Yaskawa America's Sigma-7 400 Volt servo motor, amplifier

March 13, 2018
New amplifier design offers advantages to machine builders and end users

Yaskawa America Inc.’s new 400 Volt servo motor and amplifier offering within its Sigma-7 series includes a completely new amplifier design that offers advantages to machine builders and end users seeking to upgrade to a 400 Volt motion control system. The amplifier has a new book-style form factor built around a single standard height and two standard widths. This makes control cabinet design and configuration easier and more predictable. Installation ease is also enhanced by the presence of wiring connections on the top and bottom of the amplifiers, allowing the routing of wiring above and below the amplifier, and eliminating the need for terminal board breakouts.

The new 400 Volt line retains the full set of performance advantages shared by all Sigma-7 products, which include: 3.1 kHz frequency response, 24-bit encoder feedback, new tuning functions that combat vibration, resonances, friction and ripple effects; and motor compatibility with comparably sized Yaskawa products.