Overheating failure light on start-up analysis - Reynolds

The lightning protection measures of the inverter equipment are another important peripheral measure to ensure the safe operation of the inverter, especially in the area where lightning is active or in the lively season, this problem is particularly important. Today's inverter products are generally equipped with mines.

Reynolds inverter brochure (partial) 　　Before installing When unpacking, it is found that the machine has water or left water traces, indicating that the inverter has been flooded, so please do not install and use it. When unpacking, it is found that the machine is damaged and deformed or the parts are missing, please do not install and use it, otherwise there will be fault expansion and personnel ...

RNVH-A series high-voltage inverter adopts multi-unit series multi-level technology, which is attributed to high-high voltage source inverter, which can directly input 6KV/10KV and direct 6KV/10KV output. Taking the 6KV series as an example, each phase is connected in series by 5 power units, and each power unit is isolated by the input transformer.

1. What are the factory recovery parameters of Reynolds inverter? N600 = 100 (often press the WR button for 3-5 seconds), it is necessary to be in the shutdown state to be effective. 2. In the parameters of the N308 motor of the inverter, is the [motor leakage inductance reactance] specified sub-leakage inductance or rotor leakage inductance react? Decide...

The first way to use the inverter is to change the output frequency to achieve the controllability of the motor speed, so do you know what steps to complete the output frequency controllability? One of the first and foremost key points is how to complete the change of the frequency signal supplied by the inverter equipment.

1 Main circuit wiring (1) Reynolds inverter three-phase AC input terminal (R, S, T) The power input terminal is connected to the three-phase AC power supply through the circuit breaker of the circuit breaker for line protection, regardless of the connection phase sequence. It should be noted here that the three-phase AC power supply is not ...

With the rapid development of China's national economy, the supply and demand situation of oil and gas resources is becoming increasingly severe, and the import of oil and gas is increasing year by year, so it is urgent to expand the field of domestic oil and gas exploration and development. Strengthening the exploration and development of shale gas resources can make up for the lack of conventional oil and gas resources and promote the sustainability of the oil and gas industry.

1. Plan a special inverter room: When the power of the inverter used is large or the number is large, a special inverter room can be planned. The doors, windows and cable holes in the room should be sealed to prevent dust from entering; It is necessary to plan air filtration equipment and circulation channels to adhere to the normal circulation of indoor air ...

Low-voltage air circuit breaker, also known as active air switch or air switch, belongs to the switch electrical appliance, is used when the circuit is overloaded, short circuit and undervoltage can actively break the circuit of the electrical appliances, can also be used as infrequent start of the motor or opening and closing circuit, low-voltage air circuit breaker has an all-round circuit breaker ...

The inverter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to communication), braking unit, drive unit, detection unit and microprocessor unit. The inverter adjusts the voltage and frequency of the output power supply by the internal IGBT break, and ...

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

The top failure modes of mechanical parts: Failure: The mechanical part cannot complete its normal function within the planning and booking period and under the regular conditions. Ways in which mechanical parts fail: overall cracking, plastic deformation, corrosion, abrasion, gluing, and touch exhaustion General ...

Shanghai Reynolds Technology Co., Ltd. is an enterprise specializing in the design and production of high and low voltage soft starters, high and low voltage variable frequency speed regulation, intelligent electrical, new energy electrical and high and low voltage power transmission and transformation equipment, which are widely used in electric power, metallurgy, petroleum and petrochemical, military, mining, chemical industry, ...

(1) The multi-pronged PWM control method is selected, and the output voltage waveform is close to the sine wave. (2) The rectifier circuit is multiplied, the number of pulses is as high as 36, the power factor is high, and the input harmonic is small. (3) Modular design, compact structure ...

In order to avoid the interference of the control signal line between the PLC and the inverter by the space electromagnetic field, the shielding wire can be connected to the outer layer of these control signal lines to improve the anti-interference ability of the system. This kind of wiring must be noted, and only one point can be selected for the grounding point of the shield. Whether it's on the PLC side, or ...

a. Output frequency scale. The output frequency scale that can be controlled by the general inverter, the lowest starting frequency is generally 0.1Hz, and the highest frequency is different according to the functional indicators of the inverter, generally 400Hz, and some models are 650Hz. No matter how high the output frequency is, it depends on the scale of the high-frequency inverter. ...

Low pressure issues The VFD reports a low voltage glitch when the drive's DC link voltage drops below 62% of the nominal level at the high setting (480 Vac) and 50% of the nominal value at the low setting (400 Vac). The +10% and -15% voltage tolerances in most manuals are the ones that claim to be ...

1. Use a vacuum cleaner with a plastic nozzle to thoroughly clean the inside and outside of the inverter cabinet to ensure that there is no excessive dust around the equipment. 2. Check the ventilation and lighting of the frequency conversion room, and the ventilation equipment can operate normally. 3. Check the inverter ...

In order for a VFD to operate reliably for a long time, it is necessary to repair the electronic components in the VFD on a regular basis and replace the primary components of the VFD according to the service life. 1. Cooling fan The VFD power module is the most heat-generating device, and its ...

In order to measure stable harmonics, it is necessary to meet the following two conditions: At the top of the list, the signal is a stable periodic signal. Second, it is necessary to perform harmonic analysis according to the integer multiple of the period of the stable periodic signal. ...