ABB Procontic CS 31 Intelligent decentralized automation system

This technical documentation supplied in a loose-leaf file can be easily up-dated.

In order to be registered in our revision and up-dating service, the enclosed Original Registration Form(1) should be

filled-in and addressed to your local ABB contact engineer.

The supplements contain either new sections of the documentation or replacement pages for existing sections.

Instructions for these supplements are enclosed in the corresponding parcel.

All rights reserved to change design, size, weight of the equipment described in our documentation.

Dear Sirs,

I want to keep my technical documentation updated, which is why I would like to

have my name to your list for distribution of revised documentation. The returned

original reply card contains all relevant information.

I am interested in detailled information about modifications on existing devices as

well as technical details of novel devices forming part of the control system used in

my installation.

ABB CS31

Intelligent decentralized

automation system

General

Machines and plant equipment, for

reasons of competitiveness are becoming even more

complex, the amount of information required from sensors

and actuating devices is constantly expanding, causing

heavier implementation and higher wiring costs.

The ABB Procontic CS 31 is designed to simplify

implementation and wiring.

The CS 31 is a decentralized automation system.

The system is ideally suited to applications where

modularity and cost reduction are key factors.

The CS 31 system comprises of the following :

– a central unit, enclosed within a compact case which

can be screw or DIN rail mounted,

– remote input/output plug-in units, wich are easily

removeable. The plug-in base can be screw or DIN

rail mounted,

– a simple twisted pair wire arrangement (RS 485),

which is utilized for connection of the central unit to

the I/O units.

The decentralized architecture of the ABB

Procontic CS 31 system offers a superior solution to

control system requirements:

– The central unit can be mounted within the control

panel.

– The input/output units can be mounted local to the

sensors and actuators.

As an example the central unit may be connected to

remote units distributed along a process line.

A cost reduction in wiring is possible upto 80% with the

implementation of the CS 31 system.

2.1 CS 31 benefits

– decentralized architecture as opposed to centralized

system,

– reduction of wiring costs (design, materials and

commissioning time),

– configurable input/output units,

– extensive diagnosis functions,

– freely expandable network. Additional units can be

connected whilst the installation is operational,

– simple transparent programming. All remote I/O channels

are handled as though they were centralized,

– remote I/O facility is integral feature and not an additional

unit,

– programmable serial communications (RS 232)

connection to modem, printer, operator display etc...

2.2 Modular system

The comprehensive range of units enhances the modularity

of the system.

For example :

The low profile 16 channel user configurable input/output

unit can be mounted on the control panel door, with inputs

and outputs connected to pushbuttons and pilot lamps.

2.3 Versatile range

The CS 31 is based upon two types of central units,

07 KR 91, 07 KT 92/07 KT 93 and 07 KR 31/07 KT 31.

The system can be configured to comply with most control

system requirements (See previous configuration

examples).

● 07 KR 91, 07 KT 92/07 KT 93 is designed for complex

applications with an higher level of functionality (Data

manipulation, PID regulation, etc...).

● 07 KR 31/07 KT 31 incorporates all of the functions

required for smaller decentralized applications, thus

providing an excellent Price/Performance ratio.

2.4 Diagnosis

The CS 31 system incorporates extensive diagnosis

functions.

All of the remote units contain a microprocessor which is

dedicated to the management of inputs/outputs and

diagnosis facilities.

The diagnosis are accessed using the "test" button on the

front of each remote unit, the results are displayed on the

I/O status led's.

The diagnosis results can be incorporated with the user

program thus enabling effective fault management.

2.5 Use of the CS 31 system

All of the remote units are easily interchangeable, even

with the process in operation, as they are plug-in base

mounted.

The screw terminals of the plug-in bases are used for

connection to the process inputs and outputs.

Bases are screw or DIN rail mounted.

The DIL switches on the bases are used for coding the

address of units.

Any additional connected units are automatically

recognized by the central unit.

NOTE : The system may comprise of remote units of

varying supply and input voltages.

2.6 Emergency operation

A system may comprise of many central units, however

one single master and the remainders slaves.

If the bus communication is interrupted or the master unit

fails the individual slave units continue with their own

operation.

2.8 General characteristics

The CS 31 system is developped according to the international standard IEC 1131-2.

