Lenze is your competent partner for VFDs for pumps, pump skids or machines where pump control is essential.
Historically, pumps operated directly from the mains, but the usage of frequency drives brings substantial economic advantages. Frequency drives enhance energy efficiency and the demand for precise control is pivotal in driving this transformation. Moreover, frequency drives offer the opportunity for more intelligent application deployment.
Whether you are redesigning an existing system or integrating a frequency drive into a new pump setup, Lenze offers the perfect solutions and unparalleled expertise. Contact us today to learn more about our VFD solutions!
Lack of skilled personnel?
Quick installation and easy handling are guaranteed with Lenze VFDs to reduce the installation time by at least 30 minutes per VFD. Features like the memory module for parameterization, cable connectors and the intuitive interface make the commissioning easy and efficient.
By adopting these innovative and dependable VFDs, you will observe a significant transformation in operational performance.
Fully scalable: The perfect drive for your application
For mobile pumps in the food and beverage industries, the i550 protec is ideal, offering IP66/NEMA 4X protection, compact design, and easy installation.
In dosing pump systems, where space is limited, the i510 cabinet drive excels with its slim design and low power loss, ensuring optimal space utilization and quick setup.
For progressive cavity pumps handling wastewater and industrial fluids, the i550 protec offers robust performance with outputs from 11 to 75 kW (15 to 100 hp), and is suitable for standalone modules.
Hydraulic pump units for presses and machine tools benefit from the motor-mounted i550 motec's compact and efficient design.
Centrifugal pumps
Indispensable in numerous commercial and industrial applications, ideal for non-critical liquids such as water.
Operating modes
They most efficiently handle small to high volume flow of liquids. They have a quadratic load profile, i.e. the required torque (M) is the square of the volume (n) with M~ n2.
Typical applications
- Circulation pumps (cooling/heating)
- Process technology
- Filtration pump systems for water or food & beverage
- High pressure multi-stage pumps
- Irrigation technology
- Swimming pool pumps
- Water and wastewater technology
Lenze drives are energy efficient, boasting the lowest energy losses. This remarkable performance enhances overall efficiency and simplifies cooling processes within control cabinets. Additionally, they provide planning reliability in accordance with the stringent standards set by the European Ecodesign Directive.
Reducing the speed or flow rate by 20% can lead to 50% energy savings with VFDs which is especially useful for applications with varying demand. Even fixed-speed applications, which are often oversized, can benefit from using a VFD with a demand-based PID controller. Energy cost saving with an 11 kW pump sums up to � 3,000 (~ 3,300 USD) per year (@ 0.15 Ce/kWh).
i500 features:
- Energy-saving motor control: Energy-efficient V/f eco control, vector control for AM or PM motors
- ?Easy maintenance: the decentral i550 protec drive features an optional integrated service switch
- Specific pump functions:
- Cascade control (up to 3 pumps)
- Pump rinse/sleep mode in PID mode
- Purge (cleaning) function
- Minimum flow rate
- Pump runout detection
- Pipe burst detection
- Pipe filling/water hammer minimization
- Dry run/cavitation prevention
- Keypad user units (e.g. m3/h)
Positive displacement pumps
These dedicated pumps are primarily used for high-viscosity or acidic fluids, very high-pressure generation or precise volume control. Typically, these pumps are more complex, costly and require more maintenance.
Using VFDs helps improve process control, extend service-friendly operation, and enhance efficiency.
Typical applications
- Measuring and dosing pump equipment
- Filtration pump skids
- Industrial or waste water sludge conveying
- Hydraulic pump aggregates
- Progressing cavity pumps
- Cooling and lubrication equipment for machine tools
Operating modes
There is a great variety of reciprocating or rotary pumps like progressive cavity, screw, gear, diaphragm, hose, lobe, piston and further pump design.
Variable frequency drives also play a crucial role in enhancing the longevity of equipment, particularly pumps, by minimizing wear and tear. By precisely controlling the motor speed, VFDs ensure that pumps operate only at the necessary speed, reducing mechanical stress and preventing excessive strain. This optimized operation not only conserves energy but also significantly diminishes the risk of premature failure. Consequently, maintenance costs decrease, and the overall operational efficiency of your system improves.
i500 features:
- High-performance vector control with the shortest step response times
- ?Unique PM motor control: 200% overload at “0” speed. Maximum overload and sensorless precise dosing with Lenze IE5 motors m5550p
- Extended pump and process functionality with i650 motec with integrated PLC for sequence control and direct integration of smart sensors via IO-Link interface
- Flexible portfolio: economical solutions with i550 frequency drives or i950 servo drives for performant high-end solutions
