BECKHOFF CX9000 - Manual (Page 39)

Assembly and connecting
Embedded PC 37
Mechanical installation of the UPS Module
Note
The UPS module for CX9000 is not fully supported by TwinCAT yet.
The UPS module should be connected the described way. To get the power fail signal (pin 3 on UPS)
must be connected to a digital input terminal. In this way the PLC can
access the power fail signal and save the data or shut down the system. The shutdown time can only
be set by the selector on the front side of the UPS (best choice is 0).
In case of shutdown the UPS will restart the system after power fail.
0. Switching off and disconnecting the power supply
Before a CX9000 system can be dismantled, the system should be switched off, and the power supply should be
disconnected.
1. Removing from the top-hat rail:
Before the individual CX9000 modules are disconnected, the whole CX9000 hardware block should be removed from
the top-hat rail. Proceed as follows:
1.1. Release and remove the first Terminal next to the power supply unit on the top-hat rail.
First remove any wiring from power supply unit and then from the first terminal on the top-hat rail next to the power
supply unit. If the wiring is to be reused for another system, it is advisable to make a note of the connections. Then
pull the orange terminal release (see arrow) to release the terminal and pull it out.
1.2. Releasing the CX9000 system
In order to release the CX-block, pull the white straps at the bottom of the module in the direction of the arrows. They
will lock in the extended position. After pulling the terminal release of the power supply unit, the block can be
removed carefully from the top-hat rail.