Weidmüller maxGUARD - Extending Control Voltage Distributors

26Manual maxGUARD2526740000/02/03.2018
4 Conguration | Extending control voltage distributors
4.8 Extending control voltage distributors
50-pole cross-connectors can be used to build maxGUARD
stations with a maximum length of 50 grid units (ap-
prox.305mm). By using additional cross-connectors and
passive feed-in modules, a maxGUARD station can be ex-
tended to a length of 150grid units (approx.915mm).
Existing maxGUARD stations can be extended in the same
way. Please note that extending the maxGUARD station will
increase its total current. Always select the type of extension
based on the expected total current in the main strands of
the extended station.
Extensions for total currents of up to 20 A
The main strands and the internal signal line are each
equipped with one cross-connector only.
To extend a main connection channel, place a second cross-
connector in the free shaft of the main connection channel
so that the new and the original cross-connectors are electri-
cally connected. In this way, the new cross-connector will
begin at an active cross-connection socket that is already
connected to the original cross-connector. White markings
on the plastic tabs of the modules indicate the active cross-
connection sockets.
Extension to an active cross-connection socket
Extensions for total currents of over 20 A
The mains strands are each equipped with two cross-con-
nectors. The internal signal line is equipped with only one
cross-connector.
The main strands are extended to an additional passive
feed-in module. This feed-in module should be placed after
50grid units or at the end of the maxGUARD station.
Extension to a passive feed-in module
The cross-connectors of the main strands should be ar-
ranged in such a way that they connect the rst feed-in mod-
ule to the additional feed-in module. Subsequently, the next
cross-connectors at the additional feed-in module can be
inserted as an extension of the main strands.
The cross-connectors for the +24V main strand
and the GND main strand must always use two
contacts of the feed-in module.