Electricity and Control May 2020

DRIVES, MOTORS + SWITCHGEAR : PRODUCTS + SERVICES

Energy-efficient drives for IPPs in the sugar industry For heavy industrial engineering environments such as sugar mills, SEW-EURODRIVE (Pty) Ltd. offers a range of transmission solutions to assist in cutting costs. Sugar millers depend on high plant availability for maximum input to output. SEW-EURODRIVE is an ideal transmission solutions partner to add value to the sugar industry due to its expertise, available locally 24/7. In this market segment, sugar millers are not only looking to upgrading old and outdated systems, but also at the value-add that SEW-EURODRIVE can offer them as independent power producers (IPPs) in the sugar industry. Recently, Illovo Sugar MD Mamongae Mahlare was quoted by the Sunday Times as stating that IPPs provide “a critical lifeline” for the sugar industry, which is faced with impacts such as the sugar tax and falling prices for exports. Sugar millers produce their own additional power by burning cane fibre. Here the expertise of SEW-EURODRIVE in energy-efficient solutions is key. It can apply real-time power-saving solutions to produce the same performance from older existing equipment and applications. These energy-efficient transmission solutions potentially produce more output power or torque while drawing less power from the grid. Applications for SEW-EURODRIVE’s mechanical and electrical transmission solutions in the sugar industry include milling tandems, bagasse conveyors, juice agitators, clarifiers, crystallisers, sugar dryers, and other production applications. A wide range of transmission solutions means there is a fit for every application. High ingress protection (IP rated), high IE3 efficiency classes, and the high thermal Magnetic encoder system with Drive-Cliq interface The BML absolute magnetic encoder in the SGA series stands out in any application where high absolute accuracy of position and end-of-travel is required. Comprehensive diagnostics functions ensure reliable operation and more efficient maintenance. With its Drive-Cliq interface the Balluff measuring system can also be perfectly integrated into Siemens controller environments. Siemens has certified the system accordingly. Plug and play installation makes incorporation into the drive system easy. The controller automatically detects the sensor and its basic settings. The sensor also offers great flexibility, as leaving and reengaging with the tape is permissible. This opens up simple and economical solutions for demanding applications in the field of automation as well as machine tool building, particularly for specialised machines. As the system works magnetically, it is insensitive to temperature change, dirt (such as from dust and oil), and wear. With its compact form the measuring system is also easy to integrate into existing applications, even in tight mounting conditions. The generous read distance of 1.3 mm makes installation easier.

class ratings (H) of standard IEC motors from SEW- EURODRIVE mean sugar millers are assured of the highest quality electrical transmission solutions which are also cost-effective. Other real business investment solutions include the MIG high-torque energy- efficient mechanical drive system. These units read the output load continuously and adjust the power needed to drive the application, in addition to saving energy. The Xe series allows for compact solutions to replace old cumbersome systems and boost mechanical

efficiency. Planetary transmission drive systems provide localised assembled solutions and cut down on delivery lead times to benefit sugar millers further. SEW-EURODRIVE also offers its customers the benefits of local stockholding, technical expertise, industry knowledge, around-the-clock operation, and purpose- driven employees to add value to customers’ businesses and lower costs of ownership.

SEW- EURODRIVE provides energy-efficient cost-effective electrical transmission solutions for the sugar milling industry.

For more information contact SEW-EURODRIVE. Visit: www.sew-eurodrive.co.za

In practical operation continuous plausibility checking ensures high reliability, because the system consistently checks the measurement quality. Automatic condition monitoring checks the signal quality and, using the controller, is a convenient way to evaluate the function reserve. Status LEDs and diagnostic functions ensure reliable operation and more efficient maintenance. The linear measuring system is suitable for long measuring lengths up to 48 metres as well as for applications which require high precision. With an accuracy of up to ± 12µm and a resolution

of 1µm the measuring system meets these requirements. It is also simple to retrofit.

For more information visit: www.balluff.com

The BML absolute magnetic encoder delivers reliability in machine applications where high absolute accuracy of position and end-of-travel is required.

Electricity + Control MAY 2020

15