Beckhoff CP27 Series, Инструкция по установке и эксплуатации

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Installation
Innovative solution for shutting down Industrial PCs
Industrial PCs equipped with a UPS are in actual use frequently switched off by simply turning off the
supply voltage. In this case the PC shuts down via the battery. However, over time this reduces the
service life of the battery.
The new Beckhoff power supply technology approach addresses this problem and now offers the user the
option of switching the PC off without the need for using the battery, thereby reducing the load on the
battery.
In addition to the main switch this innovative solution uses an ON/OFF switch for the machine. Basically,
the main switch remains switched on and provides the power supply for the PC during shutdown. Via the
PC ON-input of the power supply the PC gets the command to shut down the operating system.
Once the PC has shut down, the PC power supply unit sets the Power Status-output (P-S) to 0, what
indicates that the process is complete and that the main voltage can be switched off. This can be done
manually via a signal lamp connection or via a contactor. With this solution the main switch generally only
has to be switched off if the control cabinet has to be opened. The battery will only be used in the event of
a power failure.
In order to maintain a screen display for the Industrial PC in the event of a power failure, the power supply
unit is equipped with a UPS output 27 V / 1.4 A for connecting a Control Panel with a display dimension
up to 19 inches. This enables a power failure to be visualized and displayed to the user. Once the PC has
shut down, the UPS output is switched off.
For a detailed functional description please refer to section Connecting Power Supply .
3.3.2 Pin assignment of the connector
The power supply and the external circuit for switching the Industrial PC on and off are connected via the
8-pole plug connector.
1 2 3 4 5 6 7 8
Pin Function Pin Function
1 - 5 -
2 +
Battery Pack
(with UPS only)
6 +
24 V
DC
Power Supply
3 UPS+ (Output) 7 PC_ON
4 8 Power-Status
16 CP27xx