Decentralised drive technology with controlled frequency inverters

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Heavy loads, high forces, long travel distances and lower requirements for precision and dynamics are characteristic of end-of-line packaging. Drive technology specialist NORD DRIVESYSTEMS outlines how the use of decentralised drive solutions with controlled frequency inverters can achieve cost benefits of up to 50%, depending on the type of system and application. 

Drives with centrally controlled servo motors are commonly used in end-of-line packaging. However, in applications with large inertia or long movement distances – for example palletising, stabilising or handling – they are usually not required. Decentralised drive solutions, for example with controlled asynchronous motors, are an efficient and economical alternative in this context. NORD DRIVESYSTEMS is very familiar with the industry’s requirements and implements modular drive concepts that are precisely tailored to the specific application and customer requirements.

Asynchronous motors 

Due to their higher inertia, NORD asynchronous or permanent magnet motors offer decisive advantages for end-of-line packaging. When moving heavy loads, they ensure better (movement) control than conventional servo solutions that must be adjusted to the respective application via large gear ratios. Furthermore, they enable the highest process stability, reduce vibrations, and reduce the risk of damaging the load or packaging machine. A further advantage is that NORD asynchronous or permanent magnet motors are available everywhere in a wide range, are easy to maintain and can be combined with different types of gear units and frequency inverters.

When used with decentralised frequency inverters, such as NORDAC FLEX SK 200ENORDAC LINK SK 250E or NORDAC ON SK 300P, components such as control cabinets and wiring are eliminated and the setup effort is significantly lower. An additional important advantage is space saving. With a modular concept, the drive also remains maximally flexible, as changes to the system architecture can be made at any time without large structural modifications, and additional drives can be easily added later without changes to the control cabinet.

Cost benefits of up to 50%

Thanks to low procurement costs, constructive freedom in machine design, faster commissioning, simplified maintenance and repair processes, asynchronous motors with decentrally controlled frequency inverters and encoder feedback via absolute or incremental encoders enable highly economical and precise positioning applications and dynamic movement of large and heavy packaging units. This makes this technology a real alternative for application fields such as end-of-line packaging, where heavy loads and high forces are the norm. Depending on the system type and application, the savings can amount to up to 50%.

A white paper titled “Drive technology in end-of-line packaging: Advantages of decentralised drive solutions with controlled frequency inverters”, is available for free download from NORD by following the link below.

bit.ly/NORDeolDrives

 

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