Connect The Electric Motor From Washing Machine 4 Wires

Engine from an old washing machine 4 wires how to connect

How an induction motor works?

To understand the principle of its operation, we recall the same picture as in the previous example: a frame (but without half rings) is placed between the magnetic poles. The magnet is made in the shape of a horseshoe, the ends of which are connected.

We begin to slowly rotate it around the frame, watching what is happening: until a certain moment the frame is not moving. Then, at a certain angle of rotation of the magnet, it begins to rotate behind it at a speed lower than the speed of the latter. They work asynchronously, which is why motors are called asynchronous.

In a real electric motor, a magnet is a winding located in the stator slots, to which current is supplied. The rotor is a frame. In its grooves there are short-circuited plates. They call it that. short-circuited.

Connect The Electric Motor From Washing Machine 4 Wires

The engine from the washing machine and a diagram of its connection to the network

The engine is the heart of the washing machine. This device rotates the drum during washing. In the first models of machines, belts were attached to the drum, which acted as drives and provided the movement of the container filled with laundry. Since then, the developers have significantly improved this unit, which is responsible for converting electricity into mechanical work.

Currently, three types of motors are used in the production of washing equipment.

Inverter (brushless)

An inverter motor is a direct drive motor. This invention is just over 10 years old. Developed by a well-known Korean concern, it quickly gained popularity due to its long service life, reliability, wear resistance and its very modest dimensions.

The rotor and stator also act as components of this type of motor, however, the fundamental difference is that the motor is directly attached to the drum, without the use of connecting elements that fail in the first place.

Among the undoubted advantages of inverter motors are simplicity, the absence of parts subject to rapid wear, convenient placement in the machine body, low noise and vibration levels, compactness.

The disadvantage of such a motor is laboriousness. its production requires a lot of costs and efforts, which noticeably affects the price of inverter machines.

Pros of induction motors for washing machines

The drum motor is the heart of the washing machine. The drive in the very first versions of the machines were belts that rotate a container with laundry.

But, today the asynchronous unit, which converts electricity into mechanical energy, has been significantly improved.

often in the circuits of washing machines there are asynchronous electric motors consisting of a stator that does not move and serves simultaneously as a magnetic circuit and a supporting structure, and a moving rotor that rotates the drum. An asynchronous motor works due to the interaction of magnetic alternating fields of these nodes.

Asynchronous motors are divided into two-phase, rare, and three-phase.

The pluses of asynchronous aggregates include:

  • uncomplicated design;
  • easy maintenance by replacing worn bearings and
  • periodic lubrication of the electric motor;
  • silent work;
  • relative cheapness.
  • Of course, there are also disadvantages:
  • low efficiency;
  • big sizes;
  • low power.

Such motors, as a rule, are installed on inexpensive models.

Connecting the motor from the washing machine to 220: a simple diagram

Connection diagram of the engine from the washing machine to 220 V: a detailed description of the simplest diagram.

When a washing machine becomes unusable, most often due to a broken drum, it is usually sent to a landfill. But there is still a fully working electric motor in the washing machine, which can be used to make homemade machines and fixtures.

Next, we will look at how to connect the engine from a modern washing machine to a 220 V network.

On washing machines, automatic machines, collector motors are installed, the connection block for such an electric motor has 6 contacts (there are 4 contacts).

This is how the connection block looks like. The first two white wires go from the engine speed sensor, they are unnecessary for us to connect.

  • Wires. red, brown, come from the stator windings.
  • The two outer wires, gray and green, go from the rotor brushes.

The figure shows a diagram of the motor windings. The stator windings are connected in series with each other, so two wires come out of them.

Now, actually, how to connect the washing machine motor to 220V. Everything is very simple.

  • It is necessary to connect in series the stator and rotor windings, as shown in the diagram.
  • If you need to change the rotation of the shaft in the opposite direction, just swap the wires of the rotor brushes with each other, as shown in this diagram.
  • This is the easiest way to connect, without a speed controller, this connection method is suitable when making an emery, a drilling machine and other homemade products from an engine.
  • In that. the author also shows in detail the connection of the motor from the washing machine.
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Speed ​​control

For proper operation, you need a speed controller

The washing machine motor is characterized by a fairly high rotation speed, so it is advisable to make a special regulator so that the hammer motor works in different speed modes without overheating. For this purpose, you can use a conventional light intensity relay, but slightly modified.

It is necessary to remove the triac from the “washing machine” together with the radiator. the so-called semiconductor device (in the control of electrons, it functions as a controlled switch). Then it is necessary to solder this device into the relay microcircuit, replacing the parts with low power. If you do not know all the nuances of this procedure, it is better to ask for the help of a specialist (electronics or computer technician).

There are times when the engine does new work without the help of the speed controller.

Collector

Collector motors have replaced two-phase asynchronous devices. Three quarters of household appliances are equipped with this type of motor. Their feature is the ability to operate on both AC and DC.

To understand the principle of operation of such an engine, we will briefly describe its structure. The collector is a copper drum, divided into even rows (sections) by insulating “partitions”.

