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WEG enters the European servodrive market

02 January, 2014

The Brazilian motors and controls manufacturer WEG, is entering the European servo market for the first time. The company has been selling servo motors and drives in other parts of the world for about 25 years, and has decided that the time is now right to offer these products in Europe as well. WEG's latest servo products ­– its sixth generation – have been designed with the European market in mind.

At the recent SPS IPC Drives show in Germany, WEG launched a range of servodrives with built-in PLCs, a matching series of servomotors, and gearboxes for servo applications based on the modular geared motor system produced by its Austrian subsidiary, Watt Drive.

Central to the new portfolio are the SCA06 servodrives, which are suitable for precise, dynamic speed and torque control and for positioning tasks. The drives are suitable for both simple and complex applications.

The drives will be available in current ratings from 4–24A in three versions: a 4A output model with a single-phase 230V AC input; a 5–24 A output model with a three-phase 230V AC input; and a 5.3–14 A output model with a three-phase 400V AC input.

The drives have three expansion slots and can accommodate up to seven expansion modules. This will allow them to support extra encoder inputs or simulated encoder outputs, enabling synchronous operation of multiple drives. Other modules provide more digital and analogue I/O, add safety functions, and act as Modbus RTU, Profibus or EtherCat interfaces.

The built-in PLC supports ladder programming and function blocks to the IEC 1131-3 standard, and allows complex interlocking processes to be implemented.

WEG SCA06 servodrive
Designed for the European market: WEG's SCA06 servodrive

A CANopen interface is standard and can be set as master or slave. Also built in are mains filters, brake choppers and a six-digit LED display. WEG offers programming software that provides diagnostic and scope functions.

The SWA servomotors will come in three sizes with torque ratings from 0.8–40 Nm, and operating speeds of 2,000, 3,000 and 6,000 rpm. They provide constant torque over a wide speed range and have high overload capacities. The IP65-protected motors can be supplied with electromagnetic brakes.

WEG will also be offering complete servo geared motors, created by using an adapter to pair its servomotors with gearboxes from Watt Drive’s modular MAS range. WEG says that these systems will deliver low backlash and high efficiency to ensure high positioning accuracy and smooth operation, even at relatively high speeds.

WEG’s servo products are due to go on sale in Europe after the Hannover Fair in April, 2014.

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