Beckhoff CU8801-0000 Operations Instructions download pdf (Page 18)

Mounting

4.2 Connecting the Control Panel

Risk of explosion!

Danger

The Control Panel must never be connected or disconnected in an area that is subject to

explosion hazard!

The mains plug must be disconnected

Attention

Please read the documentation for the external devices prior to connecting them!

During thunderstorms, plug connector must neither be inserted nor removed!

When disconnecting a plug connector, always handle it at the plug. Do not pull the cable!

4.2.1 Connecting cables

The connections are located at the rear of the Control Panel and are documented in the chapter

Interfaces.

When connecting cables to the Control Panel, please adhere to the following order:

• Disconnect the Control Panel from the power supply.

• Connect all cables at the Control Panel and at the devices to be connected.

• Ensure that all screw connections between connectors and sockets are tight!

• Reconnect all devices to the power supply.

4.2.2 Protective Earthing

The low resistance protective earthing connection of the Control Panel is established via the screw

connection, which is located in the connection area.

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Beckhoff CU8801-0000 Operations Instructions Page 18