How long does the special inverter for water pump generally last

It is not bad and can be used for a long time. Depending on your use environment, there is a long time for it to be bad, and it is generally okay for one or two years. Good environment for more than 10 years is no problem. Of course, if it's a *** product.

It depends on your working environment, and if you want to use the pump inverter for a long time, it is best to choose an IP55 protection level.

Ingress Protection IP

IPXX dustproof and waterproof rating.

Dust resistance rating (indicated by the first x).

0: No protection.

1: Prevents the ingress of large solids (>50mm).

2: Prevents the ingress of medium-sized solids.

3: Prevent the intrusion of small solids.

4: Prevent the entry of solids larger than 1mm.

5: Prevent harmful dust accumulation.

6: Completely prevent dust from entering.

Waterproof rating (indicated by the second x).

0: No protection.

1: Water droplets dripping into the shell have no effect.

2: When the shell is tilted to 15 degrees, the water droplets dripping into the shell have no effect.

3: No effect of water or rain from 60 degree corners to the enclosure.

4: Liquid splashed into the shell from any direction has no harmful effect.

5: Rinsing with water has no effect.

6: Can be used in the environment in the cabin.

7: It can be resistant to water immersion in a short time.

8: Immersion in water for a long time under a certain pressure.

For example, there is a meter marked IP65, which means that the product can completely prevent dust ingress and can be washed with water without any harm.

Sealed type is available.

Because the place where the pump is used is too humid, the general inverter will rust everywhere after a long time, which will affect the service life.

This is very general, it is difficult to say, the environmental impact is very large, and the normal situation is generally ten or twenty years.

The use method and parameter adjustment of the water pump inverter are as follows:

How to use the water pump inverter

1. According to the operation process of "Menu Description", switch the parameter name to the parameter to be modified.

2. At this time, the decimal point of the parameter name does not flash, and the decimal point of the parameter value begins to flash.

3. Press or to adjust the parameter value to the required value.

4. Press confirm to enter, then the decimal point of the parameter value will not flash, and the decimal point of the parameter name will start to flash.

5. If you want to modify other parameters, repeat the above operations.

6. After all parameters are modified, press 3 seconds to exit the parameter setting menu and return to the normal working state.

Parameter adjustment of water pump inverter

1. Parameter 9902 indicates the selection of control parameters, which sets ACSL40 to apply different control parameters. Select different control parameters, and the inverter control terminals have different functions. Parameter 9902 values from 0 to 7.

The standard selection 9902 has a value of 1.

2. Parameter 9905 sets the maximum voltage value of ACSL40 output to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. The voltage output from the ACSL40 to the motor cannot be greater than the supply voltage.

3. Parameter 9906 sets the current output by ACSL40 to the motor, and its value is the rated current value on the nameplate of the motor used.

4. The frequency of parameter 9907 adjusting the output voltage of the inverter is the frequency indicated on the nameplate of the motor, and the frequency value of this frequency should be equal to the frequency value adjusted by parameter 1105 and 2008.

5. Parameter 1003 represents the direction control parameters, select 1 motor forward rotation, select 2 motor reversal, select 3 motor forward rotation or reverse rotation.

6. Parameter 0102 represents the speed of the motor.

7. Parameter 0104 represents the current value of the motor.

8. Parameter 0105 represents the output torque of the motor shaft, which is expressed as a percentage of the rated torque.

1. The performance is different. Frequency conversion: that is, the working frequency can be changed, and the upper limit of civil general change is 50Hz.

Power frequency: The working frequency of the pump does not change, and it is generally 50Hz for civil use. The small pump is a variable frequency pump, and the large pump is a power frequency pump.

2. The water output is different. Frequency conversion: When working under inverter conditions, the water output will change with the change of frequency.

Power frequency: When working under power frequency conditions, the water output will maintain a constant value.

Frequency conversion: that is, the working frequency can be changed, and the upper limit of civil general change is 50Hz. Power Frequency:

The working frequency of the pump does not change, and it is generally 50Hz for civil use. The small pump is a variable frequency pump, and the large pump is a power frequency pump. 2. The water output is different.

Frequency conversion: When working under the old parts of the frequency conversion strip, the water output will change with the change of frequency. Power Frequency:

When operating under power frequency conditions, the water output will remain constant.

Hello, dear. The difference between the power frequency and frequency conversion of the water pump is different: 3. The characteristics are different.

