Schneider Electric TWDLCDA16DRF Twido Compact Base Controller — 24 VDC Supply, 9 Digital Inputs (24 VDC), 7 Relay Outputs - Compact PLC

Product overview The Schneider Electric TWDLCDA16DRF is a Twido-series compact base controller designed for small machine control, OEM panels and compact automation islands. It incorporates an integrated 24 VDC power supply, nine digital inputs rated for 24 VDC and seven galvanically isolated relay outputs, delivering a space-efficient, expandable control solution for discrete automation tasks.

Key specifications

• Manufacturer: Schneider Electric (Twido series)
• Model: TWDLCDA16DRF
• Power supply: Integrated 24 VDC supply (device powered from 24 VDC source)
• Digital inputs: 9 inputs, nominal 24 VDC (compatible with standard industrial 24 VDC sensors and switches)
• Outputs: 7 relay outputs (isolated relay contacts — verify contact voltage/current ratings in Schneider Electric datasheet)
• Expandability: Supports Twido expansion modules to increase I/O counts as required
• Form factor: Compact base/controller for OEM panels and small control enclosures
• Programming: Compatible with Schneider Electric TwidoSuite (confirm software/firmware compatibility prior to commissioning)

Features and benefits

• Integrated 24 VDC supply simplifies wiring in 24 VDC control systems and reduces need for external control power.
• Mixed onboard I/O (9 inputs / 7 relay outputs) supports typical discrete control requirements without external modules.
• Relay outputs provide galvanic isolation between logic and loads, suitable for switching AC or DC loads within relay ratings.
• Compact footprint ideal for space-constrained enclosures in packaging, conveyors, and OEM machines.
• Expandable architecture allows incremental growth using Twido expansion modules, minimizing initial hardware investment.
• TwidoSuite compatibility facilitates programming, diagnostics and maintenance.

Typical applications

• Small machine sequencing, packaging equipment and conveyor segments
• OEM control panels and compact automation islands
• Retrofit projects replacing legacy compact PLCs
• Discrete control tasks requiring isolated outputs and modest I/O counts

Installation and commissioning notes

• Supply the controller with nominal 24 VDC per Schneider Electric installation instructions; observe correct polarity and ensure sufficient current capacity for the controller and attached I/O.
• Verify relay contact voltage and current ratings in the official Schneider Electric datasheet before connecting loads; apply recommended suppression for inductive loads.
• Use TwidoSuite for program creation, upload/download and device diagnostics; confirm firmware/module compatibility prior to commissioning.
• Follow Schneider Electric wiring guidelines and local electrical codes for grounding, mounting and safe installation.