Beckhoff CU8800-0010 Manuel d'utilisateur télécharger pdf (Page 33)

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Bus Terminal

Design

The Beckhoff Bus Terminal with its outside

contour adjusts perfectly to the measure-

ments of terminal boxes. The clear front

panel of the terminal with light-emitting

diodes for status display, plug-in contact

labelling and detachable labelling ﬁ elds

guar

antee clarity. The 3-wire system supple-

mented by a protective conductor terminal

makes it possible to wire sensors /actuators

directly.

Free mix of signals

The Beckhoff I/O system supports more

than 200 Bus Terminals and is thus prob-

ably the most comprehensive system on the

market. The components enable users to

operate mixed signal conﬁ gurations without

restriction at each station. This means that

a single non-central input/output node can

map all the necessary signals.

Appropriate Bus Terminals are available

for any digital or analog automation signal

type, for currents and voltages with stand-

ardised signal levels and for PT100 and

thermocouple signals. Intelligent devices

can be connected via Bus Terminals with

serial interfaces in accordance with RS232,

RS485 or 20 mA TTY.

The ﬁ ne granularity of the Bus Terminals

enables bit-precise composition of the

required I/O channels. The digital Bus Ter-

minals are available as 2-, 4- or 8-channel

terminals. The standard analog signals of

± 10 V, 0 V ... 10 V, 0 ... 20 mA and 4 ... 20 mA

are all available as 1-, 2-, 4-, and 8-channel

variants within a standard housing. In the

8-channel variant, analog input and output

signals are arranged in an ultra-compact

way within a standard Bus Terminal housing

across a width of only 12 mm. The system

is thus highly modular and can be projected

cost-effectively with an accuracy down to a

single channel.

Flexible connection system

The Bus Terminal system offers different

connection options for optimum adaptation

to the respective application. The standard

KL type Bus Terminals include electronics

and connection level in a single housing.

The KS type Bus Terminals feature a plug-

gable connection level. The KS series Bus

Terminals enable the complete wiring to be

removed as a plug connector from the top

of the housing for servicing.

As an alternative, the KM type terminal

modules feature pluggable wiring, com-

bining 16, 32 or 64 digital I/Os in a very

small area with high packing density.

Automation standard

The Beckhoff Bus Terminal ensures that

control cabinets and terminal boxes are

constructed more economically. Using the

4-wire terminating system, all of the usual

sensors and actuators with different types

of signal can be connected directly without

other connection systems. It is no longer

necessary to wire the ﬁ eld devices between

the ﬁ rst terminal connection in the control

cabinet or in the terminal box and the

controller. This signiﬁ cantly reduces the

costs involved in controller design and

saves space, material, work, and money.

The ﬁ eld devices can be wired using

the Beckhoff Bus Terminal system on site

where the signals occur. Installation and

wiring of the Beckhoff Bus Terminal is thus

simple and compact like that of a standard

terminal block. The Bus Terminal can be

connected to the controller by connecting

a Bus Coupler via the ﬁ eldbus as required.

The Beckhoff Bus Terminals have been

tried and tested in a wide range of sectors

worldwide, from machine construction to

building management. Beckhoff Bus Termi-

nal technology makes design, construction,

wiring, commissioning and maintenance

equipment and machines very cost-effec-

tive.

The Bus Terminal system

The Beckhoff Bus Terminal is an open and ﬁ eldbus-neutral I/O

system consisting of electronic terminal blocks. The head of an

electronic terminal block is the Bus Coupler with the interface

to the ﬁ eldbus. Bus Couplers are available for all common bus

systems.

With the master terminals, ﬁ eldbus functionalities are also

available in form of a standard Bus Terminal. This is particularly

advantageous for bus systems that are integrated as subsystems

into a higher-level system.

The robust housing, secure contacts and the solidly built elec-

tronics are prominent features of our components. A station

consists of one Bus Coupler and up to 64 electronic terminal

blocks. With the K-bus extension it is possible to operate up to

255 Bus Terminals on one Bus Coupler. The electronic terminal

blocks are clipped onto the Bus Coupler. They connect by simply

latching together. This means that each electronic terminal block

can be exchanged separately and can be mounted on a standard

mounting rail. In addition to horizontal type mounting, all other

mounting types are permitted.

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Beckhoff CU8800-0010 Manuel d'utilisateur Page 33

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