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Hardware Installation
2.5 Installation and Wiring of the Module
2.5.1 Connection of the Power Supply Voltage
The power supply voltage can be connected via the +24V connector for the power supply voltage
(X100) or via InRailBus connector (X101)
Attention:
Please note the safety instructions to requirements on the
supply current circuit
(see
page 4).
Attention:
When connecting via the InRailBus (connector X101), it is
not permissible
to feed
through the power supply voltage through the CBX station and to supply it to another
CBX station via the +24V connector. A feed through
of the +24 V power supply voltage can cause damage on the CBX modules!
Figure 5:
CAN-CBX station
Earthing the mounting rail
Note:
Connect the mounting rail to functional earth potential. Please note that the impedance
of the connecting cable has to be kept low.
Functional earth is a current path of low impedance between current circuits and earth, which is
used to increase the interference immunity. It is not intended as protective measure and does not
protect against accidental contact.
Note:
EG-Conformity (see page 52) can only be guaranteed, if the earthing via the mounting
rail is made as described.
Page 14 of 53
Hardware Manual • Doc. No.: C.3071.21 / Rev. 1.5
CAN-CBX-CPU5201