• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Get free circuit help 24/7

  • 1000+ Circuits
  • Privacy Policy
  • About Us
  • Contact
  • Disclaimer
  • Videos – Circuit Test Results
You are here: Home / Timer and Delay Relay / 3 Stage Timer Circuit for Industrial Camshaft

3 Stage Timer Circuit for Industrial Camshaft

Last Updated on July 6, 2019 by Swagatam Leave a Comment

The post explains a simple sequential timer designed for implementing a specified set of actions involving a 3 step relay activation which in turn is used for executing the desired mechanisms. The idea was requested by Mr. Ali.

 Technical Specifications

I look at your site occasionally and this time round I am looking for a 3 stage timer. I have on your site and several others only found 2 stage timers.

I sincerely hope that I am not putting you into any inconvenience by asking you if you could put a schematic together and mail it to me. If there are any costs involved please let me know up front. The requirements are as follows.

Stage 1 is a camshaft which,at the press of a switch, is driven by a windscreen wiper motor from point A to point B in a matter of milliseconds.

At point B stage 1 should swich off and activate stage 2.After approximately 100 to 200 (max) milliseconds stage 2 should switch off and re activate stage 1 and drive it back back to rest.The time factor for stage 1 and 3 should not exceed 3 seconds(again calculated in milliseconds).

(Stage 2 activates a set of heaters through a relay to bond material.) I could play around with the caps and pots if need be to calibrate it to my requirements.

I just have a basic knowledge in this subject ,hence I would appreciate as much detail that you could provide .

Thanking You and looking forward to your response.

Ali.

3 Stage Industrial Camshaft Timer Circuit

The Design

The idea of the proposed camshaft 3-stage timer actuator circuit can be understood with the following points:

Although the idea sounds straightforward, implementing it practically appears to be complex.

Referring to the figure above, when the circuit is powered, the 0.1uF capacitor across pin15 and the positive of the IC resets the IC to a standby position.

When the shown push button is pushed, pin14 of the IC 4017 receives a clock signal which prompts it to shift a logic high to its pin2, pin2 transistor driver actuates the relay and the connected motor is activated to reach a given destination.

When it reaches the destination, reed#2 which is positioned to anticipate this, activates causing a pulse clock to reach pin14 of the IC, which in turn forces it to shift a logic high from pin2 to pin4. This action instantly stops the motor on the spot.

Simultaneously, the "high" from pin4 yet again causes a pulse to hit pin14 of the IC, however due to the presence of Rx and Cx, it's delayed by around 100 to 200ms. After this period of time, pin14 is toggled which allows the IC to forward the logic high from pin4 to pin7.

Pin7 instantly actuates the connected relay which reverses the motor polarity and reverts it to its original position. At the original position reed#1 is positioned to anticipate this, it actuates and resets the IC through the associated 0.1uF capacitor to the original standby position, for the initialization of the next cycle  via the push button.

For integrating the heater stage, the junction of Rx, Cx can be configured with an identical relay driver stage and the contacts integrated with the heater.




Previous: Solving Inverter “No Load Auto-Shutdown” Problem
Next: How a Potentiometer (POT) Works

About Swagatam

I am an electronic engineer (dipIETE ), hobbyist, inventor, schematic/PCB designer, manufacturer. I am also the founder of the website: https://www.homemade-circuits.com/, where I love sharing my innovative circuit ideas and tutorials.
If you have any circuit related query, you may interact through comments, I'll be most happy to help!

You'll also like:

  • 1.  Timer Controlled Submersible Pumpset Circuit
  • 2.  Stepper Motor Driver Circuit using IC 555
  • 3.  Simple Kitchen Timer Circuit – Egg Timer
  • 4.  Washing Machine Motor Agitator Timer Circuit
  • 5.  IC 4060 Latching Problem [Solved]
  • 6.  How to Make a Classroom Debate Timer Circuit

Please Subscribe (Only if you are Genuinely Interested in our Newsletters)


 

Reader Interactions

Your Comments are too Valuable! But please see that they are related to the above article, and are not off-topic! Cancel reply

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

Primary Sidebar

Electronic Projects Categories

  • 3-Phase Power (15)
  • 324 IC Circuits (19)
  • 4017 IC Circuits (51)
  • 4060 IC Circuits (25)
  • 555 IC Circuits (92)
  • 741 IC Circuits (18)
  • Amplifiers (48)
  • Arduino Engineering Projects (82)
  • Audio Projects (83)
  • Battery Chargers (75)
  • Car and Motorcycle (87)
  • Datasheets (44)
  • Decorative Lighting (Diwali, Christmas) (31)
  • DIY LED Projects (81)
  • Electronic Components (96)
  • Electronic Devices and Circuit Theory (34)
  • Electronics Tutorial (99)
  • Fish Aquarium (5)
  • Free Energy (34)
  • Games (2)
  • GSM Projects (9)
  • Health Related (16)
  • Heater Controllers (23)
  • Home Electrical Circuits (98)
  • Incubator Related (6)
  • Industrial Electronics (25)
  • Infrared (IR) (39)
  • Inverter Circuits (93)
  • Laser Projects (10)
  • LM317/LM338 (21)
  • LM3915 IC (24)
  • Meters and Testers (52)
  • Mini Projects (152)
  • Motor Controller (64)
  • MPPT (7)
  • Oscillator Circuits (12)
  • PIR (Passive Infrared) (8)
  • Power Electronics (32)
  • Power Supply Circuits (64)
  • Radio Circuits (9)
  • Remote Control (46)
  • Security and Alarm (54)
  • Sensors and Detectors (114)
  • SG3525 IC (4)
  • Simple Circuits (72)
  • SMPS (30)
  • Solar Controllers (60)
  • Timer and Delay Relay (51)
  • TL494 IC (5)
  • Transformerless Power Supply (8)
  • Transmitter Circuits (36)
  • Ultrasonic Projects (12)
  • Water Level Controller (45)

Follow Homemade Circuits

Facebook
Twitter
YouTube
Instagram
My Facebook-Page
Quora

Feeds

Post RSS
Comment RSS

Circuit Calculators

  • AWG to Millimeter Converter
  • Battery Back up Time Calculator
  • Capacitance Reactance Calculator
  • IC 555 Astable Calculator
  • IC 555 Monostable Calculator
  • Inductance Calculator
  • LC Resonance Calculator
  • LM317, LM338, LM396 Calculator
  • Ohm’s Law Calculator
  • Phase Angle Phase Shift Calculator
  • Power Factor (PF) Calculator
  • Reactance Calculator
  • Small Signal Transistor(BJT) and Diode Quick Datasheet
  • Transistor Astable Calculator
  • Transistor base Resistor Calculator
  • Voltage Divider Calculator
  • Wire Current Calculator
  • Zener Diode Calculator

© 2021 · Swagatam Innovations

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.Ok