The launch of its Vickers by Danfoss Variable Speed Drive (VSD) solutions in Europe, the Middle East, and Africa has just been announced. The Vickers by Danfoss portfolio features induction motor and servo motor VSD solutions, offering a broad range of power, dynamics, and control options. The VSDs save energy, cut costs, reduce heat and noise, and simplify configuration and commissioning. The modular offering fits most industrial hydraulic application needs and machine types, with particular relevance in discrete and process manufacturing.
Comprising a hydraulic pump, electric motor, and frequency drive with control logic, Vickers by Danfoss VSD systems improve the energy efficiency and performance of hydraulic machines by intelligently varying the speed of the electric motor and pump to precisely match the demands of the duty cycle. This smart control technology eliminates the energy waste associated with traditional constant-speed systems, resulting in energy savings of up to 60%, depending on the machine’s duty cycle. Lowering energy consumption reduces operating costs while helping machine owners meet energy efficiency and/or sustainability targets.
The Vickers by Danfoss induction motor VSD solution features the PVM Code B axial piston pump, Danfoss VLT® AutomationDrive FC 302, and an asynchronous induction motor. Designed for systems with low dynamic and control requirements, the solution is suitable for 3- to 250-kilowatt applications (higher than 90 kW engineered to order). It offers speed and flow on demand with open-loop control. In comparison to traditional constant-speed architectures, the induction motor VSD system can reduce energy consumption by 20 to 40%, depending on duty cycle.
This servo motor VSD solution features the VGPS internal gear pump or PVMX axial piston pump (the latter currently engineered to order), a PMSM (servo) motor, and a Danfoss iC7-Automation drive, including proprietary p/Q control software for closed-loop pressure/flow control. Designed for systems with high dynamic and control requirements, the solution is suitable for 3- to 100-kW applications. It offers pressure and flow on demand with closed-loop control. The easily configurable p/Q control logic offers simple setup and integration, shortening design, installation, and commissioning time. The servo motor system can reduce energy consumption by 30 to 60%, depending on duty cycle. It can also simplify machine architecture and complexity, as the precise and highly dynamic pump speed control enables the elimination of separate pressure and flow control valves.
Both the induction and servo motor VSD solutions lower heat generation and reduce overall noise exposure. By improving energy efficiency, VSDs minimize heat generation, enabling downsizing or elimination of oil coolers and delivering lower total installed costs. Reducing heat also extends the life of seals and oil. When the motor and pump operate at lower speeds, the machine operator and those working nearby are exposed to less noise. Quieter operation enhances workplace safety and operator comfort, offers greater design flexibility in terms of power unit placement, and may reduce secondary noise reduction measures.
Vickers by Danfoss VSDs enable the downsizing of pumps and motors to cut costs and reduce space requirements. Because the system can utilize the full motor speed range rather than running at a fixed speed, pump displacement can be significantly smaller without changing the maximum available oil flow. A pump with smaller displacement requires less torque to deliver the same pressure, and because the high overload capability of electric motors can be used to deal with the short high-torque portions of the duty cycle, a smaller motor size can be selected. The smaller motor and pump shrinks the machine's footprint and installed power while improving the total cost of ownership.
“The superior performance of Vickers by Danfoss Variable Speed Drive solutions is rooted in seamless integration. Danfoss drives are a perfect fit for hydraulic VSD systems, resulting in a harmonized system that is easy to commission and operate,” said Juraj Bittner, Product Manager, Industrial Solutions, Danfoss Power Solutions. “By combining the durability and reliability of Vickers by Danfoss pumps with the intelligent control of Danfoss drives, our VSD systems deliver a powerful, efficient, and cost-effective solution for modern hydraulic applications.”
These VSDs are ideal for a wide range of industrial hydraulic applications. They are especially suited to discrete and process manufacturing applications with intermittent duty cycles in which peak power is not required most of the time, such as injection molding, rubber molding, machine tools, presses, die casting, metal forming, and food processing.
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