Connecting cables and power supply

Notice

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.

The connections are located at the rear in the connection section of the device. If you have equipped your device with a Beckhoff mounting arm adapter, you will find the information for accessing the connections in Chapter 3.2 Interface description.

Connecting cables

Make sure that you first ground the panel (see Chapter 4.3.1 Grounding the control panel) and then plug in all data transmission cables.

When connecting the control panel to an industrial PC with UPS output, Beckhoff recommends using this for the connection so that the display is also active in UPS mode. Only one control panel may be connected to the UPS output on the PC.

Connect power cable

Cables with a maximum cable cross-section of 1.5 mm2 can be used for connecting the power supply. For long supply lines, use 1.5 mm2 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 panel remains switched on during voltage fluctuations.

Proceed as follows to connect the 24 VDC power supply unit:

  1. Plug the voltage connector into the voltage socket on the panel.
  2. Connect the panel to your external 24 V power supply.
  3. Switch on the 24 V power supply.