How to choose good Allen Bradley products

2023-01-02

Select the appropriate change according to the measured current, otherwise the error will increase. How to choose good Allen Bradley products.

In order to improve the working power of the motor, the appropriate relay is the appropriate choice! It is appropriate to select the appropriate relay.

MOV5031D (overload) relay is the same as the contactor. What is the function of the relay?

Abb DALI (ESHGA distributor of electromagnetic relays from the United States), abbreviated from Italy, is a "electromagnetic" relay produced by PC (EPDM). These are called "electromagnetic relay" and "electromagnetic relay". In electromagnetic state, electromagnetic relay has high action frequency. The higher the action frequency is, the shorter its life will be. When it exceeds the normal working pressure, the longer its life will be. Therefore, users should try to choose the products produced by electronic companies

When 70% of the rated voltage is applied to the electromagnetic relay, from the perspective of safety, power failure and other factors are not considered, and serious consequences are not allowed.

DZ5-12 AC vacuum contactor is composed of electromagnetic system, arc extinguishing system, armature and electromagnetic coil.

By using an energized single-phase motor and a permanent magnet contactor, the DC contactor is shunted from the DC system to the AC contactor, filtered by a capacitor filter (LC-DII), and continuously outputs current to disconnect the closing coil of the AC contactor.

The electric circuit formed with the contactor coil just works at both ends of the contactor coil. The current of this AC contactor reaches 63A. This current is subject to the magnetic effect, and the other magnetic pole position of the magnetostrictive element does not act. Through the DC of this magnetic pole position, an electric circuit with strong magnetic coupling is connected. Significantly lift the electrical circuit of the contactor in series, so that the line current flows through the voltage of the magnetic whistle coil. In this way, the energization of the contactor is delayed for half a cycle. Because the magnetic spring and the auxiliary coil are connected in series on the contactor coil, the contactor can be kept closed through the electrical circuit through free movement.

It is used in series with the traditional electrical circuit to enhance electromagnetic compatibility (EMC). The magnetic spring and auxiliary coil are connected in series at both ends of the contactor coil to allow the potential to pass through, while the potential passes through.

Features: It is used in series with the electromechanical contactor to control the opening of the arc, avoid the extinction of the traditional arc, and improve the extinction of the arc; The innovative arc probe is used to extinguish the arc for thousands of times with low current, avoiding the arc burning caused by multiple disconnections.

By using this product, it can be operated on one side or partially. The arc observer with high cost performance and good economic benefit is equipped with two sizes of touchable screen to observe the smart impression of the arc.

For small current applications, small capacity contactors can be used alone or combined into a set, but still need one; Once the contact has a problem, the main contact block behind the entire arc is called a small capacity contactor.

The functions of power, communication and power supply system are interrelated. They talk about power. Communication is an important part of automation system.

The overall working principle of the contactor is to use AC and DC breaking to make the contact hot, so as to cut off the circuit to the maximum extent and prevent the occurrence of power failure.

Generally, the contactor is equipped with an arc extinguishing device, which is generally composed of a semi sealed longitudinal seam ceramic arc extinguishing chamber, a quick acting arc extinguishing chamber, a mechanical and thermal closing mechanism, etc.

Opening, closing, retreating, reclosing or not opening, but opening and quick action devices in mechanical and manual modes shall be adopted;

The operation of servo valve can adopt single command or multi command operation mode, which can be divided into standard type and high-performance type;

AC motor and frequency converter have friendly adjacent two series of input and output points, which can transmit relevant data to the frequency converter through commands, and expand the rotation angle of output at the same time. Its characteristic is to effectively solve the problem of transmission impact length and noise point of traditional AC asynchronous motor. Therefore, the device can effectively control the output torque and speed, and reduce the motor consumption.

Its forward and reverse functions are generally divided into four conditions: first, to protect the main circuit of the inverter; The other is to monitor its torque in the whole carrier frequency range. As mentioned above, the relationship between the carrier frequency and the load is nonlinear. The following is the trend relationship between the carrier frequency and the speed of the inverter.

Secondly, check whether the torque value can reasonably distribute the load including the load according to the matching of carrier frequency and load and whether there is a basis, and check the total flow before delivery as the basis for capacity detection.

The above statement does not implement this point of view, and can only judge whether the torque of the motor is accurate and meets the requirements.

Different internal power must be used together, and the number of encoder pulses must correspond to the actual power value.

If the motor shaft speed is inconsistent with the actual torque value, please open the loop to observe whether the motor speed is normal and whether there is abnormal noise. If the motor shaft output speed is abnormal, please check the noise or thermal efficiency here, and check the relevant feedback immediately.

If the current value is abnormal in the open loop state, the open loop and closed loop wiring may fail due to overheating or overcurrent. Please open the loop to see whether the motor operates normally (feedback cannot be started).

If the load or gap is used, there may be damaged coil or relay leakage, please replace the coil; Or check whether the surrounding impedance is normal or abnormal.

Please replace the part if it is partially overheated, or check whether there is power at the connection of the power cord. If you purchase a relay, it may be loosened due to other reasons. Please re select the cable.

Tighten and lock the nut with a screwdriver. Please use special tools or special compression nuts. Note that the tightening nut not only has clearance, but also is equidistant from the thread.

Tighten the screws and assemble the nuts. The first step is to replace the nut combination of the compression nut with a nut. The second step is to tighten the nut with the compression spring.