Connecting the industrial PC
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Risk of electric shock Dangerous touch voltages can lead to electric shock. To avoid electric shock, observe the following:
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To prepare the industrial PC for operation, it must be connected. The first step is to ground the device. Then you can connect the cables and the power supply.
In its basic configuration, the industrial PC is equipped with a 100-240 VAC, 50-60 Hz full-range power supply unit. The following ordering options are available:
- C9900-P208: 24 V DC power supply unit, instead of 100-240 V AC full-range power supply unit, occupies one serial interface
- C9900-P209: 24 V DC power supply unit with integrated UPS, instead of 100-240 V AC full-range power supply unit, occupies one serial interface
If you have ordered the PC with one of the ordering options for a 24 V DC power supply unit, wire the industrial PC in the control cabinet in accordance with the EN 60204-1:2006 standard Protective Extra Low Voltage (PELV):
- The PE conductor (protective earth) and the "0 V" conductor of the voltage source must be on the same potential (connected in the control cabinet).
- 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 industrial PC with their own power supply must have the same potential for the PE and "0 V" conductors as the industrial PC (no potential difference).