The incorporation of Motortronics’s unique iERS technology allows VMX-SGY to deliver unrivalled soft start performance alongside energy saving capability on partially loaded motors. With product size and cabinet capaci- ty becoming an increasing focus we developed VMX-SGY to deliver the greatest power to size ratio of any other soft starter. In addition VMX-SGY uses Motortronics’s globally renowned Automatic Setup feature which allows the user to programme the unit to any common application using a simple 4 button process. To keep pace with the modern technology, VMX-SGY removes the need for buttons and uses intuitive touch screen technology. With built in full motor overload protection as well as full data logging, field serviceable fans, upgradeable firmware and extensive input/output programmability, VMX-SGY meets all of the key design criteria.
With a unique combination of features, performance and size, Motortronics has redefined the benchmark for soft starter design.
에너지 저감 기술
에너지 원가 상승으로 에너지 저감에 대한 관심이 나날이 높아지고 있습니다. 생산원가 저감을 위하여 모터트로닉스에서 에너지 저감이 되는 제품을 새로 개발하여 출시하게 되었습니다. 오늘날 가장 주요하게 사용되는 모터는 속도와 전압이 고정된 AC 모터입니다. 이러한 모터는 일반 산업현장의 23%를 차지할 만큼 큰 비중을 가지고 있습니다. 기존에 에너지 저감이 되지 않는 모터에 대하여 기동 방식을 바꿈으로 인해서 에너지 저감이 가능해지는 기술적인 방법에 대한 관심이 높아지고 있습니다.
Energy recovery with Internal bypass as standard
iERS is our patented energy saving system with a combined internal bypass to save energy on lightly loaded motors. iERS reduces the voltage and current supplied to a lightly loaded motor to only allow the motor to consume the exact amount of energy required to maintain the speed at that load.
When the motor is at full load the internal bypass reduces the losses produced by the control element. This combined approach enables iERS to save more energy in more applications than any other competing technology. iERS has been market proven over the past 10 years and has now reached its latest development realising even greater savings. Applications such as fans, pumps and chillers can typically see savings of around 8-40% of total energy consumption.
How it works
Motortronics’s energy saving system works by reducing the current and iron losses of a motor not running at full load. The energy savings will depend on a number of factors including the efficiency of the motor and the load. Motortronics Soft Starters will also save businesses money by reducing the electrical and mechanical strain placed on applications – resulting in less ‘down time’ and maintenance cost on electrical circuits, gearboxes, belts and associated mechanical components.
iERS is a technology that monitors the voltage, current and power factor during the start of a motor and then uses this information to ensure the motor runs efficiently under all load conditions.
When any AC induction motor becomes lightly loaded, the power factor and the efficiency decrease. This is caused by the inherent design of the motor and the laws of physics, and leads to energy being wasted. These are known as excitation losses.
iERS continually monitors the power factor, recognizing when the motor is becoming lightly loaded and then instant- ly employing strategies to reduce the losses by controlling the voltage and current supplied to the motor to match the load conditions. This not only increases the part load power factor, but reduces the energy consumption in kW. When the motor becomes fully loaded, the power factor increases, and iERS automatically bypasses itself to ensure the most efficient use of energy in all motor load conditions.