The places of contacts of these sections with external electrical circuits (the term “leads” is used to designate such sections in electrics) are located diametrically, on opposite sides of the circle.

Both brushes are in contact with the leads. sliding contacts that ensure the interaction of the rotor with the motor, one on each side. As soon as any section is powered, a magnetic field appears in the coil.

When the stator and rotor are turned on directly, the magnetic field begins to rotate the motor shaft clockwise.

This is due to the interaction of charges: the same charges repel, different ones attract (for greater clarity, remember the “behavior” of ordinary magnets).

The brushes gradually move from one section to another. and the movement continues. This process will not be interrupted as long as there is voltage in the network.

To turn the shaft counterclockwise, the charge distribution on the rotor must be changed. For this, the brushes are turned on in the opposite direction. towards the stator. Usually miniature electromagnetic starters (power relays) are used for this.

Among the advantages of a collector motor are high rotation speed, smooth change in speed, which depends on voltage changes, independence from the frequency of oscillations of the mains, large starting torque and compactness of the device.

Among its disadvantages, a relatively short service life is noted due to the rapid wear of the brushes and the collector. Friction causes a significant increase in temperature, resulting in the destruction of the layer that insulates the collector contacts.

For the same reason, an inter-turn short circuit can occur in the winding, which can cause a weakening of the magnetic field. An external manifestation of such a problem will be a complete stop of the drum.

Some helpful tips

When connecting the engine that was left over from your old washing machine to another device, you need to keep in mind several important nuances of this process:

  • motors are not connected with a capacitor; no starting winding required.

The transfer case contains wires of various colors, which you just need to deal with:

  • 2 white wires. when connected, they will not be useful, since they are responsible for ensuring that the tachogenerator works normally;
  • red and brown are intended so that it is possible to wind the stator, as well as the rotor;
  • green and gray. for connecting to special brushes made of graphite (most often the same can be said about the brushes of the motor of the washing machine “Indesit”, in the case when they need to be replaced).

Correct connection of wires is the key to the successful operation of the motor

Please note that different motor models may have different colors of wires, but the principle of their connection is the same in all cases.

To detect pairs, it is necessary to ring the wires in turn (those that are intended for the tachogenerator must have a resistance of 60 to 70 ohms).

It is better to glue these wires with electrical tape away from others so as not to get confused. The remaining wires also need to ring to identify pairs.

You can find out how to replace a bearing in a washing machine in our article.

Synchronous motors

Even from school, it is known that when magnets approach close, they attract or repel. The first case occurs with opposite magnetic poles, the second. with the same name. We are talking about permanent magnets and the permanent magnetic field they create.

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In addition to those described, there are variable magnets. Everyone remembers an example from a physics textbook: the figure shows a horseshoe-shaped magnet. Between its poles there is a horseshoe-shaped frame with half rings. On a horizontally located frame, a current was applied.

Since the magnet repels the like poles and attracts the opposite poles, an electromagnetic field arises around this frame, which turns it vertically. As a result, it receives a current opposite to the first case in sign. Reversing polarity rotates the frame and returns to the horizontal plane.

The operation of a synchronous electric motor is based on this principle.

In a real circuit, current is supplied to the rotor windings, which is a frame. The source that creates the electromagnetic field is the windings. The stator acts as a magnet.

It is also made from windings or from a set of permanent magnets.

The rotor speed of an electric motor of the described type is the same as that of the current fed to the winding terminals, i.e. they work synchronously, which gave the name to the electric motor.

Engine from washing machine 4 wires how to connect

If you have an unnecessary washing machine motor, don’t rush to throw it away. The electric motor is used in other spheres of life and economy. If you know how to connect the electric motor correctly, you can get a machine for sharpening scissors and knives. Or make it the driving force behind a concrete mixer.

We will tell you how to connect the motor from the washing machine with your own hands.

Wiring diagram for washing machine electric motor

In order to connect the electric motor to the board or directly to the network, you need to deal with the wires it has. For this you need a multimeter. The motor has three (sometimes four) groups of contacts: The motor winding (can consist of two or three leads with a midpoint); Electric motor brushes (two wire leads); Tachometer (two wire leads); Thermocouple (two leads), the thermocouple is not installed on all motors, and is not used by us (not indicated in the figure).

It is necessary to find the wires of the Tachometer. Usually they are of a noticeably smaller cross-section, and when they “ring” with a multimeter, they can show resistance or ring with a “chime”. The tachometer is located at the back (relative to the pulley) of the electric motor, with wires coming out of it.

Brushes are found by sequential “continuity” of wires. The two wires should ring together and should also ring with the motor manifold.

The winding can have two or three wire leads. It is also found in a serial “continuity” of wires. If you have three leads (with a midpoint), you need to measure their resistance to each other. Two of them should show more resistance, the other end, less resistance. If you choose a winding with a higher resistance, you will get less RPM, but more torque. Conversely, a winding with less resistance will give more RPM but less torque.

