Machine Design

Product Spotlight: Speed Control I/O for Pump and Fan Motors

The KL2791 bus terminal efficiently controls single-phase AC motors.

The device permits direct connection of small, 1-A, single-phase 120-V, 60-Hz motors. The terminal reduces energy use of capacitor, universal, and shaded pole motors as well as drives with quadratic load characteristics such as fans and pumps. Motor speed is specified by a 16-bit value. With the terminal, the motor is switched on and off with a mains synchronous pattern so the motor consumes less power.

Beckhoff Automation LLC
12150 Nicollet Ave. S
Burnsville, MN 55337
(952) 890-0000

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.