3WL air circuit breakers
3.5 External CubicleBUS modules
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
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3.5.1.1
Rotary coding switch
With the exception of the configurable output module, all external CubicleBUS modules are
configured using rotary coding switches.
The function indicated by the pointer of the rotary coding switch is active in each case. On
some modules (e.g. digital output module) you must first consider the group selection (e.g.
"1st Module" in the left position; color-coded) and then any additional meaning (e.g. time
delay). The sections for the individual modules contain more detailed information.
In the figure below, the rotary coding switch has been set as follows:
①
0.2 = delay of 0.2 s
②
Switch position left = Module 1
Figure 3-14 Rotary coding switch setting on the CubicleBUS module - Delay time [s]
3.5.1.2
Installing the CubicleBUS modules
The external CubicleBUS modules are snapped onto a standard 35 mm DIN rail in the
switching panel. You must note that the length of the connecting cable of the first module to
the circuit breaker must not exceed 2 m.
For connecting the CubicleBUS modules to each other and to the circuit breaker, only the
pre-assembled cables supplied or separately ordered should to be used. These cables
enable both the communication of the CubicleBUS modules and their 24 V DC supply.
3.5.1.3
Connection of the power supply
The CubicleBUS must be supplied once with 24 V DC along its length. The connections X8:3
and X8:4 or the 4-pin connectors of the external CubicleBUS modules (X3) can be used for
this purpose. The 24 V are transferred over the CubicleBUS cables. The required power of
the 24 V DC supply depends on the configuration of the CubicleBUS. The technical data of
the external CubicleBUS modules is listed in this chapter. The control system of the
CubicleBUS must be connected to a secure power supply because in the event of a short
circuit the system voltage reverts to an unspecified value.
Note
Hot plugging (hot swapping) of CubicleBUS cables/modules is not permitted.