Disconnecting the power supply and cables

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.

Notice

Hardware damage due to power supply

Disconnecting the CP-Link 4 connection while the transmitter box power supply is switched on may cause damage to the transmitter box.

  • Switch off the power supply to the CU8803 transmitter box before disconnecting the CP-Link 4 connection.

Before disassembling the control panel, disconnect the power supply and the cables. To do this, first gain access to the interfaces in the connection compartment of the control panel (see section 3.2 Interface description).

To disconnect the power supply and cables, follow the steps below:

1. Shut down the control panel.
2. Disconnect the control panel from the external 24 V power supply.
3. Pull the power supply plug out of the power supply socket.
4. Make a note of the wiring configuration, if you wish to restore it with another device.
5. Disconnect all data transfer cables from the control panel.
6. Finally, disconnect the ground connection.
You have disconnected the cables and the power supply from the device.