Urban water supply: Water delivery pump, water intake pump, water supply pump, sewage treatment industry, self-fractionating pump etc
Minerals & Mining: Mud pump, ventilation fan, belt conveyor, slurry pump etc Others: Loads such as fan, pump and compressor in pharmaceutical, paper making and wind tunnel test.
Especially for: Fan and Pump
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:I power adapter output current 3.25A for a 4.5A, can you use it
No problem that nominal value is that the adapter can provide the maximum operating current to your computer current is not so big
Q:Inverter principle eff23
According to the use of classification, can be divided into general-purpose inverter, high-performance dedicated inverter, high-frequency inverter, single-phase inverter and three-phase inverter. VVVF: change the voltage, change the frequency CVCF: constant voltage, constant frequency. The AC power supply used by each country, whether it is for home use or for the factory, has a voltage and frequency of 400V / 50Hz or 200V / 60Hz (50Hz), and so on. In general, a device in which an alternating current having a constant voltage and frequency is converted into a voltage or a variable frequency alternating current is referred to as a "inverter". In order to produce a variable voltage and frequency, the device first converts the alternating current of the power supply into direct current (DC). For the motor control of the inverter, both can change the voltage, but also can change the frequency.
Inverter control mode
Q:ASUS power adapter Acer can use it
3. The size of the joint is appropriate. (If the connector is too loose, will be bad, excessive fever.)
If it is for DELL and HP / Compaq and other notebook power adapter, will involve a decoding problem. Please pay attention when the pro to buy. Acer and Asus are not yet available.
It is said that the market is also very popular universal adapter, a friend bought a LVSUN brand universal adapter LS-PAB90-BC10, with eight joints. Adapter has a liquid crystal display, you can also automatically switch the voltage, very smart, with more than a year, has also been used.
Q:How to learn the inverter debugging and design parameters
Personally think it is relatively simple, and now the inverter has been more intelligent, and some simple applications, and even do not need to set the parameters.
Q:Inverter alarm a043, how is it
When a signal failure occurs, use the DTI board, if necessary, change P215. With P806
(Follow the parameter description) during operation can be converted to no encoder operation
A043 is: n-actjump exceeds the allowable change speed of the speed encoder signal (P215)
In addition, for the synchronous motor (P095 = 12):
The motor speed is 2% higher than the inverter release time point.
The inverter in the ready state can not exit. Check processing:
Check if the cable is disconnected
Check the tachometer to shield the ground
Not only on the motor side but also on the inverter side
The encoder cable does not allow disconnection
Use only recommended encoders
The encoder cable is not allowed to be laid with the power cable
Q:Three-phase asynchronous AC motor speed control method
First, variable pole alignment speed method
This method is to change the way to change the stator winding red way to change the cage motor stator pole to achieve the purpose of speed, the characteristics are as follows:
With a hard mechanical properties, good stability;
No slip loss, high efficiency;
Wiring is simple, easy to control, low prices;
A level of speed, large difference, can not get smooth speed;
Can be used with the regulator speed, electromagnetic slip clutch used to obtain a more efficient smooth speed control characteristics.
This method is suitable for production machinery that does not need stepless speed regulation, such as metal cutting machine tools, lifts, lifting equipment, fans, pumps and so on.
Q:22kw.2 pole fan can use Fuji inverter?
according to the rated name of the fan brand and the inverter rated current control, select the current value match, or slightly larger The
Q:Can the inverter stop intermittently during operation? If so, how to connect and set up
Look at your inverter manual, because the inverter is not a simple wiring can run, first of all have to know that a few are external terminals (inverter input terminals),
Q:Is the laptop power adapter high temperature normal? Is there anything else?
In the power to hit the radiator is very troublesome, it is recommended to place in a ventilated place, do not put on the paint above the table, it is best on the glass above, so much faster heat. Conditions permit, then in the air-conditioned room Internet access. Do the above two, you do not need to care whether it is hot
Q:Do not the laptop directly connected to the power adapter?
3, the notebook internal circuit using low-voltage direct current work, if the direct use of 220V AC and its connection will burn the circuit in the low-voltage devices, which is absolutely prohibited, but also basic common sense. At the same time, its external power jack is also dedicated, and the AC outlet is different;