Beckhoff KS4012 Bus Terminal

Description

Process control and automation networks requiring precise analog current loop signals utilize the Beckhoff KS4012 analog output terminal to interface with industrial actuators. This 2-channel analog output module delivers accurate signals in the range of 0 to 20 mA with a high-accuracy conversion resolution of 12 bits. The KS-series configuration features a pluggable wiring level, enabling rapid block installation, simplified maintenance, and field-pre-wiring without disconnecting individual signal lines. The module processes electrical analog current signals dynamically by converting digital values from the K-bus backplane with galvanic isolation, ensuring signal integrity in electrically noisy industrial environments.

Features

• Two-channel analog outputs configured for standard 0 to 20 mA current loops.
• High-resolution 12-bit digital-to-analog signal conversion.
• Pluggable connection level (KS series design) for tool-free terminal replacement.
• Galvanic isolation of 500 V between the K-bus and the analog process loop.
• Compact 12 mm DIN rail housing to minimize control cabinet footprint.
• Automatic data transfer across the K-bus with no address configuration required.

Applications

• Proportional control valves and pneumatic actuators.
• Speed references for variable frequency drives (VFD) and motor controllers.
• Current-loop signal transmission in municipal water and wastewater systems.
• Process heating loops and environmental chamber control.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mount the module onto a standard 35 mm DIN rail conforming to EN 60715. Use the integrated double slot and key lock for alignment with adjacent terminals.
• Ensure the pluggable wiring level is fully clicked into position before applying field power.
• Observe standard grounding practices for shielded current loop cabling to minimize high-frequency EMI.
• Ensure a suitable IP54 minimum enclosure rating when installing within ATEX-certified Zone 2 hazardous areas.

Compliance and Certifications

• CE
• UL
• ATEX: II 3 G Ex nA IIC T4 Gc
• DNVGL