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Control method of Reynolds inverter
The fulfillment device commonly used in the industrial field of Reynolds inverter has good speed regulation performance and simple and convenient operation method. Therefore, it is widely used in the automation system.
Typical wiring method for the main circuit of a Reynolds frequency converter
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The inverter prepares the braking resistance factor – Reynolds
The preparation of the braking resistor of the inverter is mainly to consume part of the energy on the DC bus capacitor through the braking resistor to avoid the capacitor voltage being too high. Theoretically, if the capacitor stores a large amount of energy, it can be used to release it to drive the motor and avoid energy waste. However, the capacitance of the capacitor is ...
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Reynolds soft starter problem solving
1. The soft starter does not start and the fault-free code appears, perhaps because the control power supply is not connected, the solution is to check the power supply of the control power supply to see if the circuit connection is correct.
2. The motor starts when the motor announces a hum/no start signal, perhaps because of the thyristor/module ...
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Safety precautions for low-voltage soft lift - Reynolds
Precautions for low-voltage soft starters
For cooling purposes, the soft starter must be installed in a straight direction.
In order to ensure excellent heat dissipation, there should be room for the soft starter device.
Main circuit selection ...
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Structural characteristics of Reynolds RHY series inverter governor
1. Advanced technology: (PC or PLC) is used to make the equipment complete the intelligent constant pressure variable supply water supply according to the requirements of water supply and fire protection;
2. High efficiency and energy saving: the system can set the pressure according to the demand, and the system can actively adjust according to the set pressure.
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Reynolds soft starter fault code and fault handling
Reynolds soft starter fault code
Instantaneous stop -F 01 Instantaneous stop terminal 7 to terminal 10 open
TOO LONG STARTING TIME -F 02 STARTING TIME IS TOO LOW AND THE STARTING TIME IS TOO LONG (GREATER THAN 60S)
Overheating -F 03 Start too often, reduce the number of starts
Input out of phase -F 04 ...
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Applications of Reynolds frequency converters
A frequency converter is a power electronic device that can change the frequency of an AC power source to control the speed and output power of a motor. Inverters are widely used in industry, aviation, metallurgy, petroleum, chemical industry, electric power and other fields.
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Reynolds inverter control panel and code function description
1. Clarification of the function of the control panel
1. FUN button; Press the FUN button to enter the settings menu F00;
2. Press and hold the up or down button to scroll to the code you need to set;
3. At this moment, press the FUN button to confirm, and adjust the entry parameters to the required value;
4. After the adjustment is completed, ...
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Reynolds soft starter manual
Reynolds JJR5000 series all-digital intelligent AC motor soft starter adopts power electronics technology, microprocessor technology and modern control theory technology, and is a new type of starting equipment at the international advanced level. This product can effectively limit the starting current of asynchronous motor start-up, and is widely used in ...
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The soft starter output is out of phase fault
Soft Starter Repair Problem: F 04 (Input Phase Loss):
There are several factors that cause this problem, some of which are listed below:
(1) Check whether the wiring between the incoming power supply and the motor is loose;
(2) Whether the output is connected to the load, and whether the load is matched with the motor;
(3) ...
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The cause of damage to the inverter brake unit - Reynolds
The inverter motor is equipped with a mechanical brake, is the inverter motor in the power generation condition when parking? Is the brake unit of the inverter working at the moment? What are the causes of brake unit damage?
Answer: 1. The inverter motor is equipped with a mechanical brake, and when parking...
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Features of Reynolds high-voltage frequency converters
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.
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The inverter has no short-circuit protection for the reason – Reynolds
Short-circuit maintenance is a function of equipment connected between the power supply and the load, which can effectively disconnect the short-circuit point from the power supply when the load side is short-circuited. If an equipment has a short-circuit maintenance function, it must have a certain short-circuit breaking ability; And a device with the ability to break in a short circuit ...
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Parameter setting of acceleration and deceleration time of Reynolds universal inverter
The acceleration time of the Reynolds inverter is the time required for the output frequency to rise from 0 to the high frequency, and the deceleration time is the time required to drop from the high frequency to 0. Usually, the inverter uses the frequency setting signal to rise and fall to confirm the acceleration and deceleration time. When the motor accelerates, the rise of the frequency setting must be constrained ...
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Precautions for low-temperature operation of VFD
1. VFD should be operated in an environment above minus 10°C as much as possible, and it is best to operate indoors.
2. When the VFD is started and stopped, try to start and stop with the VFD itself, do not close the power supply, and keep your VFD in a power-on state.
3. Give VFD l ...
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Introduction to the appearance of Reynolds inverter
Bypass cabinet: The cabinet is equipped with high-voltage inlet and outlet isolation switches QS1 and QS2, as shown in Figure 2. Among them, QS1 is a single-pole single-throw variable frequency incoming knife switch, and QS2 is a single-pole double-throw power frequency and variable frequency outgoing knife switch. The bypass cabinet is a high-voltage environment, please observe the live display and electromagnetic lock status to ensure that the ...
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Features of the unit tandem inverter - Reynolds
(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 ...
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Elimination of inverter harmonics method – Reynolds
a. Add the internal impedance of the power supply of the inverterIn general, the internal impedance of the power supply equipment can play a role in buffering the reactive power of the DC filter capacitor of the inverter. This internal impedance is the short-circuit impedance of the transformer. When the power supply capacity is smaller than the inverter capacity, the internal impedance value is relatively large.
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Reynolds permanent magnet synchronous motor solutions
The permanent magnet synchronous motor has high-efficiency motor drive performance, which can complete high-speed, high-precision, high-stability, fast-responding, high-efficiency and energy-saving motion control. Reynolds drives provide a vector control technology solution for permanent magnet synchronous motors.
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Frequency characteristics of Reynolds frequency converters
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.
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