Reynolds permanent magnet synchronous motor solutions

Inverters are widely used in all walks of life, in a variety of applications, inverters will inevitably encounter rainy and humid climate, resulting in internal wetness, or accidentally into the water, in fact, as long as it is found in time, it can still be rescued. If it is in the unpowered state ...

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 ...

1. Classified according to the input voltage level According to the input voltage level, the inverter can be divided into low-voltage inverter and high-voltage inverter, and the low-voltage inverter is common in China with single-phase 220 V inverter, three-phase 220 V inverter, and i-phase 380 V inverter. High-voltage inverters are commonly used in 6 kV, 10 kV transformers.

Recently, in the "2012 National Torch Program Project" issued by the Ministry of Science and Technology of the People's Republic of China, the "RNB6000 Frequency Conversion Governor" independently developed by Reynolds was included in the "2012 National Torch Program Project" with its domestic leading skills and efficient energy-saving conversion power.

1. The acceleration moment is too short. Theoretically, the longer the acceleration time, the stronger the load lifting capacity. If the acceleration time is set too short, some VFDs will show an overcurrent or overload, overtemperature alarm, while others will not, and will only be stuck in a certain frequency band. 2.The V/F ratio is too large Some of this ...

Classification of Reynolds frequency converters: There are many classification methods for Reynolds inverters, which can be divided into voltage-type inverters and current-type inverters according to the classification of the main circuit operation method; According to the classification of switching methods, it can be divided into PAM operation.

The output voltage of low-voltage general frequency conversion is 380-650V, the output power is 0.75-400kW, and the operating frequency is 0-400Hz. Its control methods have gone through the following four generations. 1U/f=C Sinusoidal Pulse Width Modulation (SPWM) Manipulation MethodIts Characteristics ...

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 ...

When it is required to wiring outside the frequency conversion cabinet, it is generally necessary to use the conduit for wiring, which requires suitable mechanical pressure and unsuitable mechanical damage, moisture-proof and corrosion-resistant. Conduits include the following two wiring methods: 1. Kim ...

Reynolds soft starters include soft starters for high, medium and low voltage motors, including JJR1000 series, JJR2000 series, JJR5000 series, and RNB3000 series frequency converters. Reducing the starting power supply avoids voltage drops and voltage dips in the power supply. Smooth start-up avoids product damage. ...

1. Connect X (switching input) drive terminal to control the inverter start-stop/positive rotation; 2. Connect to the AI (analog input) terminal to control the frequency of the inverter (perhaps made into PID closed-loop control automatic adjustment frequency) ​ 3. ...

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 ...

One. Safety Precautions 1. First of all, it is necessary to have certain electrical professional knowledge, and understand the job site, understand the equipment status, and have certain electrical operation technology. 2. Determine the voltage level of the equipment (such as low-voltage AC380V) and whether it is low-voltage ...

The basic principle of vector control is to control the excitation current and torque current of the asynchronous motor according to the principle of magnetic field orientation through the measurement and control of the stator current vector of the asynchronous motor, and then achieve the purpose of controlling the torque of the asynchronous motor. Specifically, the stator of the asynchronous motor ...

Each type of servo motor has additional torque, maximum torque and servo motor inertia and other parameters in the standard items, each parameter and load torque and load inertia must have a relevant connection, the output torque of the servo motor should meet the requirements of the movement conditions of the load organization, such as the speed of the acceleration ...

Compared with the motor driven by the inverter, the power factor and efficiency of the motor will deteriorate and the temperature rise will increase because the output waveform of the inverter contains the influence of higher harmonics. On the other hand, when the frequency conversion is driven, the same torque should be obtained as when the power frequency power supply is driven, ...

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 decrease from the high frequency to 0. Generally, the frequency converter uses the frequency setting signal to rise and fall to confirm the acceleration and deceleration time. The rise of the frequency setting must be limited when the motor accelerates.

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 ...

The selection of the acceleration form and deceleration form of the inverter is also called the selection of acceleration and deceleration curves. Generally, there are several forms of inverter, such as linear, S-shaped, semi-S-shaped, etc., and the characteristics and uses of each form are as follows. 1. Linear form The form makes the inverter ...

The fundamental principle of vector control is to control the excitation current and torque current of the asynchronous motor according to the principle of magnetic field orientation through the measurement and control of the stator current vector of the asynchronous motor, and then to achieve the purpose of controlling the torque of the asynchronous motor. Specifically, it is to ...