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Micromech introduces Yaskawa's Sigma 2 and Sigma 5 to its range of servomotors and drives
The Sigma 5 servopack, the latest in the range of servomotors and servo amplifiers, features compact sizes and low maintenance requirements, whilst claiming to offer excellent reliability.
An auto-tuning algorithm allows the Sigma 5 to precisely set-up two axes of high performance machinery in just two hours.
Motor load effects can be simulated in the servo amplifier using a mathematical model that is part of a new control algorithm. This allows the complete motion control system to be tested before being connected to the motor.
Five different algorithms are incorporated to counter different forms of vibration at frequencies from 50Hz to 5kHz and above, resulting in quieter and improved production.
With an operating range of 0-55°C without derating and the ability to handle 350% torque overloads for 3–5s, Sigma 5 is designed for use with machines in the fields of electronics, semiconductors, packaging, printing and machine tools, as well as in the injection moulding and metal forming industries.
As well as servo amplifiers, the system includes new ranges of rotary, direct-drive and linear motors.
The rotary motors have 30% fewer components, weigh 20% less, and are 30% shorter than previous models.
New stator and winding designs allow smaller machines to be used in many applications, cutting energy consumption by up to 30%.
The Sigma-2 range features upgraded control algorithms, such as the model follow-up control and the vibration suppression control.
Position settling time is designed to be reduced to a third of conventional models, with rapid response provided thanks to reduced CPU operation time and improved control algorithms.
Sigma-2 offers speeds up to 6000min–1, while its flange is designed as IEC72.
Online auto tuning adjusts machine characteristics and sets servo gains, allowing for easy set-up and maintenance.