Beckhoff CP39-14-0010 Series, Руководство пользователя

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Commissioning
CP39xx-14xx-0010 33 Version: 1.1
4.3 Connecting the Control Panel
CAUTION
Risk of electric shock
Dangerous touch voltages can lead to electric shock. To avoid electric shock, observe the following:
• Never connect or disconnect the device cables during a thunderstorm.
• Provide protective earthing for handling the device.
To prepare the Control Panel for operation, you have to connect it. The first step is to ground the device.
Then you can connect the cables and the power supply.
An external power supply unit is required to supply 24 V DC (-15 %/+20 %) for operating the device.
Connect the Control Panel according to EN 60204-1:2006 PELV / Protective Extra Low Voltage.
• The protective conductor (protective earth, PE) and the "0 V" conductor of the voltage source must be
at the same potential.
• Standard EN 60204-1:2006, section 6.4.1:b stipulates that one side of the circuit, or a point of the
energy source for this circuit must be connected to the protective conductor system.
Devices connected to the Control Panel with their own power supply must have the same potential for the
PE and "0 V" conductors as the Control Panel (no potential difference).