Wiring specification of inverter control cabinet - Senland

1. What does open-loop mean in the use of inverters? The speed detector (PG) is installed on the motor equipment in operation, and the speed response of the actual speed is sent to the control equipment, which is called "closed loop", and the speed detector that does not use PG is called "open loop". Most general-purpose drives are open-loop ...

After the inverter selection is completed, it is necessary to consider whether other peripheral equipment needs to be equipped according to the actual situation of the site. The peripheral equipment for frequency converter selection mainly includes circuit breakers, reactors, contactors, braking resistors, etc. 1. Circuit breaker ...

1. Common faults of motor heating up too high or smoke motor Causes: 1. Excessive load; 2. Two-phase operation; 3. Blocked air duct; 4. The working temperature is too high; 5. Interphase or inter-turn short circuit fault of motor stator winding; 6. Motor stator winding grounding device; 7. The power supply voltage is too high or too low; Overhaul...

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. 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- ...

The direct torque control (DTC) function of the inverter is another high-performance communication frequency conversion speed regulation system developed after vector control. In the mid-80s of the 20th century, the German scholar Depenbrock proposed the theory of direct torque control in 1985, and his idea was to combine the electric motor and the inverter.

1. The control accuracy of the vector type is higher than that of the general type. 2. The vector type has a large output torque at low speed, which can make the motor get a larger starting torque, and is suitable for use in the occasion of heavy load starting, such as: high-power long belt, hoist, etc. If it is used in some of the more common fields ...

1. Phase alignment method of incremental encoder The alignment between the phase of the UVW electronic transmutation signal and the phase of the rotor pole, or the phase of the TV spot, of the incremental encoder with the signal exchange is as follows: 1) Use a DC power supply to pass the UV winding of the motor to less than the amount of ...

1. Select the inverter according to the load characteristics, such as the load is constant torque load, you can choose Siemens MM440 inverter, ABB ACS800 series inverter, etc.; If the load is a fan or pump load, you can choose Siemens MM430 inverter, ABB ACS510 series inverter, etc. 2、 ...

When various factory equipment uses frequency conversion speed regulation, harmonic disturbance will occur on the power supply side and motor side of the inverter (VFD), which will form electromagnetic disturbance to the power supply network and other electrical equipment near the VFD. In addition, in order to ensure the long-term reliable operation of the VFD, the wiring of the VFD is very important. ...

Hope Senlan inverter control panel button function diagram 1. The "FUNC/DATA" button is a programming key, press this button once to convert the operation mode, and press it again to read and write the utility code. 2."S ...

According to the test, the service life of the inverter is halved for every 10°C increase in the operating ambient temperature. For this reason, in daily use, a reasonable maintenance cycle and guidelines should be formulated according to the actual operating environment and load characteristics of the inverter.

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...

Recently, it is expected that Sunland will successfully participate in the 8th Guangxi World Sugar Industry Skills and Equipment Expo with excellent inverter products. According to the expected Sunland company leakage, the exhibition of the World Sugar Industry Skills and Equipment Expo, throughout the exhibition to domestic equipment manufacturers, there is no lack of foreign outstanding enterprises, exhibitors ...

In recent years, with the development of power electronics skills, the frequency conversion speed regulation skills have been very mature, practice has proved that the use of frequency conversion speed regulation in fans, pumps and loads can save 20%-50% of the electric energy, and the use of frequency conversion speed regulation can bring the following advantages in the future, its biggest advantage is that it has ...

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. ...

In general, there is a problem with the maintenance trip of the VFD. If you look at the faulty code, you can see what kind of fault is causing it. 1. The selection talent of VFD may be too small; Generally, when selecting VFD, it should be about 20% larger than the rated power of the motor, so that when the motor reaches full load...

It is hoped that Sunland inverter is mainly used in three-phase asynchronous AC motor to control and adjust the motor speed. Sunland inverter is mainly composed of microprocessor, including rectification, filtering, inverter, brake, drive, detection, etc. In order to achieve the purpose of changing the power supply voltage, according to the actual needs of the motor...

A frequency converter (VFD) is an electrical energy control device that converts a power supply to another frequency by using the on-off effect of power semiconductor equipment. It can realize the soft start, frequency conversion speed regulation, improved operation accuracy, power factor, overcurrent/overvoltage/overload protection of AC asynchronous motor, etc.