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.

Connecting cables

The connections are located both in the front and on the top of the industrial PC. They are documented in chapter 3.1 Structure.

Make sure that you first ground the PC (see chapter 4.3.1 Grounding of the industrial PC) and then plug in all data transmission cables.

Observe the cable recommendation from Beckhoff when connecting the EtherCAT P interface:

Alternatively, you can use other cables whose length exceeds 20 cm for this interface.

Connecting the power supply

For the connection of the power supply, you can use cables with a maximum cable cross-section of up to 1.5 mm2 or 2.5 mm2. Use 1.5 mm2 or 2.5 mm2 for long supply lines to achieve a low voltage drop on the supply lines. There should be at least 22 V at the voltage connector of the industrial PC, so that the PC remains switched on during voltage fluctuations.

Make sure that the power supply cables are made of copper. Only use power supply cables with a temperature specification of up to 75 °C.

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

  1. Check the correct voltage of your external power supply.
  2. Plug the power supply cable into the four-pin push-pull power built-in socket of the industrial PC.
  3. Connect the PC to your external 24 V power supply.
  4. Switch on the 24 V power supply.
  5. Measure the voltage on the power supply plug of the PC.