New servo motor from Rockwell improves machine performance

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New servo motor from Rockwell improves machine performance Speed is money, especially for manufacturers with processes such as converting, printing and web handling. With the new line of Allen Bradley Kinetix VPC servo motors from Rockwell Automation, manufacturers can run machines at higher speeds and higher torques, significantly improving machine throughput.

David Rajala, product manager at Rockwell Automation, says: "The Kinetix VPC servo motor provides high continuous torque at high speeds over long periods of time. Its interior, permanent magnets allow for field weakening, which reduces electromagnetic resistance so a machine can carry loads continuously and well above motor-rated speeds. This allows manufacturers to keep web lines and winders running at high speeds and constant power."

A cooling fan and cooling fins on the motor provide increased torque and power output. In addition, encoder options with improved resolution and accuracy provide more precise and responsive control, which is especially valuable for the printing industry.

Reduce machine downtime

The Kinetix VPC servo motor also helps reduce machine downtime in multiple ways. It uses larger, more robust bearings to improve L10 bearing life by up to 60 per cent. An optional single cable for power and feedback helps reduce installation, setup and maintenance time compared with dual-cable motors. In addition, a quick-change fan is field-replaceable, which helps maintain machine uptime.

The new motor line meets or exceeds IE4 efficiency ratings, which can save energy costs compared with using an IE3 or lower-rated motor. When used with the Kinetix 5700 servo drive, the Kinetix VPC servo motor can also help manufacturers use less current than with larger, more energy-intensive motor and drive options.

Rockwell Automation designed an integrated foot-mount option for the Kinetix VPC motor, which provides an alternative to the traditional, flange-mount method. This is beneficial in many applications where foot mounting is preferred.

The Kinetix VPC servo motor is currently designed only for use with the Kinetix 5700 servo drive. Rockwell Automation plans to evaluate functionality with other drives in the future.

As part of the Rockwell Automation Integrated Architecture platform, the Kinetix VPC servo motor and Kinetix 5700 drive are programmed using the Rockwell Software Studio 5000 design environment. This integrated design approach can help speed up machine deployments and reduce the likelihood of manual errors.

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