Beckhoff CP29 -2 -0000 Series, Manual

Page: 22 / 31

Commissioning
CP29xx-2xxx-0000 22 Version: 1.2
4.3.3 Connecting cables and power supply
NOTE
Incorrect connection procedure
Incorrect procedure when connecting the cables and the power supply can cause hardware damage.
• Follow the documented procedure for connecting the cables and the power supply.
• Always connect the cables first and only then switch on the power supply.
• Please read the documentation for the external devices prior to connecting them.
Connecting cables
The connections are located on the back of the housing and are documented in Chapter 3.1 Structure [ } 9] .
Make sure that you first ground the Panel (see Chapter 4.2.2 Grounding the Control Panel [
}
21] ) and then
plug in all data transmission cables.
Connecting the power supply
Cables with a maximum cable cross-section of 1.5 mm
2
must be used for connecting the power supply. To
achieve the lowest possible voltage drop on the supply cable, we recommend connecting the maximum
possible cross-section. In the case of longer distances between the voltage source and the Panel, take into
account the voltage drop in relation to the cable cross-section and voltage fluctuations in your supply
voltage, so that is secured that the voltage doesn´t fall under 22 V at the power supply.
Proceed as follows to connect the 24 V
DC
power supply unit:
1. Check the correct voltage of your external power supply.
2. Plug the voltage cable into the voltage socket on the Panel.
3. Connect the Panel to your external 24 V power supply.
4. Switch on the 24 V power supply.