BECKHOFF CX1100-000x - Manual (Page 40)

Product overview
38 Embedded PC
CX1100-0004
CX1100-0004 connections
This power supply unit is equipped with an I/O interface, which permits connection of the Beckhoff Bus Terminals.
The power is supplied via the upper spring-loaded terminals labelled “24V” and “0V”.
The supply voltage feeds the CX system and supplies a voltage of 24 V DC (-15 %/+20%) to the Bus Terminals via
the E-Bus. The dielectric strength of the power supply unit is 500 V
rms
. Since the E-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. The integrated NOVRAM permits storage of process data that is safe
against power failure.
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.
PE power contacts
The ”PE" power contact must not be used for other potentials.
Note
This power supply is designed for use with CX1020 systems only. Operation with CX1000 systems
is not possible because the EtherCAT protocol is not implemented / designed in the hardware of the
CX1000 systems.
Note
The power supply CX1100-0004 can only be used instead and not simultaneously with system
interface CX1020-N060
Warning
It is important to keep attention to the hardware revision of the power supply. Power supplies with
a hardware revision > 2.0 only work with CX1020 systems with a hardware revision > 2.1 !