A motor is a device which allows low-horsepower motors to drive a great deal of force on an object with low speed. It consists of a reduction gear train and an electric motor, which both come fully integrated into an easily mountable and configurable system.
AC Motors
The most common and simple industrial motor is the three phase AC induction motor, sometimes known as the "squirrel cage" motor. Substantial information can be found about any motor by checking its (nameplate).
Advantages
The brushed DC motor is one of the earliest motor designs. Today, it is the motor of choice in the majority of variable speed and torque control applications.
Advantages
This code is for DC motor interfacing with Microcontroller with a switch is connected to P2.7 pin and monitor the status by rotating DC motor in clockwise direction and anticlockwise direction.
If you want to make motor to move in positive direction, give logic 1 to =ve terminal of the motor and logic 0 to -ve. Similarly, you can move motor in backward directly by giving reverse polarity.
Motor Types:
Industrial motors come in a variety of basic types. These variations are suitable for many different applications. Naturally, some types of motors are more suited for certain applications than other motor types are. This document will hopefully give some guidance in selecting these motors.- AC Motors
- DC Motors
- Brushless DC Motors
- Servo Motors
- Brushed DC Servo Motors
- Brushless AC Servo Motors
- Stepper Motors
- Linear Motors
AC Motors
The most common and simple industrial motor is the three phase AC induction motor, sometimes known as the "squirrel cage" motor. Substantial information can be found about any motor by checking its (nameplate).
Advantages
- Simple Design
- Low Cost
- Reliable Operation
- Easily Found Replacements
- Variety of Mounting Styles
- Many Different Environmental Enclosures
- Expensive speed control
- Inability to operate at low speeds
- Poor positioning control
The brushed DC motor is one of the earliest motor designs. Today, it is the motor of choice in the majority of variable speed and torque control applications.
Advantages
- Easy to understand design
- Easy to control speed
- Easy to control torque
- Simple, cheap drive design
- Expensive to produce
- Can't reliably control at lowest speeds
- Physically larger
- High maintenance
- Dust
Interfacing:
L923D is the current driver IC acts as an intermediate IC
This code is for DC motor interfacing with Microcontroller with a switch is connected to P2.7 pin and monitor the status by rotating DC motor in clockwise direction and anticlockwise direction.
Code:
#include "REG52.h"
#define SW P2^7
#define Enable P1^0
#define MTR_1 P1^1
#define MTR_2 P1^2
void main ()
{
SW=1; //DC motor will rotate in anticlockwise direction.
Enable=0;
MTR_1=0;
MTR_2=0;
while(1)
{
Enable=1;
if(SW==1)
{
MTR_1=1;
MTR_2=0;
}
else
{
MTR_1=0;
MTR_2=1;
}
}
}
Explanation of code:
- Connect the motor +ve and -ve to any port of microcontroller through L293D motor driver IC. As, single pin of microcontroller can not directly drive the motor. Now, give "logic 1" to one end and other "logic 0" so that motor can rotate.If you want to make motor to move in positive direction, give logic 1 to =ve terminal of the motor and logic 0 to -ve. Similarly, you can move motor in backward directly by giving reverse polarity.
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