Professional Water Pump Inverter Manufacturer

AUSENIST is a professional water pump inverter manufacturer in China, supplying intelligent variable frequency drives for pump manufacturers, distributors, importers and system integrators.

Our pump-specific VFD solutions are designed for constant-pressure water supply, booster pumps, irrigation, industrial water systems, sewage treatment and other pumping applications.

Unlike a basic general-purpose VFD, an AUSENIST intelligent pump inverter combines motor speed control with pressure control, multi-pump management, automatic protection and communication functions.

This makes it suitable not only for controlling a motor, but also for becoming the main controller of an intelligent pumping system.

Compatible with Different Pump Brands and Pump Types

Pump manufacturers and distributors often work with different motors, pump structures and brands.

AUSENIST pump inverter solutions are designed for broad pump compatibility and can be applied to centrifugal pumps, booster pumps, submersible pumps, sewage pumps, irrigation pumps and other common water pump applications. This broad compatibility is one of the product advantages highlighted in AUSENIST's sales and technical materials.

This is especially useful for distributors and OEM manufacturers that want one pump-control platform for several product lines.

Cabinet Installation or Direct Pump-Mounted Design

A conventional industrial inverter normally requires a separate electrical cabinet.

AUSENIST pump inverter solutions can also use a compact backpack-style installation, allowing the inverter to be mounted directly on a compatible pump motor junction box.

This can reduce control cabinet space, simplify wiring and help pump manufacturers create a more integrated finished product.

The 620 and 820 pump inverter platforms both use an IP54 protected design and support direct motor-mounted installation.

For OEM pump manufacturers, this means the pump and inverter can be supplied as one integrated solution instead of two separate products.

Up to 6 Pumps in One Intelligent System

AUSENIST intelligent pump control can support up to six pumps in a coordinated system.

The 620 platform supports a dual-master architecture with up to four auxiliary pumps.

The important difference is that this is not simply six pumps running in parallel.

The system includes intelligent pump-management logic.

Dual-Master Redundancy

If the active master experiences a communication fault, sensor problem or hardware failure, the backup master can automatically take over system control.

This helps maintain water supply continuity in applications where system reliability is important.

Automatic Failed-Pump Bypass

If one auxiliary pump fails during multi-pump operation, the controller can automatically skip that pump and start the next available unit.

A single failed pump therefore does not necessarily stop the complete system.

Automatic Pump Rotation

Pump operating order can be rotated automatically according to a configured time interval.

The 620 system uses an 8-hour default rotation setting in the documented configuration.

By distributing operating hours between pumps, the system helps avoid excessive use of one pump and balances equipment wear.

One Inverter for PMSM and Induction Motors

Modern water pump manufacturers increasingly use permanent magnet synchronous motors, while many existing pumps continue to use conventional asynchronous induction motors.

AUSENIST pump VFD platforms support both:

• Permanent Magnet Synchronous Motors — PMSM
• AC Induction Motors — IM

This two-in-one compatibility means pump manufacturers can use compatible AUSENIST inverter platforms for different motor product lines.

For OEM projects, motor parameters can be matched according to motor voltage, rated current, rated speed and actual pump requirements.

Intelligent Constant-Pressure Water Supply

Constant-pressure control is one of the main applications of AUSENIST pump inverters.

The inverter uses PID control to adjust pump speed according to actual water demand.

When water consumption rises, pump speed increases.

When demand falls, pump speed decreases.

When there is no water demand, intelligent sleep control can stop unnecessary pump operation.

When system pressure falls again, the pump can automatically restart.

The 620 product information specifically describes PID speed regulation according to water consumption together with intelligent sleep operation.

This makes the solution suitable for residential buildings, hotels, factories, irrigation systems, commercial booster systems and other constant-pressure water applications.

Intelligent Pump Protection

A pump-specific inverter needs to protect more than the motor.

AUSENIST intelligent pump drives include application-oriented protection functions such as water-shortage protection, pipe-burst shutdown, high/low water-pressure alarms, input/output phase-loss protection, anti-freeze operation and anti-rust protection.

