How the motor determines UVWU2V2W2 leads

Power-on test method: first use the ohmic file of the multimeter to divide the six lead heads into three groups, and then connect any two groups in series to the AC power supply, and connect a bulb in series on the third group (15 or 25W, high power is not lit). After power-on, if the bulb is on, it means that the two groups in series are connected end to end; If the bulb does not light up, it means that the tail is connected or the head is connected, and so on.

Battery orientation method: first use the ohmic gear of the multimeter to divide the six lead ends into three groups, then connect the two wires of the first group to the positive and negative poles of the milliampere file of the multimeter respectively, press the first wire of the second group on the negative end of the dry battery with your finger and touch the positive end of the battery with the other end, if the pointer of the multimeter is biased to the right, it means that the positive end of the multimeter and the negative end of the dry battery are the head (tail), if the pointer is biased to the left, it means that the positive end of the multimeter and the positive end of the dry battery are the head (tail), and so on.

Steering method: for small motors, do not use a multimeter can also distinguish the beginning and tail of the winding, first distinguish the two wire ends are the same phase, and then take a wire head for each phase, connect the three heads into a point, and connect the point to the ground, and use two 380V power cords to connect the two lead heads of the motor in order to observe the direction of rotation of the motor. If it is connected three times and the motor turns the same, it indicates that the three-phase head and tail wiring is correct; If it is connected three times, and the motor is reversed twice, it indicates that the phase winding that has participated in these two reversals is reversed.

For example, the first phase A and B, the second phase B and C are reversed, and phase B participates twice, indicating that phase B is reversed, and the two wire ends of phase B can be reversed.

1) Use the multimeter "" file to determine which two heads belong to the one-phase winding.

2) Choose one of the windings in each phase to connect together, and then connect the other three heads together. Then connect the DC milliampere of the multimeter between the nodes, and turn the motor rotor by hand: If the watch hand does not swing, it means that the two nodes are the beginning and end of the windings of each phase.

If the watch hand wiggles, it indicates that there is a mixture of heads and tails in the node. At this time, the two heads of any phase winding can be reversed and measured again. If the watch hand is still oscillating, the two heads of the other phase winding are reversed and measured again.

If the hand is still oscillating, the two heads that were switched back the first time (until the hand does not wobble).

When the motor is wired, the U, V, and W terminals all represent the access terminal of the motor winding.

There are generally two types of motor wiring methods: star connection and triangle connection.

Generally, below 4kw, the star connection method is used. Above 4kw, the triangular connection method is adopted.

The UVW of the three-phase motor represents the three sets of windings of the motor respectively, and the terminal blocks of U1, V1, W1, U2, V2, and W2 represent the three sets of windings are mostly used.

Three-phase alternating current is a form of transmission of electrical energy, referred to as three-phase electricity.

Three-phase electricity is a group of three-phase alternating current with equal amplitude, equal frequency and 120° phase difference between each other, which is generated by a three-phase generator with three windings, and is a commonly used power supply in industry.

The difference between three-phase power supply and single-phase power supply: the power supply sent by the generator is three-phase, and each phase of the three-phase power supply and its neutral point can form a single-phase circuit to provide users with power energy.

Servo motor UVW is one of the general-purpose three-phase motors. The movement of the servo motor is controlled by the controller, which can achieve high speed and precision control. Its three wires each represent a three-phase power supply, so that the motor can get a stable power source**.

The name of this line ** is derived from the shape of its corresponding current, some say it is a prime number, others say it is inspired by the Greek alphabet.

The servo motor UVW line represents the three-phase power supply of the motor, which is very important in electrical engineering. Servo motors are more accurate than other motors and are often used in a wide range of demanding applications such as industrial machinery, medical equipment, vertical automation control systems, semiconductor equipment, and robotics. The existence of this kind of line can ensure the running quality of the servo motor.

In addition to servo motor UVW wires, there are other types of wires, such as single-phase and duplex wires. However, these lines lack phase differences and are not as stable as three-phase currents. Therefore, in many applications, servo motor UVW lines are often preferred.

In a word, the servo motor UVW line is an indispensable part of the servo motor. It provides a stable power supply to ensure the accuracy and speed of the motor. Servo motors are commonly used in many applications that require high precision and high torque output, and are able to respond to the corresponding motion instructions based on the desired position, velocity, and acceleration.

The impact of this case is as follows:1. The speed of the motor is unstable, which may cause noise or vibration.

2. The output torque and power of the motor are unbalanced, which may lead to the unbalanced combustion load of the negative belt of the motor, and it is easy to burn out the motor.

3. The heating of the motor is intensified, which may reduce the life of the motor. In addition, if the current of UVW1 and UVW2 is found to be inconsistent, you should check whether the motor is wired correctly, if it is wired correctly, it may be due to the unstable power supply voltage or the different currents caused by the motor failure. Therefore, it is necessary to check whether the supply voltage is false and whether the current of the motor is within the normal range.