the following when connecting
the operating voltage and data cables:
 Use shielded data cables.
 The data and operating voltage cables must be laid separately. They may not
be laid together with heavy-current cables or other interference-producing
cables.
 The cable thickness must be properly assessed (DIN VDE 0100 Part 540).
 The cable lengths inside the units are to be kept as short as possible to
prevent interference. This applies especially to unshielded operating voltage
cables. Shielded cables are also to be kept short due to any interference which
might be emitted by the shielding.
 Neither excessively long cables nor cable loops may be placed inside the
units.
 The connection of the cable shielding to the functional ground (PE) must be as
short and low-impedance as possible. It should be made directly to the
mounting plate over a large area with a conductive clip:
control
conductive clamp
mouting plate
data line terminals
bare
metal surface
 The cable shielding is to be connected at both cable ends. If equipotential
bonding currents are expected due to the cable arrangement, electrical
isolation is to be performed on one side. In this case, capacitive connection
(approx. 0.1µF/600 V AC) of the shielding on the isolated side must occur.
Disposal Units or unit parts which are no longer needed are to be disposed of in accordance
with the regulations in effect in your country.