
Hardware Installation
CAN-CBX-THERMO
Manual • Doc.-No.: C.3034.21 / Rev. 1.2
Page 27 of 123
4.4.2 Connection of the Power Supply Voltage
The power supply voltage can be supplied via the 24V connector or via the InRailBus.
NOTICE
Read and follow the safety instructions containing the requirements on power supply
current circuits (see page 5)!
NOTICE
The connections for the 24 V power supply are internally connected and must not be
supplied by two independent power sources at the same time!
Fig. 11: Connecting the power supply voltage to the CAN-CBX station
Earthing of the Mounting Rail
NOTICE
The module is connected with the mounting rail via its functional earth contact.
This improves the stability against electromagnetic disturbances.
Thus the mounting rail shall be connected to an appropriate functional earth contact in
the environment or in the installation.
Please note that the impedance of the connection has to be kept low.
The functional earth contact of the module does not ensure electrical safety.