Automatic material mixing system using PLC.
This is PLC Program for automatic material mixing
system using PLC.
Problem
Description:-
We need to mix two
material (material 1 and material 2). Provide separate switch for each
material. And also provide facility for mixed material for the same. Write
ladder diagram logic for the application.
Problem Diagram
Problem Solution
For explanation
we are able to think about straight forward example of
mixing system. During this
application pure unmixed material
is ready by the action of SW S1 and S2.And mixed material is ready by the action of SW3.
Operator watches the extent of
the tank and he will discharge
tank by the discharge valve and
we keep the mixer motor ON whereas tank is being filled. We are going to give interlock system thus user cannot operate each switch at same time.
Program
Here
is PLC program for Automatic material mixing system using PLC.
List
of inputs
SW 1:-I0.0
SW 2:-I0.1
SW 3:-I0.2
Mixer trip:-I0.3
List
of outputs
Material valve 1:-Q0.0
Material valve 2:-Q0.1
Discharge valve:-Q0.2
Program Description
In network 1 we used NO
contact of SW1 (I0.0) and NC contact of SW2 (I0.1) and NC contact of SW3 (I0.2)
in series. By activating SW1 operator can START the valve for material 1
In network 2 we have
taken NO contact of SW2 (I0.1) and NC contact of SW1 (I0.0) and SW3 (I0.2) in
series. By activating SW2 (I0.1) operator can START the valve for material 2.
In network 3 mixer motor
will START when one of the valve is running out of two valves. If there is some
fault in motor then motor will not start.
Note:-Application is only for learning and educational purpose .Above application may be different from actual application. This application can be done in other PLC also. Users are responsible for correct operation of the PLC system and for any possible injuries and or material damages resulting from the use of this program. It is necessary to take care of safety during implementation, installation, maintenance and operation.