Precautions for inverter wiring - hope Senlan

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 ...

(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.

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. ...

How to distinguish where the inverter is wrong? Step 1: Static data checking 1. Check the inverter circuit The red watch rod is received to the P end, and the black watch rod is separated from U, V, and W, and there should be a resistance value of tens of ohms, and the resistance value base of each phase, the same, the opposite should be infinite.

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 ...

Air pollution in port cities mainly comes from cargo loading and unloading operations and emissions from ships calling at ports; Shore power connection refers to the closure of the auxiliary engine during the port of the vessel, and the shore power is supplied by the port. At 9:08 on December 25, 2018, the world's first ...

To be able to connect, you must use larger special specifications, the inverter outputs higher harmonics, and the leakage current is larger than that of conventional leakage switches, which simply trip, and requires the use of large-scale or special types of leakage switches. Many VFD manuals have instructions on the installation and selection of leakage switches.

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 ...

Natural heat dissipation methods are generally used for heat dissipation of small-capacity inverters, because their operating environment should be well ventilated and free of dust and floating objects. The drag targets of such inverters are mostly household air conditioners, CNC machine tools, etc., and the power is small. Still...

We need to ensure that the capacity of the inverter is matched. First of all, according to the nature of the load, the correct type of inverter is selected. The general principle is what nature of the load characteristics with what characteristics of the inverter. (1) Constant torque production equipment - in the speed regulation range ...

The general voltage in industry is 0... 5(10)V or current 0(4)... 20mA is used as an analog signal transmission method, and it is also a method often used by program control machines. So what is the difference between the transmission method of voltage and current, and when to choose what method, the following will be briefly introduced.

1. Step-by-step decreasing method The so-called gradual reduction method is to gradually reduce the scale of the problem through the analysis of the problem phenomenon and the identification of measurement parameters, and finally implement it to the specific circuit or component that causes the problem. In essence, it is a certainty, a negation, a negation, a negation, a final ...

1. Repair the damage of the inverter rectifier block The damage of the inverter rectifier bridge is also one of the common faults of the inverter, the inverter rectifier block in the early production is mainly diode rectifier, and now some rectifier blocks choose the rectifier mode of thyristor (voltage regulation and frequency modulation inverter). Middle...

Investigation of the function of the inverter system Before debugging the inverter, it is necessary to carefully read the instruction manual and related information of the inverter to be debugged to understand the use environment and precautions. Especially before the inverter is energized, it is necessary to carefully investigate and check whether the inverter has obvious problems.

If the drive has a built-in braking unit and additional braking resistors, it is important to pay attention to the correct wiring of the braking resistors. The braking resistor should be connected between the P terminal and the DB terminal, but not between the P terminal and the N terminal, otherwise the three-phase rectifier bridge will operate at full load when it is not running, resulting in the equipment can not be ...

(1) Set the power of the motor, the number of pole pairs, and check the operating current of the inverter. (2) Set the maximum output frequency and base frequency of the inverter and set the torque characteristics of the motor. Pressure/Frequency (V/F) Operators ...

1. Do a good job of moisture-proof operations, clean up water and oil stains on site, insist on the boring environment of electrical equipment, and pay attention to preventing the inverter from being exposed. 2. Do a good job of maintenance and maintenance, take advantage of the shutdown for maintenance, clean the frequency conversion dust, and clean the frequency conversion air duct; Tighten the frequency conversion cable joint to prevent loosening, ...

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) Oil circuit inspection: Open the safety valve to check whether there is any leakage in the oil circuit. 2) Line check: whether the R, S, T, PE on the input side of the driver, U, V, W, PE lines on the output side and the control line are corresponding. 3) Check whether the power supply voltage of the incoming terminal of the servo drive is normal ...

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.