Introduction to the wiring rules of Sunland inverter

The so-called "hum" sound, that is caused by the frequency of the inverter's output waveform carrier, generally if the inverter you use is a fixed carrier, at the moment the motor is screaming, the human ear is more stimulated, then you can adjust the carrier frequency (inverter skills manual function table ...

Sunland HOPE530 series inverter is a high-performance, high-reliability intelligent controller, widely used in a variety of industrial occasions. It is easy to operate, diversified equipment and high quality, and has become one of the intelligent power control equipment trusted by users. ...

The difference between a voltage converter and a current converter Voltage inverter and current inverter are two different operating principles, for example, the operating principle of voltage inverter is mainly to regulate the voltage source, and the voltage source regulates the current to achieve the effect of conditioning, while the current inverter is a direct ...

The external terminals of the inverter, RH, RM, RL, are speed control terminals. Through the combination of these terminals, three-speed and seven-speed control can be completed. In addition, the other terminals can be redefined, and the fifteen-speed speed can be controlled. ...

The selection of the inverter should be considered according to the type of controlled object, speed regulation scale, static speed accuracy, starting torque, etc., so that it can be easy to use and economical together with meeting the process and production requirements. According to the different forms of devices, it can be divided into four types, which can be divided into four types according to the controlled motor power and field device ...

It is necessary to separate the signal line from the power line: when using analog signals for long-distance control of the inverter, in order to reduce the disturbance of the analog amount from the inverter and other equipment, please separate the signal line of the control inverter from the strong current circuit (main circuit and sequential control circuit). Inverter ...

1. Causes of overcurrent There are many reasons for the occurrence of overcurrent, including soft and hard problems. 1. Causes of soft failures When the acceleration or deceleration time in the inverter parameters is set too short, and the motor power is heavy, it means that in the acceleration, the inverter's ...

There are many special faults, which come and go, looming, making it impossible to judge and deal with. At this time, you can clean the circuit board with water or alcohol, and brush off the dust and rust on the circuit board with a soft brush, especially pay attention to the solder joints are dense, and the circuit near the 0 volt copper layer is also ...

The supplier of the supporting equipment of the inverter reminds you that the voltage waveform output by the inverter is similar to a sine wave, but not a real sine wave. Its waveform contains a large number of harmonic components, especially the higher harmonics will increase the output current of the inverter, causing the motor winding to heat up, and produce oscillation.

The commissioning of the electrical system refers to the commissioning of the entire high and low voltage system. The power supply commissioning of civil electrical projects such as general residences, schools, office buildings, hotels, and shops shall be carried out in accordance with the following provisions: (1) About the commissioning of the belt in the distribution room ...

The operating principle of the inverter determines that it will have a certain disturbance, which may bring EMC (electromagnetic compatibility) problems to the equipment or system, and the inverter, as an electronic device, will also be affected by external electromagnetic disturbance. Below...

1. Condensation The temperature difference in the workshop is large, and the inside of the inverter presents condensation. 2. Impact load. The load fluctuates greatly, and the output current of the inverter suddenly increases, resulting in module damage. 3. The inverter is overloaded in the start, ...

1. The contact screen all-in-one machine adopts the new contact identification technology, and the user only needs to touch it lightly on the contact screen without passing the pressure sensing to complete the operation. Care must be taken not to use too much force or sharps to scratch the surface of the contact screen. ...

When the peripheral equipment and the inverter share the same power supply, the disturbance generated by the inverter is transmitted against the power line, which will cause other equipment in the same system to malfunction. The following methods can be adopted: (1) The input device of the inverter is equipped with an EMI filter or a ferrite common-mode filter (magnetic ring) ...

At present, the domestic air compressor market takes the goal of energy saving, environmental protection and cost reduction as the primary demand, and the new products developed are very popular. However, economically speaking, it cannot completely replace the conventional screw air compressor with large area and large capacity in use. Therefore, the use of inverter technology to ...

1. Overpressure leads to brake pipe breakdown. The so-called overvoltage of the inverter refers to the fact that the inverter voltage composed of various reasons exceeds the rated voltage, which is reflected in the DC voltage of the inverter DC bus. The overvoltage alarm generally appears at the time of shutdown, and its main ...

The method of judging the damage of a power element in the rectifier part is to manipulate the single conductivity of the rectifier element, and the positive and negative resistance values should not be consistent when the static value is general, and the specific method is as follows: The three-phase bridge rectifier of the rectifier part may be two...

1. Make proper grounding After a detailed investigation of the site, we can see that the grounding situation on the site is not very ambitious. The correct grounding can not only be useful for the system to press the external disturbance, but also to reduce the disturbance of the equipment itself to the outside world, which is the most useful for dealing with the disturbance of the inverter.

Sunland inverter and soft start is a first-class, reliable and reliable motor control system, which is able to meet the needs of various applications. The advantages of expected Sunland inverters and soft start are: 1. Performance: Expect Sunland inverter and soft start...

There are two ways to park a drive. One way is called "free parking". It is to quickly "power off" the motor, so that the motor can slide and park by its own inertia force (OFF2 parking); The other way is called "braking parking". So this "brake parking ...