Power frequency: the mains is easy to use, there are more manufacturers, ** cheaper, longer life than digging book. The disadvantages are that the size, noise is large, the weight is high, it is inconvenient to carry, the protection level is high, and there is the possibility of electric shock if it is used improperly.

Frequency conversion: The pump configuration is flexible, and the hardware of the pump comprehensive parameter measurement and control system adopts a modular structure, and is displayed by virtual instruments, which is convenient for interface expansion, and users can choose the appropriate module to match their own system according to their own needs.

Dear, the following is the information for you to expand Oh, a water pump is a machine that transports liquids or pressurizes liquids. It transmits the mechanical energy or other external energy of the prime mover to the liquid, so that the liquid energy increases, and is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspension emulsion and liquid metal. It can also convey liquid trouser key bodies, gas mixtures, and liquids containing suspended solids.

The technical parameters of the pump performance include flow and travel capacity, suction lift, head, shaft power, water power, efficiency, etc.; According to different working principles, it can be divided into volumetric water pumps, vane pumps and other types. Positive displacement pumps use changes in the volume of their studios to transfer energy; Vane pumps use the interaction between rotary blades and water to transfer energy, and there are types of centrifugal pumps, axial flow pumps and mixed-flow ballast pumps.

Summary. The difference between a variable frequency water pump and a water pump that is not an inverter water pump.

Hello dear, one, definition.

1. The inverter water pump is based on the ordinary water pump. The so-called ordinary water pump refers to the pump without any automatic control device, only the pump head, the motor and the base are composed, and the power supply is turned on (the domestic default power supply: single-phase 220 50Hz or three-phase 380V 50Hz) will run, and the power will be stopped.

Ordinary water pumps do not refer to a certain type of pump alone, but can be centrifugal pumps, pipeline pumps, vortex pumps, multistage pumps and other commonly used pumps.

2. The so-called inverter water pump is a variable frequency water supply device with automatic function and automatic constant pressure on the basis of ordinary water pump, supplemented by check valves, air pressure tanks, frequency converters, constant pressure water supply controllers, sensors and other pipe valves or electrical components. The incoming power supply of the inverter pump can be single-phase 220V 50Hz or three-phase 380V 50Hz, but the motor of the inverter pump is generally three-phase. The motor used in the incoming line is a three-phase 220V motor for the incoming line of the inverter 220V inverter pump, and the incoming line is a three-phase 380V inverter pump motor.

2. Differences. Judging from the above definition, the difference between inverter water pump and ordinary water pump is obvious. Main Differences:

The difference between a variable frequency water pump and a water pump that is not an inverter water pump.

The difference between a variable frequency water pump and a water pump that is not a frequency conversion Hello dear, 1. Definition 1, the variable frequency water pump is based on an ordinary water pump. The so-called ordinary water pump refers to the pump without any automatic control device, only the pump head, the motor and the base are composed, and the power supply is turned on (the domestic default power supply: single-phase 220 50Hz or three-phase 380V 50Hz) will run, and the power will be stopped.

Ordinary water pumps do not refer to a certain type of pump alone, but can be centrifugal pumps, pipeline pumps, vortex pumps, multistage pumps and other commonly used pumps. 2. The so-called inverter water pump is a variable frequency water supply device with automatic function and automatic constant pressure on the basis of ordinary water pump, supplemented by check valves, air pressure tanks, frequency converters, constant pressure water supply controllers, sensors and other pipe valves or electrical components. The incoming power supply of the inverter pump can be single-phase 220V 50Hz or three-phase 380V 50Hz, but the motor of the inverter pump is generally three-phase.

The motor used in the incoming line is a three-phase 220V motor for the incoming line of the inverter 220V inverter pump, and the incoming line is a three-phase 380V inverter pump motor. Second, the difference from the above definition, the difference between the inverter pump and the ordinary pump is obvious. Main Differences:

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Summary. The frequency converter adjusts the frequency range of 25 to 50Hz. The general frequency conversion output voltage is 380 650V, the output power is, the working frequency is 0 400Hz, and its main circuit adopts AC-DC-AC circuit.

The common frequency giving methods of inverters mainly include: operator keyboard given, contact signal given, analog signal given, pulse signal given and communication mode given. These frequency given methods have their own advantages and disadvantages, and must be selected and set according to the actual needs, and different frequency given methods can also be selected according to the functional needs for superposition and switching.

