How to Change the Direction of a DC Motor?

Electrical
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First and foremost, find the rotational force of a DC motor, often known as torque. A DC motor’s torque is determined by the factors listed below.

If we reverse the direction (or) change the polarity of the field via the armature wires, the motor’s direction will reverse.

But make careful you invert one factor at a time, such as the armature (or) field wires. If not, the motor will continue rotating in the same direction. Reversing the field excitation voltage usually causes the DC motor to reverse direction.

Typically, DC motors are configured in a fixed direction of rotation to accomplish specific functions.

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However, there are conditions when it is necessary to change the direction of rotation, such as with motors for artillery or missile launchers. These motors should be capable of moving in both directions.

Overall, there are two ways you can reverse the direction of the DC motor:

  • Change the polarity of the supply circuit (or) field wires.
  • By varying the polarity of the armature supply.

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What is the direction rule for DC motors?

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Fleming’s left-hand rule is a method that can be utilized to ascertain the direction of rotation of the DC motor conductor. When both the direction of the magnetic field & the direction of the current are known, this method is utilized to determine the direction of the force that is exerted on a conductor that is placed in a magnetic field.