BECKHOFF KS5051 Bus Terminal

Description

Direct connection of SSI encoders to the K-bus system is facilitated by the BECKHOFF KS5051 1-channel SSI encoder interface terminal. This module provides a dedicated interface for absolute positioning systems, receiving differential RS422 signals and supplying them to the higher-level controller via the process image. The KS5051 features a pluggable wiring level, making it highly serviceable for rapid module replacement without disconnecting field wiring.

Operating as a bidirectional unit, this bus terminal supports data transmission rates up to 1 MHz and accommodates variable serial input widths of up to 24 bits. It integrates 500 V electrical isolation between the internal K-bus and the field potential to protect sensitive processing electronics from electrical surges in harsh environments.

Features

• 1-channel SSI encoder interface with bidirectional communication.
• Pluggable connection level for fast, tool-free terminal replacement.
• Supports differential signal transmission based on the RS422 standard.
• 500 V electrical isolation between K-bus and field potential.
• Compact 12 mm housing width designed for DIN rail mounting.

Applications

• Industrial motion control and positioning feedback systems.
• CNC machining centers and robotic manufacturing cells.
• Heavy machinery, materials handling, and packaging lines.

Technical Specifications

Installation Guidelines

• Mount the module onto a standard 35 mm DIN rail (conforming to EN 60715) until the lock snaps firmly in place.
• Ensure all electrical contacts are clean and dry before side-by-side mounting using the integrated double slot and key connection.
• Always supply the 5 V DC power via the power contacts from an upstream power supply terminal, such as the KL9505.
• Use shielded twisted-pair cables for the RS422 encoder connections to guarantee signal integrity in environments with high electromagnetic interference.

Compliance and Certifications

• CE, UL
• ATEX (Ex marking: II 3 G Ex nA IIC T4 Gc)