KBox A-203-sXAL4 – User Guide Preliminary Rev. 0.2
// 36
7/
Starting Up
The KBox A-203-sXAL4 must be only operated with the nominal voltage of 24V DC of type
SELV. For details refer to the chapter 9/ “Technical Specifications”.
7.1.
Connecting to DC Main Power Supply
The DC input connector (Figure 4 and Figure 5, marked X101) is located on the front side of the KBox A-203-sXAL4. The
KBox A-203-sXAL4 will be connected to a DC main power supply via the supplied power plug terminal (see Figure 20)
and corresponding power wires (not included).
Before using your system, become familiar with the system components and check that
everything is connected properly. Following a proper cabling procedure will prevent a false
power-on condition, which could result in unit operational failure.
Also, it is recommended that the last connections attached to the system should be the
power wires!
The KBox A-203-sXAL4 may not be connected to a central DC power supply.
The KBox A-203-sXAL4 must be connected DC mains power supply complying with the SELV
(Safety Extra Low Voltage) requirements of EN 60950-1 standard.
It must be observed that wiring and short-circuit/overcurrent protection is performed
according to the applicable standards, regulations and respect to the electrical specification
of the KBox A-203-sXAL4.
Even when the system is shut down (via the operating system) parts of the system are still
energized.
The disconnecting device (fuse/circuit backer) rating must be in accordance with the wire
cross-section and the rated current of the KBox A-203-sXAL4.
After connecting to power, the KBox A-203-sXAL4 starts up automatically.
The wires used for power connections must be clearly marked (+/-) to ensure that they will
be proper connected to the DC IN connector of the KBox A-203-sXAL4 and to the main power
source, corresponding to signals marked. Refer to Figure 5 and Figure 20.
In addition, the cables must have some form of support so as to minimize the strain on the
unit’s connectors.
To connect the KBox A-203-sXAL4 to a corresponding DC main power supply, please perform the following steps:
1.
Ensure that the DC power source is switched off via a disconnecting device (circuit breaker), in order to ensure
that no power is flowing from the external DC power source during the connection procedure.
2.
Connect the power terminal prepared as described in the subsection 6.2.1 “Cabling” to the DC input connector
(Figure 4 and Figure 5 marked X101) of the KBox A-203-sXAL4. The DC input connector is located on the front side
and is marked “24VDC”.
3.
Connect the other ends of the DC power wires to the connections of the DC main power supply. Pay attention to
the polarity of the connections.
4.
Switch on the disconnecting device (circuit breaker) in order to apply voltage to the terminals of the power wires.
