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FEATURE DRIVES, CONTROLS & MOTORS
How multifu Help overc
Semiconductors,
copper, aluminium, and many other
materials, are currently
in short supply, and this has altered the market dynamics and forced
electronic manufacturers to incorporate
components that are
more readily available. In line with this, Festo has combined its CMMT-AS servo drives for Profinet, Ethernet IP, EtherCAT and Modbus, into a
single multiprotocol drive, as Josh Roberts, product marketing manager for Electric Automation, explains
W
ith every crisis comes opportunities – for example, for those coping with different manufacturers’ PLCs and networks,
there is a great opportunity to simplify using a new range of multiprotocol devices. These are designed to provide seamless and transparent connectivity that extends from mechanics to servo drives and up to the cloud. However, Festo has taken this a stage
further, developing a single product that seamlessly connects to several networks, resulting in a reduction in complexity. This enables manufacturers to offer their customers up-to-date electronics, multiprotocol functionality and improved performance with a much-reduced inventory. By combining its popular CMMT-AS servo
drives for Profinet, Ethernet IP, EtherCAT and Modbus, into a single multiprotocol drive, Festo has been able to reduce the portfolio of this drive from 21-part numbers down to just seven: making selection faster and easier and reducing the stock holding required for machine inventory and spares.
Better availaBility The new multiprotocol drive features a FPGA (Free Programmable Gate Array) that reduces processing time for time-critical processes. For the CMMT-AS drive, it is used to reduce latency in the control-loops, making this product market leading in its ability to reduce oscillation and reduce mismatch between motor and load. In addition to the performance gains,
availability of the new drive will be improved: not 2
just in the current component availability crisis but also longer term. Reducing the portfolio of part numbers by two thirds through the introduction of the multiprotocol drive means that Festo can hold three times more inventory for the same cost, making availability better for customers. This advantage is also mirrored at the customer, especially for panel and machine builders who manufacture machines with different networks to suit the needs of their clients. Now they can hold servo drives in stock irrespective of network and just configure the drive to the right network when needed. The same advantage can be experienced for end-user spares. The CMMT range of servo drives are
universal drives for synchronous servo motors up to 6kw continuous power. Single and three phase versions are available in two form factors, with integrated filters, braking resistors and a further option for an external braking resistor and second encoder input. EPLAN macros ensure fast and reliable planning and documentation. A single cable connection to the servo motors reduces wiring time, costs and space in cable ducting.
simple, powerful software
Seamless connectivity should not only be limited to hardware – selecting and integrating
5 DESIGN SOLUTIONS DECEMBER/JANUARY 2023 The CMMT range of servo drives
products should also be a seamless journey for users. To help, Festo has developed a new simple sizing tool that allows panel builders and system integrators to input a handful of parameters for their application: either connected to a linear actuator, or the motor alone in a rotary application. The customer then receives five optimum solutions and motor curves, available for immediate transfer to the Festo online basket and even full commissioning files. The Electric Motion Sizing tool is available online and can significantly reduce the amount of time involved in researching and specifying compatible components. The seamless journey continues with
commissioning. The Festo Automation Suite (FAS) allows commissioning engineers to configure all products from remote IO to pneumatic valve terminals, PLCs and servo drives in a single free tool. The commissioning files can be directly imported from the Electric Motion Sizing tool. The FAS automatically connects to the Festo cloud to download
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