Connecting Cables And Power Supply - Beckhoff CP77 Series Manual

Commissioning
4.3.2

Connecting cables and power supply

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.
Connecting cables
Make sure that you first ground the panel (see chapter 4.3.1 Grounding the panel PC [} 21]) and then plug in
all data transmission cables.
Connect power cable
Cables with a maximum cable cross-section of 1.5 mm
long supply lines, use 1.5 mm
least 22 V at the power supply plug of the panel PC, so that the panel remains switched on during voltage
fluctuations.
Proceed as follows to connect the 24 V
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.
22
NOTICE
2
cables to achieve a low voltage drop on the supply line. There should be at
power supply unit:
DC
Version: 3.4
2
can be used for connecting the power supply. For
CP77xx