TWDLCDA24DRF – Compact Base Controller

Twido series · 14 DC inputs · 10 relay outputs · 24 VDC supply · Expandable

Short Description: TWDLCDA24DRF, Twido compact controller with 14 digital inputs and 10 relay outputs. 24V DC, Modbus, PID, expandable to 120 I/O. Reliable for small to mid-size automation.

Product Description

• TWDLCDA24DRF is a compact base controller from Schneider Electric’s Twido range.
• It includes 14 discrete inputs (24 VDC) and 10 relay outputs.
• Supply voltage: 24 V DC. Integrated power supply.
• Supports up to 4 expansion modules – max I/O: 120 (spring terminal) or 152 (HE-10).
• Built-in Modbus serial link (RS485) for master/slave communication.
• PID and event processing functions are embedded.

Key Technical Features

• Discrete inputs: 14 (sink/source), 24 V DC, 7–11 mA per channel.
• Relay outputs: 10, 2 A at 240 V AC / 30 V DC (resistive/inductive).
• Program memory: 3000 instructions, 1 ms per 1K instructions.
• Counters: 1 high-speed (20 kHz, 32-bit) and 3 at 5 kHz (16-bit).
• Analogue adjustment: 2 trim pots (0–511 and 0–1023).
• Protection: internal fuse, insulation 1500 Vrms (I/O to logic).
• Real-time clock: optional via cartridge (not included).

Technical Specifications

Installation & Commissioning

• Mount on DIN rail (35 mm) or panel using fixing kit.
• Wiring: non-removable screw terminals for I/O.
• Configuration via TwidoSuite software – auto-detection.
• Supports memory cartridge or real-time clock cartridge.
• LED indicators: PWR, RUN, I/O status, ERR, STAT.

Compatibility & Suitable Devices

• Works with Twido expansion I/O modules (discrete, analog, special).
• Compatible with Modicon Quantum via communication adapters.
• Ideal for small conveyors, packaging machines, HVAC, and pumping stations.
• Suits OEM machinery with up to 120 I/O points.

Oiltech Controls’s Insight

• This TWDLCDA24DRF is a workhorse for small to mid-size control tasks.
• Its relay outputs handle inductive loads up to 2 A – suitable for contactors and valves.
• The built-in PID and Modbus reduce external hardware.
• We recommend using a memory cartridge for program backup.
• For harsh environments, add a protective cover (IP20 rated).

Frequently Asked Questions (Expert Selection)

• Q: Can I use this controller with 120 V AC inputs?

  A: No. Inputs are 24 V DC only. Use external AC/DC converters.

• Q: What is the maximum expansion distance?

  A: Total cable length between base and last expansion module should be < 3 m.

• Q: How do I retain program during power loss?

  A: Internal RAM with lithium battery keeps data for 30 days. Use cartridge for permanent storage.

• Q: Which communication protocol is supported?

  A: Modbus RTU/ASCII over RS485. Also supports character mode.

• Q: Can I replace relays individually?

  A: No. Relays are PCB-mounted. The entire unit must be replaced if relays fail.

Why Buy From Oiltech Controls?

• Over 15 years in industrial automation spares.
• Worldwide shipping – fast and trackable.
• All units are functionally tested (refurbished/surplus).
• 12-month warranty against defects.
• Technical verification performed before shipment.
• Specialist support for obsolete systems.

Shipping & Warranty

• Dispatch: within 24–28 hours after order confirmation.
• Carriers: FedEx, UPS, DHL – express delivery worldwide.
• Warranty: 12 months (manufacturing defects).
• Packaging: anti-static bag with protective cushioning.