KL1501 - Beckhoff Bus Terminal Digital Input

The Beckhoff KL1501 Bus Terminal Digital Input is built for accurate signal acquisition and counter functions within industrial automation. It features one up/down counter and two dedicated up or down counters, supporting flexible counting operations. Designed to operate at a 24 V DC nominal voltage, it detects “0” signals below 5 V and “1” signals above 15 V, providing dependable input recognition. Each channel requires a typical 5 mA input current, while the terminal consumes 50 mA via the K-bus, making it suitable for large I/O systems. Its process image supports 32-bit data plus 8-bit control and status, ensuring accurate integration into PLC-based networks.

Housed in a robust polycarbonate body with compact dimensions of 12 x 100 x 68 mm, the KL1501 is lightweight at approximately 50 g and mounts easily on a 35 mm DIN rail. Side-by-side mounting is possible via Beckhoff’s double slot and key system, while spring-actuated connections simplify wiring for solid, flexible, and ferrule conductors. Clear channel indication is provided with signal LEDs, making commissioning and troubleshooting straightforward. It also supports switching outputs with a maximum output current of 0.5 A per channel, short-circuit proof for durability in demanding conditions. Approvals from CE, UL, CCC, ATEX, IECEx, and cFMus confirm its suitability for global applications, while compliance with vibration and EMC standards ensures stable operation in rugged industrial settings.

Applications of the KL1501 Bus Terminal Digital Input extend across automotive manufacturing, packaging lines, and machine control systems where accurate counting and monitoring of sensors or encoders is critical. It is frequently used for detecting pulses from proximity sensors, switches, and incremental encoders in real-time automation tasks. Panel builders and OEMs value its compact form and reliable performance, while maintenance engineers benefit from its easy wiring and diagnostic LEDs that reduce downtime. Educational institutes and training labs also use this terminal to teach digital input handling, counter functions, and PLC integration, giving students valuable practical experience. With proven durability, high accuracy, and strong certifications, the Beckhoff KL1501 is a trusted solution for industries in India and worldwide seeking dependable Bus Terminal Digital Input modules. For more details, you can request a callback or visit the official Beckhoff product page.