High-voltage frequency converter based on H bridge series units. High voltage inputs directly. In order to save energy, phase-shifting transformer inputs the low voltage on the second side to each power unit of H bridge and the output series of each phase and all power units connect so it has formed high voltage to drive the motor that. It’s a high-tech, green energy-saving product integrating advanced automatic control technology, high-power electric and electronic technology, fast and reliable fiber communication technology, high voltage technology and digital signal processing technology.
We hereby warrant that the new instruments manufactured by the Company are strictly tested for quality, and that we assume the responsibility for free repair if any engineering defect or part fault is found within 1 year of delivery of the instrument.Within one year warranty, please send your faulty unit to the company's service center or designated dealer for proper repair.We, however, provide no free warranty service for any damage caused due to user's modification of circuit, function or repair of the instrument and parts or damaged package. This warranty does not apply to such accessories as auxiliary devices to this instrument which are not produced by the Company.
If this unit is faulty due to misuse, human negligence or force damage factors such as earthquake, flood, riot or fire hazard,the company provides no free warranty service.
Rated output current (A)
Motor power (kW)
Rted input voltage
Input power factor
0.96 with rated load
120% 1 min, 150% immediately
expanded according to requirement
<90% without condensation
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Q:380V motor addition to the inverter, but also how to change its speed?
Use the star connection to reduce the speed by changing the torque
Q:What is the frequency converter used to do, why some motor with the inverter?
Frequency converter is widely used in the speed regulation of AC motor.Varameter speed control technology is an important development direction of modern power transmission technology, with the development of power electronics technology, AC frequency conversion technology from theory to practice gradually mature. Inverter not only smooth speed, large range, high efficiency, start current is small, smooth operation, and energy saving effect is obvious.
Q:Who knows how the frequency converter works
4 inverter circuit
Inverter circuit In contrast to the rectifier circuit, the inverter circuit converts the DC voltage into the AC voltage of the desired frequency, and turns on and off the power switch device of the upper bridge and the lower bridge at the determined time. Which can be in the output U, V, W three phase phase difference between the 120 ° electrical angle of the three-phase AC voltage.
Q:Pump frequency converter instantaneous restart and restart the problem
Speed tracking start.
The specific to ask you to drive the inverter that guy.
He earned your money there is a need for technical support
Q:How to view the parameters of the notebook power adapter on your computer
Notebook power adapter using the correct method] 1. Try to avoid the use of outdoor or harsh environments to prevent the adapter is exposed or damp. 2. When you are not using the adapter, please unplug the power plug. Because, for a long time the power will let the adapter has been in working condition, will affect the end of life. 3. Although the adapter is a broadband operating voltage, marked from 100V-240V can be, but if the voltage is extremely unstable in the case of use, the same will cause damage to the power adapter.
Q:Laptop power adapter (no power supply, but indicator light)
Notebook power adapter can not charge, but the indicator light does not light the common reasons are:
1, the power adapter is broken or the connector is broken.
2, the power adapter output problem, no output or output is too low, can not give the computer charge.
3, the notebook charging interface is broken, not into the electricity charge.
4, the notebook power management circuit out of the fault, resulting in can not charge.
Q:Jd1a-40 motor speed controller and how to connect the motor
Speed control motor wiring method:
3.4.5 is the terminal of the tachogenerator (U / V / W) from the right-to-left order of 1.2 for the excitation coil (F1 / F2) terminal, from the extended end of the speed motor (electromagnetic clutch)
Master 7 plugs on the air plugs (governor): terminal 1.2 for the 220v input, 3.4 on the speed of the motor on the excitation coil, 5.6.7 speed motor on the tachogenerator.
Motor speed control method:
The speed regulating motor is to change the speed of the motor by using the series, voltage, current, frequency and so on of the motor to make the thyristor voltage regulation method the best.
Q:Who knows how the inverter is calculated?
Quadrupole motor synchronous speed is: 1500 r / min, but the actual motor speed will be more than 14 turn.
Q:There is no inverter comes with simple PLC programming function
Inverters are generally digital input, and analog input, a digital output, etc., can also be controlled by means of communication. Digital input can be used as a positive and negative and reset the alarm, the analog input can be given as a speed, and how to use the inverter to see the specific model.
Take the Siemens inverter, MicroMaster420,567 terminal 3 digital input, 8 for the 24V, 9 for the 0V, you can usually open the point on the 8th 24V back to 567, as a digital input, you can also directly into the switching power supply Of the 24V, but the switch power supply 0V and 9 terminals connected to the potential, or the inverter may not be able to identify the outside world 24V. (DP communication, USS communication, etc.), with the terminal input on the P0700 = 1, the user can set the command source, the panel can be input, 2, P0701 to P0703 corresponding to the three digital functions: parameters set to 1 forward, 2 for the reverse ... ... a lot of features and control methods, see the corresponding product manual like
Q:Laptop power adapter bad what is the phenomenon?
Either the power is bad or the machine on the power supply module is bad to repair service