MOVIDRIVE^® B – MOVITRAC^® B: Saving Energy with Inverters

Functionality and size are the key factors for selecting an inverter that matches the application. The MOVIDRIVE® B drive inverter and MOVITRAC® B frequency inverter series of SEW-EURODRIVE cover a comprehensive range of functions and sizes.
Especially the demand for energy efficiency is met by both units with integrated functions.

MOVIDRIVE^® B offers a large range of basic functions and a broad spectrum of options. It is the first choice for sophisticated applications.

MOVITRAC^® B offers a compact design with a complete range of functions. It is the most cost-effective inverter for standard tasks.

With these two inverters, SEW-EURODRIVE offers an optimal drive solution for every application from simple speed selection to dynamic positioning.

Process adaptation

Infinitely variable control of speed and torque allows almost every process to be adapted to the actual demand, making it more energy efficient. Depending on the application, between 50% and 70% of energy can be saved.

Further saving potentials can be tapped in drive tasks with cyclical acceleration and deceleration by implementing energy efficient motion sequences; maximum acceleration, speed and deceleration are not always necessary.

Conclusion:
Pumps and fans controlling the delivery rate by means of valves and dampers are classic examples of applications for which the energy consumption can be significantly reduced by controlling the speed. In the area of conveyor and handling applications, developing a suitable travel profile also reduces energy consumption.

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Energy-saving function

The energy saving function of MOVITRAC® B and MOVIDRVE® B offers advantages when the application has to be operated in the part-load range and dynamic properties are not a main requirement when load changes occur.

The dynamic adjustment of the magnetization current enables the motor to be operated with optimum efficiency in every operating point. The energy consumption is reduced by up to 30% depending on the application.

The energy saving function ensures optimum efficiency of the drive especially in conjunction with an energy efficient motor.

Conclusion:
Losses are reduced to a minimum! Can be used in applications with varying loads, such as roller conveyors, chain conveyors, fans, pumps, etc.

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DC link coupling

By connecting the DC links of several inverters, regenerative energy of one drive can be used directly as motive energy in another drive.

This measure can reduce energy consumption from the supply system if the drive sequences are segmented and suitable travel profiles have been selected.

For implementation of this measure, an intelligent drive controller is required.

Conclusion:
Given in-depth knowledge of the application, it is possible to minimize energy consumption from the supply system, saving up to 50% of energy, by using a drive controller and coupling the DC links. Used in SRUs and hoists.