The frequency converter adjusts the frequency range of 25 to 50Hz. The general frequency conversion output voltage is 380 650V, the output power is, the working frequency is 0 400Hz, and its main circuit adopts AC-DC-AC circuit. The common frequency giving methods of frequency converters are mainly as follows:

The operator keyboard is given, the contact signal is given, the analog signal is given, the pulse signal is given and the communication mode is given, etc. These frequency macro splitting given methods have their own advantages and disadvantages, and must be selected and set according to the actual needs, and at the same time, different frequency given methods can also be selected according to the functional needs for superposition and switching.

I hope mine is helpful to you and I wish you a happy life!

The speed of the pump is proportional to the speed of the inverter, which is the use of this principle to change the negative impact caused by the long-term operation of the pump. This kind of inverter can not only reduce electricity consumption, but also is more convenient to use, very small in size, but also can reduce land use, and the work efficiency is very high.

The special inverter for the pump can make the water supply system run smoothly and reliably, realize the unattended automatic circulating pump and frequency conversion operation in the real sense, ensure the optimization of the operation efficiency of each pump and the stable operation of the equipment, and eliminate the impact of large current at starting.

According to the real-time pressure demand, the pump operation frequency is automatically adjusted to avoid the power frequency operation of the pump, so as to prolong the service life of the pump and eliminate the water hammer effect during start-up and shutdown.

The inverter has basic functions such as voltage regulation, frequency regulation, voltage stabilization, speed regulation, etc., and the application of modern science and technology can adjust the frequency without changing the voltage, and can also change the voltage without changing the frequency, and adjust the speed according to the needs of the load.

The frequency converter starts the pump, frequency and time.

Hello dear, when the output frequency of the variable frequency governor (also known as the frequency converter, the English abbreviation is VFD (variable-frequency drive)) VFD output frequency, the motor cannot be started because the motor does not have enough starting torque. Only when the output frequency of VFD reaches a certain value, the motor starts to accelerate, and the output frequency of VFD's old Mae Heng is the starting frequency FS. At this time, the starting current is larger, and the starting torque is larger.

The starting frequency of hail is set to ensure that the motor has enough starting torque when starting, so as to prevent the motor from failing to start or causing overcurrent tripping during the start-up process. In general, the start-up frequency should be set according to the characteristics of the load driven by the VFD. - In all aspects, avoid the low-frequency under-excitation area to ensure that the motor has sufficient starting torque; On the other hand, the starting frequency should not be set too high, otherwise it may cause a large current impact when the motor is started, or even overcurrent tripping.

The start-up frequency depends on the specific load situation. How do I determine the frequency of startup? Generally, most motors start to accelerate from 0Hz, but in some special cases, it is necessary to start direct acceleration from a certain frequency.

In this case, the frequency output of the VFD at the moment of startup is the startup frequency. Generally, you need to set the startup frequency in the following cases. 1.

For systems that use multiple pumps to supply water at the same time, it is difficult for the pumps to start if they are started at 0hz because there is usually a certain water pressure in the water supply pipeline. In this case, you need to start directly from a certain frequency in order to start the rotation smoothly. 2.

LoadIf the VFD is driven by a load, the friction is high when static, and it is difficult to start from 0Hz. When this happens, it is necessary to set the starting frequency to ensure that a certain starting impact is generated at the moment of starting, so that the system can start smoothly. 3.

In the process of starting the conical motor, there will be friction between the stator and the rotor, so it is also necessary to set the starting frequency to ensure that the magnetic flux can be quickly established at the moment of starting, so that a certain air gap between the stator and the rotor can be maintained, so that the motor can start smoothly. VFD starting frequency setting method (1) constant torque load. - The synchronous speed of the motor should not exceed the rated slip rate during general starting.

That is: where is the number of poles of the motor; 4n--rated slip, an= n1-ne; n1 - synchronization speed; ne - rated speed; (1) Square torque load. Since the square wave torque load has a small resistance torque at low speed, the starting frequency can be increased appropriately.

In practical application, the starting frequency should be set reasonably to solve the problems of motor starting difficulty and overcurrent tripping. For motors with large starting torque, it is necessary to first consider the appropriate starting frequency parameters of the setting table, and then set a reasonable torque lifting curve according to the actual load situation. If the VFD current is too high when starting, or even an overcurrent trip, it can be solved by extending the acceleration time.

But generally speaking, as long as there is no excessive traffic, the acceleration time should be as short as possible to improve efficiency.