SEW-EURODIVE: Maximizing Gearmotor Speed Range

November 2, 2018

Maximizing Gearmotor Speed Range is SEW-EURODRIVE’S technical white paper that shows how to operate VFDs above 60Hz to widen gearmotor speed range, improve system stability, and reduce cost. In fact, operating VFDs as high as 120Hz may significantly enhance gearmotor performance.

Many engineers assume that the inverter and gearmotor must operate within the 60Hz threshold. Some think that going to a high speed above 60Hz may cause the motor to overheat. But in reality, stopping at 60Hz may actually cause the motor to overheat at a low speed.

With a carefully designed drive system and correct ratio, pushing the operating frequency above 60Hz is possible using one of two proven control methods – field weakening or supercharging. Both methods are discussed in detail, along with technical charts and formulas. Through a common conveying example, the paper demonstrates how to properly select a gearmotor that will significantly enhance performance in the following ways:

• Increase stability by reducing inertia mismatch

• Widen the available speed range

• Eliminate a costly ventilator fan at low speed

• Eliminate motor overheating at low speed

• Enable the use of a smaller motor

Visit www.sewwhitepapers.com/vfd to download the PDF.

Related Articles

DCS Ontario Launching New Agency to Better Serve Tradespeople 1 400

Ontario Launching New Agency to Better Serve Tradespeople

 

The Ontario government has launched Skilled Trades Ontario, a new Crown agency, to improve trades training and simplify services. The new agency will promote and market the trades, develop the latest training and curriculum standards, and provide a streamlined user-friendly experience for tradespeople. These changes will result in more workers for in-demand jobs and prepare Ontario for a strong economic comeback.

 

|

SEW-Eurodrive Image Film

March 5, 2024 Innovative strength, tradition and customer focus – these are the cornerstones of SEW-Eurodrive’s success. With a comprehensive product portfolio and a wide variety of customer-oriented service modules, they offer their customers added value and measurable benefits. They want you and them to be jointly successful. More Information SEW-Eurodrive Related Story SEW-Eurodrive Demonstrates…

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • Understanding Industrial Relay Contact Configurations: NO, NC, SPDT, and DPDT

    November 19, 2024 Relays serve as the backbone of industrial control systems, enabling the control of high-power circuits using low-power signals. Understanding different relay contact configurations is crucial for designing effective control systems. Let’s explore the various types of relay contacts and their applications in industrial automation. Basic Contact Types and Their Applications The foundation of… Read More…

  • Training Courses on Plant and Machinery Safety from Pilz

    November 19, 2024 Plant safety is vitally important for the safe operation of technical plants. As a machine manufacturer or operator you are legally obliged to ensure the safety of plant, machinery and devices. Training courses teaches you to identify risks and avoid accidents. Further training for safety officers and employees is the key to success here. With this knowledge… Read More…