Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Automatic Motor Forward and Reverse Control using Timer
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > PLC Tutorials > Automatic Motor Forward and Reverse Control using Timer

Automatic Motor Forward and Reverse Control using Timer

Learn how Automatic Motor Forward and Reverse Control using Timer optimizes operations in conveyor belts and machine tools.

Last updated: April 2, 2025 5:59 am
K Mugunthan
PLC Tutorials Electrical Basics
No Comments
Share
4 Min Read
SHARE

Automatic Motor Forward and reverse control using a timer is one of the finest techniques in industrial automation. In this, we use timers to switch the connection for forward and reverse motor operation without manual involvement. It also improves efficiency, process time, and human errors of operation.

Contents
Components UsedPower CircuitControl CircuitCircuit OperationSimulationConclusion

This electrical circuit mainly consists of contactors, relays, and a timer to get the desired output. During this operation, when the timer reaches a preset duration, it controls the movement of the forward and reverse direction of the motor in the circuit. This type of system was mainly used in conveyor belts, machine tools, and automated gates where two directions are necessary. By integrating the timers in the circuit, the process achieves its precise control, giving good performance and reliability in automated operations.

Components Used

The main components used in this electrical circuit are listed below.

  • Three Phase Power Supply
  • Single Phase Power Supply
  • Three Pole Miniature Circuit Breaker
  • Three Pole Contactor
  • Motor
  • Start and Stop Switch
  • Timer

Power Circuit

The power circuit diagram is shown below.

Automatic Motor Forward and Reverse

Control Circuit

The control circuit diagram is shown below.

Single Phase Power Control Circuit of Motor

Circuit Operation

  • A three-phase supply of 415 V is applied to the system by connecting it to the three pole MCB.
  • The output of the MCB was connected with the Forward and reverse contactors for switching and providing the supply
  • Single Phase supply of 230 V is applied to the control circuit. The control circuit consists of a start switch, a stop switch, a timer, and contactor coils.
  • Single Phase supply is connected with Start and Stop switch. Once the Start button is pressed, it energizes the Motor forward coil (1 MCR), which makes the contactor (1 MCR) operate, and the motor starts to rotate in the Forward direction.
Automatic Motor Forward and Reverse Control using Timer
  • At the same time, when the forward contactor is energized, the timer ( 1 CR) is also energized.
  • Once the preset time is obtained in the timer, the timer coil (1 CR) gets energized, which cuts the supply of the forward contactor coil (1MCR) and energizes the reverse contactor coil (2 MCR) and the second timer (2CR).
  • The Reverse Contactor coil (2MCR) will make the reverse contactor (2 MCR) operate and make the motor rotate in the reverse direction, and the second timer (2 CR) will also be in operating condition.
Forward reverse with timer diagram
  • And once the time was done in the second timer (2CR) it cuts the supply of reverse contactor coil (2 MCR). Then the forward contactor (1 MCR) will operate, and the motor starts to rotate in the forward direction, and this process will continue until the Stop button is pressed.
  •  Once the Stop button is pressed, the total process will be stopped.

Simulation

Watch this simulation video of the discussed motor circuit.

Automatic Motor Forward and Reverse Control using Timer

Conclusion

This method of controlling the motor to rotate in a forward and reverse direction is one of the efficient and reliable methods for controlling the process in the automation sector. In final, this integration of timers in the circuit makes the control for optimizing the performance of the Process, downtime will be less and it develops the safety aspect also. It is also cost effective also, because we are reducing one manpower in the process, which will make the process automation quicker and contribute to efficiency increase and operational effectiveness.

Read Next:

  • Automatic Circuit Recloser
  • De-energized Electrical Circuits
  • How to Locate Faults in Cables?
  • Variable Air Volume Controller
  • Why is HV Testing important?
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

PLC Pneumatic Circuit Control
Use of Regions in SCL Language
4-20 mA Transmitter Wiring Types : 2-Wire, 3-Wire, 4-Wire
CODESYS HMI Interface
Difference Between Microcontroller and PLC
How to Design a System Architecture in Industrial Automation?
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

PLC Motor Control Ladder Logic Programming
PLC Analog I/O Potential Problems – Troubleshooting & Issues
PLC Programming for Tank Heating Control using Heater
Wiring Diagrams of PLC and DCS Systems – DI, DO, AI, AO
Tia Portal – Different Instances of Calling a Function Block
Why Are Neutral and Earth Separated?
Why Do We Need to Connect Transformers in Parallel?
How to Retrieve PLC Project From Memory Card?

Keep Learning

Bit Shift Registers PLC Program

PLC Light Sequence Control using Bit Shift Registers

HMI screen for operator

#8 PLC Best Practices – Validate HMI Input Variables at PLC Level

Use of Comments in SCL Language

Use of Comments in SCL Language

PLC Latched Circuit Example

PLC Latching Function

Free Schneider PLC Training - Automation Course

Free Schneider PLC Training – Automation Course

Omron PLC increment and decrement

Increment & Decrement Instructions in CX-Programmer (OMRON)

Ladder Logic for Motor Control

PLC Programming for 3 Motors control in Ladder logic

Power Supply Sizing for Industrial Automation Systems

Power Supply Sizing for Industrial Automation Systems

Learn More

Importance of Instrumentation Engineering

Importance of Instrumentation Engineering – Objectives

different flow measurement technologies

Different Flow Measurement Technologies

Short Circuit and Open Circuit

Short Circuit and Open Circuit

Control Valve Tubing

Instrument Tube Bending

Comparators Objective Questions

Comparators Objective Questions

Simple High Level Indicator Circuit

Simple High Level Indicator Circuit

Address Overlapping in Tia Portal

How to Check Address Overlapping in Tia Portal?

DP transmitter Elevated 10 Feet above the Vessel

DP transmitter Elevated 10 Feet above the Vessel

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?