Wire-hook switch S: Its switching status is signalled by function STATUS
and can be used in the engineering. After delivery, the switch is open.
For closing, release the locking screw, withdraw the controller module from the
housing, close the Wire-hook switch. Insert the unit and lock it with the
screw.
Wire-hook switch DP: The bus termination resistor can be activated by 2
S.I.L.
switches (DP) in KS98. Both S.I.L. switches must always be open or closed
(terminating resistor active).
Wire-hook switch CAN: for bus terminating resistor r see page36
a
Ensure tightness!
l
Caution! The instrument contains electrostatically sensitive components.
6 Electrical connections
6.1
Safety hints
a
Following the enclosed safety hints 9499 047 07101 is indispensable! The instrument insulation meets
standard EN 61 010-1 (VDE 0411-1) with contamination degree 2, overvoltage category III, operating
voltage range 300 V and protection class I.
a
With horizontal installation, the following rule is applicable additionally: with the instrument module
withdrawn, a facility which prevents conducting parts from dropping into the open housing must be
provided.
a
If the unit is switched to off-line, the outputs keep their status from the time of switch-over!!!
6.2 Electromagnetic compatibility
European guide line 89/336/EEC. The following European generic standards are met:
Electromagnetic radiation: EN 50081-2 and Electromagnetic immunity: EN 50082-2. The unit is suitable for use in
industrial areas (in residential areas, RF interference may occur). The electromagnetic radiation can be reduced
decisively by installing the unit in a grounded metal switch cabinet.
6.3 Measurement earth (for grounding interferences)
a
If outside interference voltages act on the instrument, functional troubles may be caused
(concerns also high-frequency interferences). For grounding the interference voltages and ensuring the
electromagnetic immunity, a measurement earth must be connected. Terminal A 11 must be connected to
ground potential by means of a short cable (approx. 20 cm, e.g. to switch cabinet ground)! This cable must
be kept separate from mains cables.
6.4 Störschutzbeschaltung
Load current free connections between the ground potentials must be realized so that they are suitable
both for the low-frequency range (safety of persons, etc.) and the high-frequency range (good EMC valu
-
es).
The connections must be made with low impedance. All metal grounds of the components installed in the cabinet Ü
or in the cabinet door * must be screwed directly to the sheet-metal grounding plate to ensure good and durable
contact. In particular, this applies to earthing rails ä, protective earth rail #, mounting
Electrical connections 9499-040-44311
Safety hints 6
CAN
S
DP