Beckhoff CP29 Series, Manual

Page: 35 / 45

Commissioning
CP29xx 35 Version: 3.1
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 all 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 at the connection block on the back of the housing and are documented in
chapter 3.1
Structure [
}
10] .
Make sure that you first ground the Panel (see Chapter 4.3.2 Grounding the Control Panel [ } 34] ) and then
plug in all data transmission cables.
For an Industrial PC with UPS output, we recommend using this for connecting the Control Panel. For CP-
Link 4, we recommend connecting the CU880x transmitter boxes to the UPS output of the PC.
Connecting the power supply
Cables with a maximum cable cross-section of 1.5 mm
2
can be used for connecting the power supply. For
long supply lines, use 1.5 mm
2
cables to achieve a low voltage drop on the supply line. There should be at
least 22 V at the power supply plug of the Control Panel, so that the Control Panel remains switched on
during voltage fluctuations.
Proceed as follows to connect the 24 V
DC
power supply unit:
1. Check the correct voltage of your external power supply.
2. Install the power cable.
3. Plug the voltage connector into the voltage socket on the Panel.
4. Screw the voltage connector to the voltage socket.
5. Connect the Panel to your external 24 V power supply.
6. Switch on the 24 V power supply.
7. Measure the voltage at the power supply plug of the Panel.