1. Connect X (switching input) drive terminal to control the inverter start-stop/forward and reverse rotation;
2. Connect to the AI (analog input) terminal to control the frequency of the inverter (perhaps made into PID closed-loop control active conditioning frequency)
3. Other DO (switching output) is used to transmit signals such as operation and fault, and AO (analog output) is used to transmit real-time data such as current, speed, torque, etc.
All functions of the inverter need to be set in the parameters, not all functions can be completed at the same time, and the details depend on the detailed requirements.
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Sunland inverters are designed for environmental requirements
1. The ambient temperature ---- is generally "-10-+40°C"; Derating between 40 and 50°C, the additional output current must be reduced by 1% for every 1°C increase. If the ambient temperature is too high and the temperature changes greatly, the insulation of the inverter will be greatly reduced, which will affect the life of the inverter.
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The key points of the use of inverter - Sunland inverter
In order to ensure the safe, efficient and reliable operation of the inverter, the following keys should be grasped when using the inverter:
1) It is necessary to reliably ground the grounding terminal of the inverter, so as to effectively press the radio frequency disturbance and enhance the reliability of the system.
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Inverter maintenance and cleaning inspection method - Senlan inverter
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 ...
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Industrial control circuit board capacitor damage fault characteristics and maintenance - Senlan
Capacitor damage is the highest problem in electronic devices, especially electrolytic capacitors.
Capacitor damage is manifested in: 1. Capacity becomes smaller, 2. Capacity is completely lost, 3. Leakage, 4. Short circuit.
Electricity...
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Misunderstandings and countermeasures of industrial control inverter - Senlan
Today, with the rapid development of science and technology, with the continuous improvement of industrial automation, inverters have also been widely used. Choosing a suitable inverter is very important to ensure the normal and efficient work of the inverter, but in practice, it is necessary to pay attention to some ...
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The main circuit of the inverter application - Sunland inverter
Between the power supply and the inverter, there is a circuit breaker QF and a communication touch device KM, when the inverter does not have to 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. At the same time, the circuit breaker has maintenance functions such as overcurrent and undervoltage. The main circuit of the inverter can ...
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Hope for an application example of Sunland inverter
Industrial process control: It is expected that Sunland inverters are widely used in industrial process production control, such as conveyors, tugboats, air compressors, pumps, and fans and other equipment in various control systems.
Mechanical control: It is expected that Sunland inverters are widely used in mechanical control, such as ...
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The difference between Sunland inverter and soft starter
What is a frequency converter?
The inverter is a converter that converts the communication electricity with fixed voltage and frequency into the communication electricity with variable voltage and frequency, which is called the inverter. It is mainly used in the local demand for speed regulation, and its output not only changes the voltage but also changes the frequency together; The soft engine is really ...
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Inverter with no-load operation and debugging - Hope Sunland
The following four steps are very important for the commissioning of the inverter with the machine (i.e., connected to the motor) and no-load (i.e., the motor without load).
(1) Set the power of the motor, the number of pole pairs, and check the operating current of the inverter.
( ...
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Sunland inverter wiring standard
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 ...
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Fault signal processing method of frequency converter
(1) Check whether the motor is hot.
If the temperature rise of the motor is not high, you should first check whether the size of the load, the acceleration and deceleration time, and the running cycle time are reasonable, and correct the V/F characteristics, and check whether the electronic thermal protection function of the inverter is preset reasonably, such as the inverter.
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Inverter interference solution - Sunland inverter
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.
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What is the fault of the hope Sunland inverter Er0UE?
ER. The meaning of the OUE fault code is: overvoltage during standby. The possible reasons are: 1. DC bus voltage detection circuit failure; 2. The input voltage is abnormal or the power is lost during operation. It can detect whether the power supply voltage used by the inverter is normal, and in addition, it is necessary to check whether the power supply line of the inverter is ...
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Inverter water inlet maintenance method - Sunland inverter
The first step is not to turn on electricity! First open the inverter panel, wipe the inverter dry, and then use a hair dryer to dry the display, PC board, push board, power components, fans, etc., with 95% alcohol, scrub the components with 95% alcohol, and dry the hair dryer with cold air.
Step 2: After an hour, use alcohol ...
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A contactor is used between the inverter and the motor - Senlan inverter
Whether a contactor is used between the inverter (VFD) and the motor depends on the specific situation. When the contactor is on and off when the motor is running, the operating overvoltage is easy to cause VFD damage. Therefore, whether to use the contactor, it must be based on the actual situation to make the correct ...
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The reason why the frequency of the inverter cannot be adjusted - Senlan inverter
If there is no damage to the hardware, the maximum torque output of the inverter is generally less than the load to increase the torque.
The acceleration time is too short
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Learn the way of inverter - Senlan inverter
The inverter is an essential accessory in industrial use, and its main function is to regulate the speed of the motor. It is widely used in various equipment such as production F-line and machine tools. Many engineering people have touches.
The functions of the inverter are many, the parameters are complex, and it is difficult to play without professionals. ...
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Inverter overcurrent treatment method - Senlan inverter
Overcurrent or overload of the inverter is a common problem of the inverter, and overcurrent refers to the value of the current flowing through the inverter beyond its additional range.
1. If the power supply of the inverter is out of phase, the circuit at the output end is disconnected or the motor winding ...
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The main step of inverter debugging - Sunland inverter
Investigation of the function of the inverter system
Before debugging the frequency converter, it is necessary to carefully read the operation instructions and related information of the inverter to be debugged to understand the application environment and precautions. Especially before the inverter is energized, it is necessary to carefully observe and see if the inverter has obvious problems.
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Senlan has won a number of awards in the inverter industry
On December 10, 2014, the inverter branch of China's electrical appliance industry association and the national inverter speed regulating equipment standardization skills committee professional annual meeting was held in Shanghai, 120 representatives from more than 80 professional enterprises attended the meeting, and expected Senlan to also serve as the vice chairman of the inverter branch ...
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