Ensure the normal operation of the inverter in a humid environment

Frequency converter is a widely used equipment in modern factories. This is a very expensive new type of equipment, and the maintenance price of the inverter is also very expensive, so in the process of using the inverter, we should pay attention to the use of the inverter. Thing...

1: In the operation of the motor, if dust, water stains and other debris enter its interior, it will constitute a short-circuit medium, which can damage the wire insulation layer, form an inter-turn short circuit, increase the current, increase the temperature and incinerate the motor. Therefore, dust, water stains and other debris should be prevented from entering the motor.

After inspection, the circuit board of the machine is composed of a fan switching power supply board, a control board with a switching power supply and a driving board, etc., the fan power supply and the control board operation power supply are independent of each other, the fan power supply output is normal, and the control board operation power supply is not output due to the problem. ...

The thyristor communicates the voltage regulation and soft starts The communication and voltage regulation soft engine of the thyristor is mainly to change the connection method of the thyristor, and the traditional connection method is changed to connect to the three windings, so that the power supply of the thyristor is completed by the method of parallel connection. Thyristor soft starters have a strong ...

There is a circuit breaker QF and a communication contactor KM between the power supply and the inverter, when the inverter does not need to be used for a long time. or when the equipment is overhauled, the circuit breaker is used as an isolation switch, which can block the power supply and ensure the safety of maintenance. It has maintenance functions such as overcurrent and undervoltage. The main power of the inverter ...

1. Incoming line maintenance Incoming maintenance is the maintenance of the user's inlet end and inverter, including lightning protection maintenance, grounding maintenance, phase loss maintenance, inverted phase maintenance, unbalance maintenance, overvoltage maintenance, transformer maintenance and so on. These maintenance devices are generally installed at the input of the inverter ...

Belt conveyor is a kind of continuous conveyor, which is one of the main types of fixed or escorted cranes. Belt conveyor is the use of friction to convey the dynamic, with belts, steel belts, steel fiber belts and chemical fiber belts as a kind of compliance with the transmission of materials and traction operations.

1. How to distinguish between heavy faults and light faults According to the occurrence time of inverter faults, we can divide the types of faults into two categories: sudden faults and intermittent faults: (1) The sudden fault of inverter repair refers to the failure of the equipment when it is running, without warning.

In the process of repairing the inverter, we can find that because of the back electromotive force in the stator winding, the electromotive force in the synchronous generator state and the self-induced electromotive force in the self-loop rotor, the current impact will inevitably have a negative impact on the motor, the inverter (Variable-frequency ...

In the 90s of the 20th century, PLC has formed a variety of PLCs: micro, small, medium, large and giant. According to the number of I/O points, it can be divided into five types: micro PLC (32 I/O), small PLC (256 I/O), medium PLC (1024 I/O), large PLC (4.69 I/O), and giant PLC (8195 I/O). ...

There are many setting parameters of the inverter, each parameter has a certain selection scale, and the inverter can not work normally due to the improper setting of individual parameters in use, so it is necessary to set the relevant parameters correctly. ...

(1) The VFD should be installed in the control cabinet. (2) The VFD is best installed in the center of the control cabinet; The VFD It should be vertically installed with the top and bottom protected from large parts that may obstruct the exhaust and intake. (3) VFD control cabinet or partition, or the upper and lower parts of the necessary device ...

Most VFDs are suitable for -10°C-50°C, and if the temperature is too low, the VFD will be affected. Precautions for low-temperature operation of VFD: 1. VFD should be operated in an environment above minus 10°C as much as possible, preferably indoors.

The motor is able to rotate, but the operating current exceeds the rated value, which is called an overload. The fundamental reflection of overload is that although the current exceeds the rated value, the fluctuation of the excess is not large, and it generally does not constitute a large inrush current. 1. The main reason for overload (1) Excessive mechanical load ...

1. Wiring of fire emergency lighting Generally, the flame retardant wire is used to wear the metal pipe and the thickness of the protective layer is ≥ 30mm, in the decoration project, when the emergency lighting circuit can only be applied to the ceiling, the heat-resistant or fire-resistant wire should be selected and the fire-resistant and heat-resistant matching should be considered.

1.HG1000 high-performance light-load intelligent inverter, the most cost-effective, the new series is widely used in medicine, food, packaging, cable, printing and dyeing, washing, centrifuge, dehydrator, sewage treatment, HVAC, constant pressure water supply, constant temperature control, flow control and other industries, such as fans and pumps, ...

1. Please explain the maintenance function of the inverter? (1) After detecting the abnormal situation, the correction action will be carried out automatically, such as overcurrent loss rate prevention, regeneration overvoltage stall prevention. (2) After detecting the abnormality, the PWM control signal of the power semiconductor device is closed, so that the motor can park automatically. As...

1. Please clarify the maintenance function of the inverter? (1) After detecting the abnormal situation, take the initiative to correct the action, such as overcurrent loss speed prevention, regeneration overvoltage stall prevention. (2) Block the power semiconductors after detecting the abnormality...

Hope Sunland inverter is a high-performance inverter product, which has high operational reliability, high energy efficiency, strong control performance and long service life. Hope Sunland inverter has been widely used in industrial process production control, machinery control, water treatment, construction and transportation and other fields. This article will start with ...

1. Delta's super password-B series: 57522; - H-series: 33582; S1 series inverter universal password: 575222. Second, Huifeng inverter (that is, now Ou Rui inverter), the general super password of its products is: 18881500-G 1500-P 1000- ...