WL Circuit Breakers - Siemens

External CubicleBUS Modules
WL Circuit Breaker
• The ZSI module must be the first external
module to be connected, if used.
• If the BDA is connected to the front
interface of the trip unit, the cable must
be no longer than 0.5 m.
LED Display
The LEDs on the external CubicleBUS
modules enable straightforward module
diagnosis and testing. As explained in
Tables 2-11 to 2-13, the internal status
and the communications connection can
be diagnosed to ensure that they have
been wired correctly.
Figure
2-10
DEVICE LED Meaning
Red Internal error in the CubicleBUS module
Yellow CubicleBUS module in test mode
Green Module in operation
Table
2-11
CubicleBUS LED Meaning
Green Connection exists to a different module
Off No other CubicleBUS module detected
Table
2-12
All other LEDs Meaning
Yellow On the input module, this indicates an ON
signal at the corresponding input. With digital
output modules, the output is active when the
contact closed. With analog output modules,
a yellow LED indicates that the full-scale
deflection value has been exceeded by 20%.
Off The LED is off if none of the abovementioned
conditions are present
Table
2-13
If a COM15/COM16 module is available, the external CubicleBUS modules can be integrated in the system by connecting them to the CubicleBUS cables
supplied. The end of the CubicleBUS must be installed with a terminating resistor. The power supply unit can simply be connected via the X3 interface.
WL PROFIBUS/MODBUS Communication and Electronic Accessories
The DEVICE LED indicates the state of the external CubicleBUS module.
The CubicleBUS LEDs on the external CubicleBUS modules indicate whether communication is
taking place with other modules. This enables straightforward diagnosis.
The LEDs indicate whether the outputs are set or the inputs are supplied with 24V DC
and have been activated.
SECTION 2
X8 on the breaker CubicleBUS lines COM15 CubicleBUS lines with RJ45 plugs Terminating resistor Power supply
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