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. Before disconnecting the power supply and the cables, you must first release the cables from the respective strain relief according to the device version.

In the case of the CP39xx-0000, release the power supply cable from the strain relief plate by cutting the cable ties (see Fig. 33).

Disconnecting the power supply and cables 1: — Cable ties on strain relief plate

In the case of the CP39xx-0000 and CP39xx-0010, release all cables from the strain relief rail by following the steps below as shown in fig. 34:

Sever the cable ties.
Loosen the Torx TX20 screw of the strain relief rail (section A).
Rotate the strain relief rail by 180° to the left (section B).

Disconnecting the power supply and cables

Proceed as follows to disconnect the power supply and lines:

1. Shut down the control panel.

2. Disconnect the control panel from the external 24 V power supply.

3. Loosen the screw connection between the voltage socket and the voltage connector.

4. Remove the voltage connector from the voltage socket.

5. Make a note of the wiring of all data transmission cables if you want to restore the cabling with another device.

6. Disconnect all data transfer cables from the control panel.

7. Finally, disconnect the ground connection.

You have disconnected the power supply and the cables.