These functions are useful in unattended pump installations because many common pump failures are related to the water system rather than the motor itself.

For example, dry-running caused by insufficient water can damage a pump, while abnormal pressure can indicate pipe-network problems.

By integrating pump-specific protection into the VFD, fewer external control components may be required.

Soft Start and Reduced Water Hammer

Direct motor starting can produce a high starting current and sudden changes in pipeline pressure.

AUSENIST pump VFDs use smooth acceleration to reduce motor starting impact.

The 620 documentation specifically identifies soft starting as a method for reducing starting current and reducing water-hammer impact on the pipe network.

This can improve the operating stability of booster and constant-pressure water systems.

Dual RS485 Communication

Communication is increasingly important for intelligent pumping systems.

The AUSENIST 620 series provides dual RS485 interfaces throughout its power range, supporting expansion and multi-drive communication.

This is useful for multi-pump systems where multiple inverter units need to communicate.

The 820 series uses a different communication configuration in some lower-power 220V models, while its 380V range uses dual RS485 similar to the 620 platform.

620 or 820: Which Pump Inverter Should You Choose?

The two series are designed for slightly different customer requirements.

The 620 series covers 0.75kW to 7.5kW and uses dual RS485 throughout the range. It is particularly suitable when strong multi-pump communication and intelligent constant-pressure functions are required.

The 820 series covers 0.75kW to 22kW, providing a wider power range. In its 220V 0.75kW and 2.2kW models, it uses a single RS485 interface, while 380V versions use dual RS485.

Both platforms share important pump-oriented functions including IP54 protection, PMSM/IM compatibility, multi-pump control, automatic restart, anti-freeze and anti-rust functions, water-shortage protection and pipe-burst shutdown.

OEM Water Pump Inverter Solutions

AUSENIST works with water pump manufacturers that want to integrate an inverter directly into their own pump products.

OEM and ODM projects can include private branding, product labels, software, parameters, pump-control logic, hardware, PCB, enclosure, display, communication settings, packaging and manuals.

The backpack-style design is particularly suitable for OEM pump manufacturers because the VFD can become part of the complete pump assembly rather than an additional external control product.

Applications

AUSENIST intelligent pump inverter solutions are suitable for domestic constant-pressure water supply, commercial booster systems, industrial water boosting, agricultural irrigation, sewage treatment, fire-protection pump applications and other pump-control systems. These application categories are also identified in the company's customer-facing product materials.

Frequently Asked Questions

Can AUSENIST pump inverters work with different pump brands?

Yes. The pump inverter platform is designed for broad compatibility with different water pump brands and types.

Can the inverter control more than one pump?

Yes. Compatible systems can support up to six pumps, including dual-master and auxiliary-pump configurations.

What happens if one pump fails?

In a compatible multi-pump configuration, the controller can skip the failed auxiliary pump and start the next available pump.

Does the system automatically rotate pumps?

Yes. Timed automatic rotation can distribute operating hours across the pumps and help balance wear.

Can one inverter work with PMSM and induction motors?

Yes. Compatible AUSENIST pump VFD platforms support both permanent magnet synchronous motors and asynchronous induction motors.

Can the inverter be mounted directly on the pump?

Yes. IP54 backpack-style models can be installed directly on compatible motor junction boxes.

Does the inverter support constant-pressure control?

Yes. The pump inverter uses PID control and pressure feedback to automatically adjust motor speed according to water demand.

Does it have dry-run protection?

Compatible models include water-shortage protection together with other pump-specific protection functions.

Does it support RS485?

Yes. The 620 series uses dual RS485 interfaces throughout its power range.

Looking for an Intelligent Water Pump Inverter Manufacturer?

If you are a water pump manufacturer, distributor, importer, irrigation company or system integrator looking for a pump-specific VFD, AUSENIST can provide standard products as well as customized OEM and ODM solutions.