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BASIC THEORY

Knowledgeable about Alpha Mini PLC

Mini PLC is a simple Alpha formed with small size and designed for use

in homes, offices and factories that require adequate controls are flexible and

controls the general purpose microprocessors that are designed to meet the

practical demands in the field of automatic industrial system, instead of electrical

mechanical system formed the backbone of the system control strategy or a

complex process, therefore, to the present knowledge of the circuit using a relay

system remains a ery important basic and necessary in the work of the mini!

programming PLC Alpha" Alpha Mini PLC works by receiing data from input

deices are switches, buttons, sensors, and so forth" Changes in input tools will

proide mini!PLC signal on the Alpha is the next logical that a program stored in

memory, the input conditions will be cooked by the Alpha Mini PLC further

orders of the inputs will be transferred by mini!PLC keoutputnya Alpha which can

then be used to drie the machinery or a production process flow"

Alpha Mini PLC has the ability to work in conditions of high temperature,

conditions of high humidity, the influence of ibration and noise conditions and

the surprises that arise by machines or other electrical equipment"

#asically Mini PLC and PLC has some are using both similarity" $hat%s using

logical "$his is the example of $he logic control in that tools &

Logika 'elay (Ladder) Alpha Programs information

A*+

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*A*+

'

*'

-'

*$

$able .". Conersion to Ladder Logic /ates

0imilarly Mini PLC works by receiing data from input deices are

switches, buttons, sensors, and so forth" Changes in input tools will gie a signal

to the Mini is a PLC which is the next logic of a program stored in memory, the

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input conditions will be processed by the Mini PLC, subsequent orders of the

inputs will be transferred by mini PLC keoutputnya which can then be used to

moe machines or a flow control process" 1or more details of a mini PLC block

diagram can be described as follows &

Peralatan

input

Modul

input

CPU

Memori

unit

Komputer Front Panel

Keys

Catu daya

Terminal

output

Peralatan

output beban

1igure 2". #lock diagram of configuration Mini PLC

#esides, the industries that use the Alpha mini PLC, can also expect

adantages from the use of mini!PLC Alpha as follows&

." Can work with quite safe, reliable, and flexible"

2" 3asy to change the program or from the circuit control rancangaan"

4" +oes not require a lot of wiring, saing costs and simplify wiring"

5" 3asy in programming, because it is designed dengaan language understood

by many people"

6" 3asy to monitor and the location of errors menentukaan eent of

interference with the control circuit, so the time saed for it big enough"

Mini PLC part o the alpha

!" Central pro#e$$ing unit %CP&'CPU is the brain to store and process the data set from the control

software has deprogram from the PC (personal computer)"

$he main function of the CP7 to do all settlement decisions are logical,

next formed into opersi!operation as it has been programmed by the user"

(" Module Input)Output

Module input 8 output functions to conert signals coming from input

deices into oltage quantities with low leel so that it can be processed by

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the CP7!sinyaal signal with a certain leel to control the machine or

equipment"

3ach input and output module has a separate power supply" #ig power

supply depending on the specifications of alpha mini PLC itself" 7ssually

input power supply in the form aailable +C output oltage with a low leel

is used only as a mini!PLC input alpha, while output has its own power

supply in accordance with the output deices"

1or capacity input 8 output depends on the type of alpha mini PLC" 9f

the addition of input 8 output by using input 8 output extensions that hae been

adapted to the PLC used"

#asically the relationship of input 8 output can be seen in the block

diagram below&

*" +a#ilitie$ , +a#ilitie$ at Alpha PLC

9n planning and designing control systems for production processes

by using the Mini PLC, to note the rules that apply to the Mini PLC systems,

particularly those inoling the facilities proided are &

." +ata 8 code input and output Mini PLC"

2" +ata 8 Code :ey 1unction"

4" +ata 8 1unction code logic"

5" +ata 8 code block function"

*ew mini PLC can function as a tool of control, if the facilities

proided aboe are arranged in such a way according to the needs of the

control system" $o generate the control system so it can work in accordance

with the desired power required high creatiity, training, and experience of a

4

Peralatan

Input :

- saklar

- sensor

- tombol

- Dll

Modul

input

Catu

Daya

CentralProcessing

Unit(CPU )

Modul

output

Catu

Daya

Peralatan

output:

- kontaktor

- relay

- alarm

- Dll


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control system designer, so that the facilities hae been proided by the Mini

PLCs can be used optimally"

-" Code Input ) Output Mini PLC

9n general, all types of Mini PLC always included books manuals as

guidance on data 8 code from the input 8 output, data 8 code help relay,

programming instructions and ways of operating the deice through the

terminal or computer programming"

+ata 8 code input 8 output Mini!;M' PLC AL!A from M9$07#90, =?,

+ata or code input 8 output modules are connected with the equipment

98 outside, so the commands from external input deices can be understood

by the M9*9 PLC in accordance with the data 8 code that has been

determined"

." Code Ke/ +un#tion

Consists of &

:ey *ame :ey *umber :ey 1unction

:=.

7sed to option menu, the data

confirm, strengthen the manual

input of the monitor function

:=2

$o cancel the operation, moing to

another program or leel, moe to

another menu

:=4

$o connecting (add function block)

to strengthen the input alue, or

moe to a program or menu

:=5

$o decide or remoe the function

block, or moe to a program or

menu

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:=60crolling LC+ layers on the menu

option

:=;0crolling LC+ layers on the menu

option

:=>Moe to the right on the LC+ layer,

1# ump program or command

:=?Moe to the left of the LC+ layer,

1# ump program or command

0" Mini PLC Progra11ing Alpha

Mini PLC in order to work properly, it should follow the following steps &

." +etermining the ob description of the system is complete"

2" +etermining the components of 9 8 to be connected to the terminal 9 8

Mini PLC"

4" Make a series of controls in the form of ladder diagram"

5" 9f using a


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#oolean instructions for executing functions of each input, with

a maximum input number 5" inside there are logic gates, so we

can set the desired output depends on the formula proided" 9f

the formula is gien only A*+, the icon will turn into #oolean

A*+ icon"


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Fhen the input signal then the output will be *, this situation

will continue to be maintained een if the input is 11, if the

input it clear in *, the output will be 11" 0et ! 'eset

function similar to the 0elf!