● Operating conditions

– Temperature :

● operation 0 °C ... + 55 °C 32 ... 131 °F

● storage - 40 °C ... + 75 °C - 40 ... 167 °F

● transport - 25 °C ... + 75 °C - 13 ... 167 °F

– Humidity acc. to DIN 40040 class F without

condensation :

● average over the year 75 %

● up to 30 days of a year 95 %

● on the other days withregard to the average of the

year, occasionnally 85 %

– Air pressure :

● operation 800 hPA ( 2000 m)

● storage 660 hPA ( 3500 m)

● Mechanical data

– degree of

protection IP 20

– housing UL94 V0

UL94 V1 for central units serie 90,

coupler 07KPxx and units ICDxx

– vibration each of three mutually

perpendicular axes 10 Hz ...57 Hz

continuous : 0.0375 mm amplitude

occasional : 0.075 mm amplitude

57 Hz ... 150 Hz

continuous : 0.5 g acceleration

occasional : 1.0 g acceleration

– shocks occasional excursion to 15 g, 11 ms,

halfsine in each of three mutually

perpendicular axes

– impact for units with a power supply > 30 VAC.

withstand According to IEC 950 : a steel sphere

test with a mass of 500 g is to fall freely

from a height of 1300 mm

● Mounting

– DIN rail 35 mm

– Screw screws Ø 4 mm (M4)

mounting

● Serial interfaces

– for connection of the RS485,

central unit to using screw terminals

the remote units

– for programming and RS232-C

setting parameter 9 pole D connector

(female)

● Termination

– on the plug-in base ECZ use 60 °C copper conductor only

Cross section :

– bus wiring terminal : twisted pair

AWG 24 (0.22 mm2

) to AWG 18 (0.8 mm2

)

– earth terminal : rigid or stranded connector

AWG 10 (5.2 mm2

)

– Others terminals :

● inputs : stranded connector

AWG 18 (0.8 mm2

) to AWG 14 (2.1 mm2

)

● outputs : stranded connector

AWG 14 (2.1 mm2

)

● power supply

AWG 14 (2.1 mm2

)

– on removable terminal 2.5 mm2 (copper N°

 AWG14)

block (small section)

– on removable terminal 1.5 mm2 (copper N°

 AWG16)

block (small section)

– screws tightening 7 ibs. inch (0.8 Nm)

torque (for guidance only)

● Supply connections

– 24 VDC (process and 24 VDC

power supply (-20 %, +25 %, i.e. 19.2 ... 30V)

incl. ripple

ripple factor < 5 %

– 120 VAC power supply 120 VAC

(-15%, +10%, i.e. 102 ... 132V)

50 Hz or 60 Hz (± 5 %)

– 230 VAC power supply 230 VAC

(-15%, +10%, i.e. 195.5 ... 253V)

50 Hz or 60 Hz (± 5 %)

● Voltage drops and interruptions

– DC power supply interruption time 10 ms

time interval between two

drops 1s

– AC power supply interruption time 0.5 period

time interval between two

drops 1s

● Creepage distances and clearances

according to EN 61131-2 /

IEC1131-2

● Insulation test voltages

the insulation test voltages

are according to IEC 1131-2

● Electromagnetic compatibility (EMC)

– electrostatic discharge (ESD) according to

IEC 1000-4-2

(severity level 3)

test peak voltage :

● at discharge thru air 8 kV

● at discharge

 thru relay's contact 6 kV

time between two discharges > 1s

number of discharges on each

selected point 10

– radiated electromagnetic

 field immunity test according to

IEC 1000-4-3

field strength 10 V/m

(severity level 3)

frequency range 27 MHz to 1000 MHz

sweep speed 1.5 x 10E-3

decade/s

– fast transient burst test (FTT) according to

IEC 1000-4-4

interference voltage for :

mains terminals 115/230 V 2 kV

mains terminals 24 V 2 kV

output terminals 24 V 1 kV

output terminals 115/230 V 2 kV

input terminals 24 V 1 kV

input terminals 115/230 V 2 kV

analogue input/output terminals 1 kV

CS 31 bus 2 kV

programming interface 0.5 kV

– surge immunity according to

IEC 1000-4-5

test voltage for

assymetric coupling common mode

power supply (115/230 VAC) 2 kV

power supply (24 VDC) 1 kV

digital inputs/outputs 1 kV

test voltage for

symetric coupling differential mode

power supply (115/230 VAC) 1 kV

power supply (24 VDC) 1 kV

digital inputs/outputs 1 kV

● ABB Procontic CS 31 system bus

The CS 31 bus is a shield twisted pair RS485

– cross 0.22 ... 0.8 mm2

(N°

 AWG 24 ... N°

 AWG 18)

– twists > 10 per metre

– resistance 100 /km