Weidmüller maxGUARD - Installation Position and Mounting Distances; Configuring Cross-Connections

22Manual maxGUARD2526740000/02/03.2018
4 Conguration | Installation position and mounting distances
End bracket, end plate, separation plates
The station is xed in the installation position by an end
bracket at either side.
If a maxGUARD station ends with a potential distribution
terminal, the station must be completed with an end plate on
this side in order to ensure IP20 protection.
If cut cross-connectors are used for the main strands, the
maxGUARD station must be completed with end plates on
both sides in order to ensure IP20 protection.
End plates can improve the mechanical stability
of a maxGUARD station.
If cut cross-connectors are used for the load outputs or the
internal signal line, the bare cut edges must be insulated
against short circuits with separation plates.
Separation plates with labelled markers help to
arrange the maxGUARD station more clearly.
4.3 Installation position and mounting
distances
A maxGUARD station can be operated in any installation
position without derating. The mounting distance must be at
least 20mm on all sides.
The minimum permissible conduc-
tor bending radii must be observed.
20
20
Minimum distances for installation
4.4 Conguringcross-connections
All connections between the modules of a maxGUARD sta-
tion are established via cross-connectors. To this end, only
the ZQV4N/x cross-connectors specied in section 3.6 shall
be used. Whenever possible, use uncut cross-connectors in-
sulated on both sides.
The use of different-coloured cross-connectors simplies as-
sembly and enhances the clarity of the maxGUARD station.
Main strand cross-connections
ATTENTION
The product can be destroyed!
If the total current is over 20A, all main strands must each
be equipped with two cross-connectors.
If the total current is below or equal to 20A, the
main strands are adequately equipped with one
cross-connector per main strand.
The main strand connectors of all modules are connected to
the corresponding main strand connectors of a feed-in mod-
ule via cross-connectors.
The cross-connectors for the +24V main strand
and the GND main strand must always use at
least two contacts of the feed-in module.
The main strands must be equipped with continuous cross-
connectors along the entire length of the station. To this end,
50-pole cross-connectors may be cut to the required length.
For maxGUARD stations with a length of up to 60mm, cross-
connectors with a suitable number of poles may be used.
For maxGUARD stations with a length of over 300mm, see
section
4.8.
If cut cross-connectors are used for the main
strands, the maxGUARD station must be com-
pleted with end plates on both sides in order to
ensure IP20 protection.
Use red cross-connectors for the +24V main
strand. Use blue cross-connectors for the GND
main strand.