Connecting the control panel, Connecting cables, Earthing measures – BECKHOFF CP66xx User Manual
Page 14
Installation Instructions
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!
Mains plug
Attention
The mains plug of the Control Panel must be disconnected!
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!
Connecting cables
The connections are located at the rear of the Control Panel and are
documented in the
section.
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.
Earthing measures
Earthing measures
Earthing connections dissipate interference from external power supply
cables, signal cables or cables.
Connect the earth point on the Control Panel housing to the central
earthing point with a low resistance connection. The earthing connection is
located at the rear of the housing (see photograph on the left).
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CP66xx