Simply put, DC motors can turn in either direction (clockwise or counter-clockwise) and can be easily controlled by inverting the polarity of the applied voltage. Strictly speaking, the motors can actually create a force in either direction.
What happens if motor runs in reverse direction?
If the motor is running the wrong direction, that means it is not in the correct phase sequence. This happens to be an easy fix: all you need to do is swap any two the power leads to flip/reverse the magnetic field, and the most common practice is to switch lines 1 and 3.
How do you change the rotation of a DC motor?
The direction of rotation of DC series motor may be reversed by changing the polarity of either field or the armature winding.
What would cause a fan motor to run backwards?
Watch out: yes it is indeed possible for some electric motors to run “backwards” following damage to the motor’s start capacitor or windings. … For example the blower fan motor in an air handler can start and run backwards as can some air conditioner compressor unit cooling fan motors.
What causes a condenser fan motor to run backwards?
An abrupt cycle of power can cause a motor to run backwards. If you turn the power off again and wait 10 seconds or so (enough for blade to stop spinning) it should run the right way. Put the capacitor back the other way and try again.
Which DC motor is used for conveyor?
So that, the DC series motor is used in conveyors as it provides very high starting torque, which is practically 5 times the rated torque. Applications of different DC motors are given below. DC Series wound motor: It has a very high starting torque.
What is a DC series motor?
Series DC motors are a group of self-excited DC motors in which the field coil is connected in series to the armature winding and thus a higher current passes through it. A series DC motor mission is to turn the electrical energy into mechanical one based on electromagnetic law.
What is the chief purpose of a DC motor starter?
Starters are used to protect DC motors from damage that can be caused by very high current and torque during startup. They do this by providing external resistance to the motor, which is connected in series to the motor’s armature winding and restricts the current to an acceptable level.