SIEB & MEYER launches new SD4x frequency converter family

Lüneburg, Germany – Industrial automation company SIEB & MEYER AG has launched its new SD4x family of frequency converters. This new generation of devices is based on the company's newly developed SD4x platform, aimed at future-proofing with enhanced performance and expanded functionality.

A key improvement in the SD4x series is its significantly enhanced processing power. The new 32-bit processor is up to five times faster than the previous SD2x product family, allowing for higher resolution and more accurate calculations. SIEB & MEYER has also transitioned from fixed-point to floating-point arithmetic, offering greater flexibility. With a 500-fold increase in memory capacity, storage limitations are unlikely for the foreseeable future.

The first device in the series, the SD4S frequency converter, is designed for small, high-speed spindles and motors in the range of a few hundred watts. Application examples include dental milling machines and precision machining equipment for the watchmaking industry. The SD4S offers galvanic isolation for the thermal contact, a novelty for small spindles where motor insulation might otherwise be insufficient. It features a compact design, measuring only 40 mm in width.

Parametrization is handled via a standard Ethernet interface, replacing the previously used USB connection. The SD4S also includes support for configurable digital measuring system interfaces such as Biss-C, EnDat2.2, and TTL. An integrated web server allows technicians to retrieve device information without separate software, and a real-time clock aids in analyzing errors and interactions with external events.