Description

The BECKHOFF KM2004-0002 is a high-density, 32-channel digital output Bus Terminal module designed for space-sensitive industrial automation applications. Operating at 24 V DC, this compact module transmits electrically isolated binary control signals directly from the K-bus to process-level actuators. Its high channel density enables efficient space utilization within standard control cabinets.

This specific variant, the BECKHOFF KM2004-0002, features a pluggable wiring level optimized for 1-wire connection technology. It is equipped with integrated diagnostic LEDs that provide direct status indication for each of the 32 output channels, simplifying local troubleshooting and commissioning.

Designed for integration within standard Bus Terminal systems, the module combines high performance with physical compactness. It mounts securely alongside standard K-bus terminals, allowing flexible and scalable system expansion.

Features

• 32 digital output channels arranged in a high-density, compact form factor.
• Pluggable 1-wire connection design for simplified installation and quick wiring replacement.
• Integrated diagnostic status LEDs for individual channel activity and quick visual troubleshooting.
• Short-circuit proof outputs with built-in reverse voltage protection.
• 500 V electrical isolation between the internal K-bus and the field-side potential.
• Broad load compatibility, supporting ohmic, inductive, and lamp loads.

Applications

• Control of ohmic, inductive, and lamp loads in process-level machinery.
• High-density digital signal control in distributed I/O systems.
• Compact machine design and assembly lines with limited physical control cabinet space.
• Standard automation architectures utilizing the BECKHOFF K-bus platform.

Ordering Information

Technical Specifications

General

Electrical Data

Connection and Mechanical

Environmental

Connections / Interfaces

Installation Guidelines

1. Ensure that the BECKHOFF KM2004-0002 is compatible with your current K-bus coupler or controller model.
2. Completely de-energize the electrical cabinet and all field supplies before starting installation.
3. Align the module with the 35 mm DIN rail (conforming to EN 60715) and press until the locking mechanism engages securely.
4. Join the unit to adjacent Bus Terminals using the double slot-and-key connection on the sides of the terminal housing.
5. Strip your connection wires (solid or stranded) to the specified 8 mm length.
6. Insert the wires into the pluggable 1-wire terminal blocks according to your wiring schematic, then insert the pluggable blocks into the module housing.
7. Reapply system power and check the integrated diagnostic LEDs to verify operational state and correct polarity.

Replacement Recommendations

When replacing a faulty terminal block, power down the system completely. Carefully label and remove the pluggable 1-wire connectors from the front of the unit without disturbing the field wiring. Release the locking tab from the DIN rail and slide the module out of the slot-and-key configuration. Install the replacement BECKHOFF KM2004-0002, slide it to couple with adjacent terminals, reconnect the pluggable terminals, and restore power.

Compliance and Certifications