Indicator of Reynolds inverter cabinet wiring

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 ...

JJR1000系列： 　　JJR1011；JJR1017；JJR1022；JJR1030；JJR1037；JJR1045；JJR1055；JJR1075；JJR1090；JJR1115；JJR1132；JJR1160；JJR1200；JJR1250；JJR1320；JJR1400；JJR1500；JJR1600 ...

In the course of inverter repairs, if there is no significant damage to the hardware and the maximum torque of the VFD is usually less than the torque of the load increase. It means that the load capacity of the frequency conversion speed control equipment has decreased significantly. So how do you deal with this? ...

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. ...

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.

Misunderstanding: connect electromagnetic switches and electromagnetic contactors in the output circuit of the inverter In actual use, some occasions require the use of contactors for frequency converter switching: such as when the frequency conversion is faulty, switch to the power frequency operation, or when the one-to-two method is adopted, a motor is faulty, and the variable frequency is used.

1. In order to save power, the inverter is selected Many manufacturers and salesmen praise how high the power-saving rate of the inverter is, and the user also believes that it is true, and the inverter is selected at a high cost simply in order to save electricity, but the results are greatly disappointed. Whether the inverter can save power after using it is determined by the load driven by it.

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 ...

1. Test preparation: 1. It is necessary to remove all power switches before powering on the PLC control cabinet or IO cabinet. 2. It is necessary to completely cut off the connection between the PLC or DCS card and the outside. All front adapters are to be loosened and raised. 3. Check the power terminal wires and connectors.

The inverter is composed of many electronic parts, such as semiconductor components, etc., in the application and protection involves the replacement of a related component, because of the composition or physical characteristics of the inverter, it will deteriorate in a certain period of time, which will reduce the characteristics of the inverter, and even ...

Frequency conversion speed regulation is to change the power supply frequency through the frequency converter, and then adjust the motor speed to improve the operation efficiency of the electric drive system. Depending on the current, VFDs can be divided into AC-DC-AC type and AC-AC type. At present, the most widely used in China is the AC-DC-AC type. ...

1. Pole change logarithmic speed regulation method This speed regulation method is to change the number of stator poles of the cage motor by changing the connection method of the stator winding, so as to reach the intention of speed regulation; The wiring is simple, the control is convenient, and the price is low; It can be used in conjunction with pressure and speed regulation, electromagnetic slip clutch to obtain high efficiency ...

Causes of inverter failure: 1. The grid voltage is too low 2. The rated current of the motor is set incorrectly 3. The motor stall or load abrupt change is too large 4. Large horse-drawn trolley Inverter solutions: 1 ...

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 ...

The inverter has power loss during operation and converts it into heat energy, which increases its own temperature. Roughly speaking, the power loss of every 1kVA inverter capacity is about 40W-50W. Therefore, when installing the inverter, it is necessary to consider the heat dissipation of the inverter, and how to run the inverter.

Equipment selection 1. Inverter selection. When it comes to sizing, the first thing to consider is the operating conditions – whether one or more motors should be started or stopped at any time during the operation of the inverter. If the motor does not need to be started at any time during the operation of the inverter, it may only be stopped or ...

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 ...

1. The wires of the inverter control circuit should be strictly distinguished from the main circuit cable (power line) and placed separately. This effectively prevents the inverter's control circuit from being disturbed by harmonics in the inverter's main circuit. 2. To separate the connection of the inverter from the terminals or contacts of other control circuits, ...

Rectifier circuit: rectify 50HZ communication power into direct current. Frequency conversion circuit: The rectified direct current is inverted into a variable frequency communication current. Control part: control the frequency of communication electricity output by the inverter circuit. Maintenance circuit: maintenance and blockage of overcurrent and phase loss ...

a。 When the third harmonic and disturbance signals are severe, a barrier transformer can be used to eliminate the third harmonic and disturbance signals. b。 The use of barrier transformers can generate new neutrals and avoid the abnormal operation of equipment due to defective neutrals in the grid. ...