Beckhoff CP63xx User Manual download pdf (Page 15)

Installation Instructions

Connecting Power Supply

The external wiring consists of the connection of the power supply, the

battery pack (optional) and the connection of customised components for

shutting down the PC.

Cable Cross Sections

Note cable cross sections,

avoid voltage drop!

For the connection of the power supply, wiring with a cable-cross-section

of 1.5 mm

must be used.

With bigger distances between voltage source and PC, you take the

voltage drop as a function of the cable-cross-section as well as voltage

fluctuations of your distribution voltage into account, so that is secured that

the voltage doesn't fall under 22 V at the power supply.

Insert Fuse The power supply must be protected with maximum 16 A.

PC_ON, Power-Status, UPS output

The circuit for shutting down the Industrial PC is realized using the input-

signal PC_ON and the output-signal Power-Status:

• The PC starts shutting down if 24 V exists at PC_ON, for example

using a switch.

• After shutting down, the output-voltage of 24 V at Power-Status is

switched to 0 V. This allows connecting an air gap switch for

disconnecting the system from power supply. The maximum

current loading of the Power-Status output is 0.5 A.

• After power failure, there are still 24 V DC between UPS output

and Battery - Pole, current loading maximum 1.4 A.

• After the PC is disconnected from power supply via UPS software,

the UPS output is switched to 0V too. Connected peripheral

devices are thus switched off, a total-discharge of the battery is not

possible.

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Beckhoff CP63xx User Manual Page 15