frequency inveverter 3000w
1) frequency inverter,single phase type
2) pure sine wave inverter
3) frequency inverter 1kw-8kw
Power Capacity (W)
DC Voltage (V)
Input voltage (V)
Output voltage (V)
Charge Current (Ampere)
Input/output over high or low protecting;
low battery protecting; surge and pike-currents protecting; overload protecting 100%-120% 30sec; >120% 100ms; >150%, 50ms output short circuit<150ms
-15 - +50°C
- Q:A water supply project, how to choose electrodes and frequency converters, such as giving a 7-storey water supply
- 1. Select the pressure pump head: 7 * 2.5 (3) = 17.5 (21) meters; this is the number of theory, in fact, should be selected 40 meters, (0.4Mpa).
- Q:What is the working principle of high voltage electrodes and frequency converters?
- The general high and low methods are used in low-power high-voltage motor to do with energy-saving energy.
Low-high-mode high-voltage inverter is controlled by a low-voltage inverter, the voltage directly to the motor with a step-up transformer voltage. Low-high mode is also used in low-power high-voltage motor to do with energy-saving energy.
- 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:The laptop's power adapter can be used on a desktop computer
- that is the adapter is only one output input desktop machine needs a lot of different The interface can not be used completely Well
- Q:Is the motor having a variable frequency motor and a variable voltage motor?
- According to the way to start talking about a variable frequency motor and variable voltage motor
- Q:The relationship between the power supply of the notebook and the battery
- 2, when the laptop turns on the power adapter, and the battery power is low, the charging circuit detects the battery power is lower than the set value, the power adapter will side of the host power supply, while the battery charge. After the charge is restored, it is restored to the power supply state directly from the adapter.
Therefore, the relationship between the power supply of the notebook and the battery is that the battery is charged by the power adapter when the battery level is below the set value.
- Q:Variable frequency pump pressure in the very low flow instability, why?
- From the performance curve, the flow becomes smaller, the combination of pressure and frequency adjustment flow will only stabilize the flow at a small value, the pressure will be reduced, because the work point will move down.
- Q:The notebook power adapter flashes
- 1: Check the socket with a multimeter is normal, the supply voltage is 220V. If the utility voltage is not normal, it is recommended to replace the use of environmental testing.
2: Check with the multimeter whether the output voltage and current of the power adapter match the label. If the gap is very large, and the mains voltage is normal, you can determine the power adapter failure, need to replace the laptop power adapter.
3: If the above check is normal, remove the laptop battery, do not external adapter. Press and hold the notebook power button 5 seconds to repeat 3 times. After releasing the notebook residual charge, insert the power adapter separately, power on the test.
4: If the fault persists, check the notebook's power connector, whether the exception. Such as loose or the appearance of damage and so on.
5: the above checks are normal, basically can be a preliminary judgment is the notebook motherboard failure. Recommended repair service station.
- 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:Fuji inverter motor set the number of poles will not have any effect?
- The number of motor poles corresponds to the speed of the motor, the number of poles is not set when the speed of the control error, in the high speed requirements of the transmission is not allowed.
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