Thermocouple wires have two wires and are usually colored white. In our case, they will not be used. Not shown in the figure!

Now, after all the wires have been found, it is necessary to arbitrarily connect one wire from the brushes to one of the wires of the selected winding. The two remaining reasons (from brushes and windings) are connected to a 220V network. If you want to change the direction of rotation of the rotor, you need to change the ends of the connection between the wires of the brushes and the winding.

After you have checked the operation of the electric motor from the mains, now it must be connected to the board. For this, on the reverse side of the board, under the three terminals on it, there are letters “AC” “M” “T”.

“AC”. denotes the terminal to which the 220V mains supply is connected. “M”. designates the terminal to which the motor is connected. The same wires that were connected to the network above in the text. “T”. the terminal to which the wires of the tachometer are connected.

How an induction motor works?

To understand the principle of its operation, we recall the same picture as in the previous example: a frame (but without half rings) is placed between the magnetic poles. The magnet is made in the shape of a horseshoe, the ends of which are connected.

We begin to slowly rotate it around the frame, watching what is happening: until a certain moment the frame is not moving. Then, at a certain angle of rotation of the magnet, it begins to rotate behind it at a speed lower than the speed of the latter. They work asynchronously, which is why motors are called asynchronous.

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In a real electric motor, a magnet is a winding located in the stator slots, to which current is supplied. The rotor is a frame. In its grooves there are short-circuited plates. They call it that. short-circuited.

Connecting the motor from the washing machine machine

Before talking about connecting a washing machine motor, you need to understand what it is. Perhaps someone has long known the wiring diagram for a washing machine electric motor, but someone will hear for the first time.

An electric motor is a machine powered by electricity, which serves as a drive for various mechanisms, i.e. setting them in motion. Produce asynchronous and synchronous units.

Step by step execution of work

Connecting the motor to the washing machine is not difficult. Starting windings and capacitors are not useful to you, it is enough to know how to correctly connect the connections.

  • Connect the ends of the wires from the stator and rotor. Be sure to isolate the contact point.
  • Connect the remaining two wires to a 220 Volt voltage source.

Be careful! When connected to electricity, the engine will start (turn on) from the washing machine. However, it can vibrate strongly, so ensure that the motor is securely located in advance.

The connection was successful. If you need to change the direction of rotation, swap the wires leading to the rotor. See the diagram in the photo:

This starting option is suitable for modern washing machine parts. How to connect an electric motor from an old washing machine? The work is more painstaking than in the first case. You will need a start relay and a momentary button.

  • Set the tester to resistance measurement mode.
  • Apply the test leads to the motor windings comparing readings. We need to find paired windings.

It is important to understand that the working winding always shows less resistance than the starting winding.

According to this scheme, the asynchronous motor of the washing machine is connected:

Let’s take a closer look at how to connect the Washing machine motor according to the diagram. To do this, we will decipher the conventions:

  • SB denotes a toggle button. It allows you to connect the winding to the power supply.
  • The PO is a starting winding that allows torque to be generated. You can coordinate it to one side.
  • ОВ. working winding or excitation winding. Creates a magnetic field for rotation.

You need to supply electricity to the excitation winding. To do this, directly connect it to a 220 Volt network. Short-term power is supplied to the starting winding, only using the (SB) button.

Now you know how to turn on the motor (motor) from the washing machine. To start it, you need to press a button. The direction of rotation is changed according to the previous principle. the wires are swapped.

Motor connection diagram in an old washing machine

Everything is more serious here. You need to find 2 pairs of leads that match each other using a multimeter (toaster). To do this, fix the device on any of the terminals and look for a pair using a probe. The two remaining pins will be the second pair automatically.

Now they determine the location of the working and starting windings by measuring the resistance. The starting (PO), which creates the starting torque, is found by the higher resistance. A disturbance winding (RW) creates a magnetic field.

Self-connection methods

For the engine to work, it needs power. Self-connection to electricity consists in the correct connection of the wires. Therefore, you will need a connection diagram for the washing machine motor.

You need stator and rotor wires to work. But how do you find them? A visual inspection shows a lot of wires. How to decide which one you need?

Let’s consider how to connect an electric motor with 3, 4 and 6 wires.

Look at the motor. There are two wires on the left side. they are not used. The manufacturer often paints them white. For clarity, look at the photo below:

Orange arrows indicate red and brown wires. These are the stator leads. Blue arrows point to wires leading to the rotor brushes. These four wires are needed to connect the motor from the washer.

The color of the wiring may vary from manufacturer to manufacturer. So use a tester to check accurately.

Measure the resistance of each wire to find a pair. Strip the contacts and connect the tester probe to them. Record the readings. Then ring all the wires in turn until each has a pair.

Differences between synchronous and asynchronous electric motors

Outwardly, the engines are difficult to distinguish. Their main difference is the principle of operation. They also differ in the area of ​​use: synchronous, more complex in design, are used to drive equipment such as pumps, compressors, etc. working at constant speed.

For asynchronous ones, with increasing load, the rotational speed decreases. A huge number of devices are equipped with them.