2. Agenda
KEY TOPICS DISCUSSED IN
THIS PRESENTATION:
Learn what are the output devices used in
PLC
Their respective functions
Application process
Some importance
3. PLC (Programmable Logic Controller)
systems are commonly used in industrial
automation to control and monitor machines
and processes. The output devices used in PLC
systems are responsible for turning electrical
signals into physical action, such as activating a
motor or opening a valve.
Output devices:
are components of a system that receive signals or
data from a computer or other input device, and
convert that information into a form that can be
easily understood or acted upon by humans or
other machines. In the context of a Programmable
Logic Controller (PLC) system, output devices are
used to control physical processes, such as turning
on a motor or activating a solenoid valve.
4. Types of Output Devices:
Solenoids
Solenoids are electromagnetic devices that convert
electrical signals into mechanical motion. They are
commonly used to control valves and other
mechanical components in industrial processes.
Process:
In a PLC system, solenoids are typically controlled by digital
output signals from the PLC. When the PLC sends a signal to the
solenoid, it energizes the coil and causes the plunger to move,
which in turn activates the mechanical process that the solenoid
is connected to.
Importance:
Solenoids are a critical component of PLC systems, enabling
precise control and automation of mechanical processes, while
also providing flexibility and reliability.
5.
6. Dampers
Dampers are used to control the flow of air or other gases. PLCs can
open or close dampers to regulate air flow rates and pressure within
HVAC systems or industrial processes.
Process:
The application process of damper devices in PLC involves
determining the damper requirements, selecting the appropriate
damper device, installing the device, configuring the PLC to control
the device, and testing and optimizing the airflow process for optimal
performance.
Importance:
Dampers are an important component in many industrial processes,
particularly those that involve the regulation of air or gas
flow.dampers are an essential component of many industrial
processes as they enable precise airflow control and can improve
process efficiency, quality, safety, environmental compliance, and
cost savings.
7.
8. Motors
Motors are used to convert electrical energy into
mechanical motion, and can be controlled by PLCs to
regulate the speed and direction of equipment such as
conveyors, pumps, and fans.
Process:
Applying a motor in a PLC system involves selecting the
appropriate motor and driver, connecting it to the PLC, and
programming the PLC to activate it as needed to control
the mechanical process. The motor driver translates the
signals from the PLC into the appropriate control signals
for the motor.
Importance:
Motors are used to control a wide range of mechanical
processes, including conveyor belts, pumps, fans, and
robotic arms. By using a motor, the PLC system can
precisely control the speed, direction, and position of the
process, resulting in greater efficiency and accuracy.
9.
10. Relays
Relays are electromechanical switches that are controlled
by an electrical signal. They are often used to control lights,
motors, and other electrical devices.
Process:
applying a relay in a PLC system involves selecting the
appropriate relay, connecting it to the PLC, and
programming the PLC to activate it as needed to switch the
load on and off. The relay serves as an interface between
the low-power signal from the PLC and the high-power load,
allowing for precise and reliable control of the device.
Importance:
Relays are a critical component of PLC systems, enabling
precise and reliable control of high-power loads, while
also providing flexibility and protection for the PLC.
11.
12.
13. Lights
Indicator lights can be used to show the status of a
machine or process. PLCs can turn lights on or off to
indicate when a machine is running, when a problem
has occurred, or when maintenance is required.
Process:
applying lights in a PLC system involves selecting the
appropriate lights, connecting them to the PLC, and
programming the PLC to activate them as needed to
provide visual feedback. The use of lights can greatly
enhance the visibility and control of processes, making
them an important component of many PLC systems.
Importance:
Lights are an important output device in a
Programmable Logic Controller (PLC) system as they
provide visual feedback about the status of a process or
system.
14.
15. Alarms
Audible alarms can be used to alert operators when a machine or
process has a problem. PLCs can activate alarms when sensors
detect an abnormal condition, such as high temperature, low
pressure, or a malfunction.
