Sequential timer is a widely used circuit in industrial plants because most industrial processes are chain reaction type. As this is a sequential process a sequential timer can be used to implement it. So that each motor will start sequentially say motor 1 will start then after some delay then motor 2 will start and after some delay motor 3 will start. But here i have developed a sequential timer using simple ic555. The ending of the last process triggers the first process. A good domestic application is in washing machines. And thus the cycle continues. That means one process ends and it triggers next. So let us see how it is done. The last process triggers first process when it ends.
The ending of the last.
Sequential timer is widely used circuit in industries because in most of the industries all the processes are of chain reaction type. These sequence timers are micro controller based multi functional and programmable. And thus the cycle continues. Note that the logic of the circuit is identical to that of the circuit in figure 31 4. The last process triggers first process when it ends. When motor starter 1 energizes the normally open auxiliary contact 1m closes providing power to coil 1m and to push button 2.
That means as one process ends it triggers the next. There are total 3 motors to be controlled in a sequence. As this is a sequential process a sequential timer can be used to implement it. These sequence timers are micro controller based multi functional and programmable. A circuit which enables a user to linearly control the speed of a connected motor by rotating an attached potentiometer is called a motor speed controller circuit. So let us see how it is done. Sequential timer is a widely used circuit in industrial plants because most industrial processes are chain reaction type. The ending of the last process triggers the first process. In this circuit push button 1 must be pressed before power can be provided to push but ton 2. When motor starter 1 energizes the normally open auxiliary contact 1m closes providing power to coil 1m and to push button 2.
So that each motor will start sequentially say motor 1 will start then after some delay then motor 2 will start and after some delay motor 3 will start. But here i have developed a sequential timer using simple ic555. In this circuit push button 1 must be pressed before power can be provided to push but ton 2. Sequential timer is a widely used circuit in industrial plants because most industrial processes are chain reaction type. A good domestic application is in washing machines. There are total 3 motors to be controlled in a sequence. So that whole operation will take 10 seconds to start all motors in a sequence. In this circuit auxiliary contacts on the motor starters are used to control the action of the timed relays. When motor starter 1 energizes the normally open auxiliary contact 1m closes providing power to coil 1m and to push button 2. Once the timer is set to wash clothes the motor automatically rotates forward and then backward for fixed periods 10 to 15 seconds with small pauses in between.
The ending of the last process triggers the first process. Sequence control circuit 1 one design that will meet the requirements is shown in figure 31 1. Sequential timer is a widely used circuit in industrial plants because most industrial processes are chain reaction type. So that each motor will start sequentially say motor 1 will start then after some delay then motor 2 will start and after some delay motor 3 will start. But here i have developed a sequential timer using simple ic555. Note that the logic of the circuit is identical to that of the circuit in figure 31 4. A circuit which enables a user to linearly control the speed of a connected motor by rotating an attached potentiometer is called a motor speed controller circuit. Stopping the motors in sequence some circuit requirements may demand that the motors turn off in sequence instead of turning on in sequence. The ending of the last. That means as one process ends it triggers the next.
In this circuit push button 1 must be pressed before power can be provided to push but ton 2. A good domestic application is in washing machines. But here i have developed a sequential timer using simple ic555. So that whole operation will take 10 seconds to start all motors in a sequence. The ending of the last process triggers the first process. Stopping the motors in sequence some circuit requirements may demand that the motors turn off in sequence instead of turning on in sequence. These sequence timers are micro controller based multi functional and programmable. Such sequence timers are micro controller based multi functional and programmable. Note that the logic of the circuit is identical to that of the circuit in figure 31 4. That means as one process ends it triggers the next.
Once the timer is set to wash clothes the motor automatically rotates forward and then backward for fixed periods 10 to 15 seconds with small pauses in between. Sequential timer is a widely used circuit in industrial plants because most industrial processes are chain reaction type. So that each motor will start sequentially say motor 1 will start then after some delay then motor 2 will start and after some delay motor 3 will start. In this circuit auxiliary contacts on the motor starters are used to control the action of the timed relays. In this circuit push button 1 must be pressed before power can be provided to push but ton 2. There are total 3 motors to be controlled in a sequence. The last process triggers first process when it ends. Such sequence timers are micro controller based multi functional and programmable. The ending of the last. The ending of the last process triggers the first process.