Technology: SSI encoder interface
Number of channels: 1 encoder interface
Encoder connection: binary input: D+, D-, binary output: Cl+, Cl-
Power supply: 24 V DC via power contacts
Current consumption: typ. 20 mA without encoder
Current consumption power contacts: typ. 20 mA + load
Encoder supply: 24 V DC via power contacts

SSI Encoder Interface: Provides a 1-channel interface for synchronous serial encoders, ensuring precise position acquisition.
Direct Encoder Connection: Supports differential inputs (D+, D-) and differential clock outputs (Cl+, Cl-) for robust signal transmission.
Integrated Encoder Supply: Supplies encoders directly with 24 V DC via power contacts, simplifying wiring.
Compact Bus Terminal Design: Operates with typical current consumption of just 20 mA (excluding load) and integrates seamlessly into Beckhoff’s modular system.

The Beckhoff KL5001 is a 1-channel encoder interface Bus Terminal designed for direct connection of encoders with an SSI (Synchronous Serial Interface). It enables high-precision position and motion feedback for automation systems, making it an essential component in applications requiring accurate and reliable measurement.

The terminal is specifically engineered to connect to SSI-compatible encoders, which transmit position data synchronously with a controller-provided clock signal. The KL5001 features binary inputs (D+, D-) for receiving encoder data and binary outputs (Cl+, Cl-) for providing the differential clock signal. This direct connection design ensures robust and interference-resistant communication, even over longer cable lengths in industrial environments.

The KL5001 provides the encoder with its operating power directly via the 24 V DC power contacts, eliminating the need for an external power source. This integrated encoder supply reduces wiring complexity and ensures stable operation of the connected sensor. With a typical current consumption of 20 mA for the terminal itself (plus the encoder’s load), the module is efficient and well-suited for compact control cabinets.

As part of Beckhoff’s Bus Terminal system, the KL5001 communicates seamlessly with the control bus via the K-bus. This modular design allows the KL5001 to be combined with digital, analog, and specialty I/O terminals to create tailored solutions for specific automation tasks. Integration with Beckhoff’s TwinCAT automation software provides straightforward configuration, diagnostics, and monitoring, enabling engineers to easily visualise encoder status and troubleshoot any issues.

The KL5001 excels in applications where precise position data is critical. Typical use cases include machine tools, robotics, material handling systems, and packaging machinery, where accurate feedback is required for motion control, synchronisation, and closed-loop regulation. The SSI interface ensures high accuracy and deterministic data transfer, supporting demanding automation processes.

Compact and efficient, the KL5001 has a housing width optimised for space-saving installation, making it practical for dense I/O setups. The module’s robust design and adherence to industrial standards guarantee long-term reliability in harsh operating conditions, ensuring stable system performance over extended service life.

In summary, the Beckhoff KL5001 is a reliable and compact 1-channel SSI encoder interface terminal. With its differential input/output design, integrated 24 V DC encoder supply, low power consumption, and seamless Bus Terminal integration, it provides a flexible and precise solution for acquiring position data in automation systems. For engineers seeking dependable encoder connectivity in modular architectures, the KL5001 offers a proven and efficient choice.