KL2791-0011
by Beckhoff
The Beckhoff KL2791-0011 module is part of the KL Analog Input Modules series from Beckhoff. It functions as an AC motor speed controller for single-phase motors, offering precise speed regulation via phase/full wave control. Operating at a nominal voltage of 230 V AC and maintaining a resolution of 1%, this controller ensures accurate speed adjustments in conveyor, pump and fan applications where fine-tuned motor performance is critical.
In its technical design, the KL2791-0011 provides a rated output of ≤200 VA to drive one motor output. It draws a typical 95 mA from the K-bus and exhibits a leakage current (off state) of <1 mA>, minimizing power losses during standby. Connection is accomplished through a direct motor connection, and the device processes 16-bit output data with optional status control. Reverse voltage protection is not provided, and the unit can manage a single motor output with reliable performance.
The KL2791-0011 is rated for operation in ambient temperatures ranging from 0…+55°C and can be stored between –25…+85°C, ensuring durability across varied industrial environments. With an electrical isolation rating of 3750 V AC for 1 minute between K-bus and field voltage, and weighing approximately 60 g, it offers compact integration on a standard 35 mm DIN rail. The module is marked with CE approval, confirming compliance with relevant safety and quality standards. In industrial automation systems, this controller delivers efficient, accurate speed control for single-phase motors, enhancing process reliability and energy efficiency.