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= = = = =

Multiplication input A*+ gate, output will be * if all inputs *

and if one of the four input or output 11 input will be 11" A*+ logic

could also be analogous to a relay contact connections are installed in

series"

(" OR

$able Logic

9nput . 9nput 2 9nput 4 9nput 5 utput

.

=

=

=

=

.

.

=

=

=

.

.

.

=

=

.

.

.

.

=

.

.

.

.

=

' gate is the sum of input, output will be * if one of its inputs

*, but if all of its inputs the output 11 " r it can be said relations

contacts are parallel *"

*" 7OT

$able Logic

9nput . utput

.

=

=

.

utput will be * if the input 11 and ice ersa" r it could be

analogous to the *C relay contacts"

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-" 8OR

$able Logic

9nput . 9nput 2 utput

.

=

.

=

.

.

=

=

=

.

.

=

utput will be * if one of the inputs are *, if both input * or

11 the output 11"

." 7OR

$able Logic


.

=

=

=

=

.

.

=

=

=

.

.

.

=

=

.

.

.

.

=

=

=

=

=

.

*' gate is the output of ' gate on the right note" 9f all inputs

are 11 the output will be *, and if one input or all inputs * then the

output will be 11"

0" 7A73

$ablel Logic


.

=

=

=

=

.

.

=

=

=

.

.

.

=

=

.

.

.

.

=

=

.

.

.

.

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*A*+ gate is a gate thatGs *$" 9f all inputs * then 11 output, and

ice ersa"

5" Appli#ation E9a1ple$ &$ing the Alpha #ontroller$

a" Operation lo#4ing rela/$ %$el,holding rela/'"

3xample programs using mron PLC &

9f desired alpha program in the PLC mron PLC program aboe can be

changed into a model program like the image below &

b" Mode$ o operation (

peration simple 9nterlock work with mron PLC &

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9f desired alpha program in the PLC mron PLC program aboe can be

changed into a model program like the image below &

:ORKSHOP PRO;ECT

:AR7I7< SYSTEM I7 BARRA


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water in barrage is full, many dangerous can come to our home" Like see the

example like in situ gintung one years ago" Fhen many people still fall asleep, the

flood has come without permission because the barrage is broken down" Many

lifes gone and we ust see that disaster"

0o, to aoid the same disaster in this country" 9 try to make the system that

can preent the disaster could repeat" $hat system is $he warning system in

barrage 8 +AM with Alpha Control" Fith this system we can know when the

water leel in barrage touch the wary out leel" Fe can go out from our house and

find the safety places before the disaster comin%" #ut maybe we should still in

home, because with this system, the water will be drying lonely and back to the

normal leel because when the water touch the wary out8dangerous leel the

buzzer will be on and warned us the water leel is in dangerous leel, and the gate

will be open automatically to drying the water" $he gate can open automatically or

manually because we can chose the operating system"

+LO:CHART

13

RELAY 1 = ON

LAMPU 1 = ON

START


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3rawing Plant

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Li$t O Material

*o Material 7nit Jolume

I In$tala$i Panel

MC# 4 Phase pcs 2 :ontaktor pcs 5

$hermal oer load pcs 2

Line up terminal 5mmpcs

2>

Line up terminal ;mmpcs

4

3nd plate 5 mmpcs

2

3nd plate ; mmpcs

2

Firing chanel M 2

Profil g M .

Profil c M 2

+in profil M 2

Lamp indicator redpcs

.

Lamp indicator greenpcs

..

Main switchpcs

.

Push button nopcs

4

*KA1.,6 mm red M 5 *KA1.,6 mm blue M 5

*KA1 .,6 mm yellow!green M 5

1use pcs 5

II In$talation Motor

0trip conectorpcs

2

Motor 4 phasa (+L)pcs

2

#ahan dan meterialpcs

.

Plat alumunium pcs 2

0hoe cable +oz 5

0piral cable +oz 2

0krup contersink +oz 5

Cable

*KA .,6 mm red M 6

*KA.,6 mm blue M 5

*KA .,6 mm yellow!green M 5

*KA1.,6 mm red M 5

*KA1.,6 mm blue M 5

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*KA1 .,6 mm yellow!green M 5

Identii4ation I ) O

*o 9nput

Alpha

$erminal

. erload Motor . 5

2 erload Motor 2 4

4 erload Motor 4 5 2

5 'eset 8 ff Alarm .

*o utput

Alpha

$erminal

. Alarm .

2 #uzzer 2

;OB 3ESCRIPTIO7

! Fhen the water touch the electrode . , the relay . will be work and the

lamp . (4rdalert) will be *"

! Fhen the water touch the electrode 2, the relay 2 will be work and the

lamp 2 (2ndalert) will be *"


lamp 4 (.stalert) will be *"


lamp 5 ( Fary out leel) will be *"

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! $hat means the buzzer . will be * and warned the people water in

wary out leel"


lamp 6 will be *"! Fhen the relay 6 *, $he ralay will be actiated the contactor .,2,4

and 5 to make the motor . and to work to open the gate"

! Fhen the gate was open the water will drying lonely"

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