Connecting the panel pc, Connecting cables, Earthing measures – BECKHOFF CP26xx User Manual
Page 17: 4 connecting the panel pc
Installation
3.4 Connecting the Panel PC
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!
3.4.1 Connecting cables
The connections are located at the bottom of the Panel PC and are documented in the chapter
When connecting cables to the Panel PC, please adhere to the following order:
• Disconnect the Panel PC from the power supply.
• Connect all cables at the Panel PC 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.
3.4.2 Earthing measures
Earthing connections dissipate interference from external power supply cables, signal cables or cables to
peripheral equipment. Establish a low-impedance connection from the earthing point on the Panel PC
housing (see chapter
(Ground)) to the central earthing point on the control cabinet
wall, in which the computer is being installed.
Malfunction possible with missing ground connection
Note
A proper ground connection of the device is absolutely necessary for the correct
function of the touchscreen.
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