Process:
applying alarms in a PLC system involves selecting the appropriate
alarm devices, connecting them to the PLC, and programming the PLC
to activate them as needed to provide audible or visual feedback. The
use of alarms can greatly enhance the safety and control of
processes, making them an important component of many PLC
systems.
Importance:
alarms are an important component of many PLC systems,
providing critical feedback, enhancing safety and automation
capabilities, and improving overall efficiency. The use of alarms
can greatly improve the visibility and control of processes, making
them an essential tool for many industrial applications.
16.
17. Valves
Valves are used to control the flow of liquids or gases.
PLCs can open or close valves to control the flow rate
and pressure of fluids in a system.
Process:
applying valves in a PLC system involves selecting the appropriate
valve types, connecting them to the PLC, and programming the
PLC to activate them as needed to control the flow of liquids or
gases, regulate pressure, or divert flow to different processes. The
use of valves can greatly enhance the control and automation of
processes, making them an important component of many PLC
systems.
Importance:
Valves are important devices in PLC (Programmable Logic
Controller) systems because they are used to control the flow
of fluids or gases in industrial processes.
18. Different types of Valves:
Ball Valve
They are commonly used in applications that require tight
shut-off, such as gas or liquid pipelines.
Butterfly Valve
They are often used in applications that
require low-pressure drops and are relatively
easy to operate.
Globe Valve
They are commonly used in applications that require
precise control of flow rates, such as in chemical or
pharmaceutical processes.
19. Gate Valve
They are commonly used in applications that require a
full flow rate with low pressure drops.
Diaphragm Valve
They are commonly used in applications that require high
purity or sterile environments, such as in the food and
beverage industry.
Needle Valve
Needle valves are commonly used in industries such
as oil and gas, chemical, and pharmaceutical, where
accurate flow control is essential.
20.
21. Fans
Known also as centrifugal fans. This fans are used to
circulate air within industrial processes, cooling down
machines or removing fumes. PLCs can control the speed
and direction of fans to optimize the airflow within a
system.
Process:
The application process of fans in PLC involves determining
the fan requirements, selecting the appropriate fan,
installing the fan, configuring the PLC to control the fan,
and testing and optimizing the airflow process for optimal
performance.
Importance:
fans are an important component of PLC systems as they
enable precise airflow control and can improve process
regulation, energy efficiency, environmental compliance,
equipment protection, and safety in industrial processes.
22.
23. Displays
PLCs can also control displays, such as LED or LCD screens,
to show information about the machine or process.
Displays can be used to show production rates, error
messages, or other important information.
Process:
The application process of displays in PLC can vary
depending on the specific system and the requirements
of the operator.
Importance:
Displays are of great importance in PLC
(Programmable Logic Controller) systems because
they provide operators and maintenance personnel
with real-time information about the status of
industrial processes being monitored and controlled.
24. Heaters
Electric heaters are often used to heat liquids or gases in
industrial processes. PLCs can turn heaters on or off to
maintain a specific temperature or to prevent overheating.
Process:
The application process of heater devices in PLC involves
determining the heating requirements, selecting the
appropriate heater device, installing the device, configuring
the PLC to control the device, and testing and optimizing the
heating process for optimal performance.
Importance:
heater devices are an essential component of PLC
systems as they enable precise temperature control in
industrial processes and systems. The importance of
heater devices in PLC can be seen in their ability to
improve process efficiency, quality, safety, cost savings,
and flexibility.
25. Pneumatic cylinders
Pneumatic cylinders are used to convert compressed air into
linear motion. PLCs can control the direction and speed of
pneumatic cylinders, making them ideal for controlling grippers,
clamps, and other mechanical devices.
Process:
the application process of a pneumatic cylinder in a PLC
system involves selecting the appropriate cylinder, connecting
it to the PLC's output module, programming the PLC to control
the cylinder, testing and optimizing the cylinder's performance,
and monitoring and maintaining the cylinder over time.
Importance:
pneumatic cylinders can be an important and
valuable component in a PLC system. They can
provide high force and speed, operate reliably and
simply, be integrated with other devices and
processes, be cost-effective, and offer a high degree
of safety.
