BECKHOFF CX1100-000x - Manual (Page 34)

Product overview
32 Embedded PC
CX1100-0003
CX1100-0003 connections
This power supply unit permits not only the connection of the Beckhoff Bus Terminals, but also the serial connection
of the Beckhoff fieldbus box modules of the type extension box IExxxx. The power is supplied via the upper spring-
loaded terminals labelled “24V” and “0V”.
The supply voltage feeds the CX system and, over the K-Bus, the Bus Terminals. Since the K-Bus does no more
than pass data on, a further power supply is necessary for the Bus Terminals. This is provided by means of the
power contacts, which are not connected to the power supply.
Fieldbus connection:
Plug the IP link connector into the respective connections, i.e. one fibre-optic cable each into IN (x03) and OUT (x04).
You then connect the other end with the corresponding IP link interface of the extension box. The connection must be
made so that the output of the fieldbus connection is connected to the input of the extension box and vice versa.
LED:
With proper connection of the power supply unit and with power supply turned on, the power LED (PWR) lights up
green. In the case of a short-circuit, it lights up red. The I/O LEDs display the operation status of the Bus Terminals.
Error-free start-up of the configuration is signalled by the red "I/O ERR" LED being extinguished. If the ”I/O ERR" LED
blinks, an error in the area of the terminals is indicated. The error code can be determined from the frequency and
number of blinks.
PE power contacts
The ”PE" power contact must not be used for other potentials.