Product details

TWDLMDA40DTK – Twido Modular Base Controller

Twido series, 40 discrete I/O, 24 V DC supply. Compact, powerful, and ready for small to mid-size automation tasks.

Core identification

Brand: Schneider Electric (Twido)
Model: TWDLMDA40DTK
Type: modular base controller
Discrete I/O: 40 (24 inputs + 16 transistor outputs)

Power supply

Rated voltage: 24 V DC (limits 20.4…26.4 V)
Max consumption: ≤ 19 W (base + 4 expansion modules)
Inrush current: ≤ 50 A (supply) / ≤ 1 A (outputs)
Internal fuse: power protection built‑in

Discrete inputs (24 points)

Logic: sink or source (selectable)
Voltage: 24 V DC
Current per input: 5 mA (I0.0‑I0.1, I0.6‑I0.7) / 7 mA (I0.2‑I0.5, I0.8‑I0.23)
Impedance: 5700 Ω (I0.0‑I0.1, I0.6‑I0.7) / 4700 Ω (others)
Filter time: 35‑45 µs (ON) / 150 µs (OFF) – varies by channel group

Transistor outputs (16 points, source)

Voltage: 24 V DC (limits 20.4…28.8 V)
Current per channel: 0.36 A
Current per common: 1 A
Residual voltage (ON): ≤ 1 V
Leakage current (OFF): 0.1 mA
Overvoltage protection: 39 V clamp
Tungsten load: 8 W
Response time: 5 µs (Q0.0‑Q0.1) / 300 µs (Q0.2‑Q0.15)

Analogue & counting functions

Analogue input: 1 channel, 0…10 V, 9‑bit resolution (100 kΩ impedance)
Counting inputs: 2 × 5000 Hz (16‑bit) + 2 × 20000 Hz (32‑bit)
Positioning: 2 channels PWM/PLS up to 7 kHz
Adjustment: 1 analogue trimmer (0…1023 steps)

Memory & processing

Program memory: 3000 instructions (6000 with 64K cartridge)
Execution speed: 1 ms per 1000 instructions
System overhead: 0.5 ms
Internal data: 3000 words, 256 bits, 128 timers, 128 counters
Battery backup: Lithium (30 days autonomy, 15 h recharge, 10 yr life)

Expansion & connectivity

Expansion slots: 7 modules max (2 free for cartridge/RTC)
Max I/O count: 264 (HE‑10) / 208 (spring) / 152 (screw)
Serial link: Mini DIN (RS485), Modbus RTU/ASCII, up to 38.4 kbps
I/O connection: HE‑10 connector

Environmental & mechanical

Temperature: 0…55 °C (operation) / –25…70 °C (storage)
Humidity: 30…95 % (non‑condensing)
Protection: IP20
Altitude: 0…2000 m (operation) / 0…3000 m (storage)
Vibration (DIN rail): 0.075 mm @ 10‑57 Hz / 1 gn @ 57‑150 Hz
Shock: 15 gn for 11 ms
Weight: 0.18 kg

Insulation & protection

Channel‑to‑logic isolation: 1500 Vrms (1 min)
Supply‑to‑earth: >10 MΩ @ 500 V
I/O‑to‑earth: >10 MΩ @ 500 V
Dielectric strength: 500 V (supply) / 1500 V (I/O)
Microbreak immunity: 10 ms

Expert Review – Manager’s Insight

“The Twido TWDLMDA40DTK is a workhorse for small machines.” It offers a perfect balance of I/O, counting, and analogue features in a compact footprint. The fast response on Q0.0‑Q0.1 (5 µs) makes it suitable for high‑speed positioning. With expansion up to 264 I/O, it grows with your needs. Reliable, easy to program, and backed by Schneider Electric’s quality.

Suitable devices & applications

PLC systems: Twido standalone or with expansion modules
Packaging machinery: labelling, filling, capping
Material handling: conveyors, sorters, lifts
HVAC: air handling units, chiller controls
Water treatment: pump sequencing, valve control
Specialty machines: printing, textile, woodworking

Comparison with similar models

TWDLMDA20DTK: 20 I/O, smaller footprint, fewer expansions
TWDLCAE40DTK: similar I/O but with embedded Ethernet
Modicon M221: higher processing power, more memory
For more options, visit Powergear X.

Installation & maintenance

Mounting: snap on 35 mm DIN rail (use fixing kit for vibrations).
Wiring: use HE‑10 cables or terminal blocks (choose spring/screw type).
Programming: TwidoSuite software (free download).
Battery: rechargeable – keep powered for 15 h to fully charge.
Maintenance: periodic dust cleaning; no calibration needed.

Certifications & compliance

UL – recognized component
CSA – certified for Canada
CE – meets EU standards

Package & delivery

Included: 1 controller, 1 HE‑10 connector (unwired), quick start guide.
Warranty: 12 months from shipment.
Shipping: dispatched within 12–24 hours.
Carriers: FedEx, UPS, DHL (express, tracked).

FAQ – Frequently asked questions

Can I use this controller with 12 V sensors?
No. Inputs require 24 V DC (20.4‑26.4 V). Use a level converter or external relay.
How do I expand the I/O?
Add up to 7 expansion modules via the right‑side bus. The system auto‑detects them.
What is the difference between Q0.0‑Q0.1 and Q0.2‑Q0.15?
The first two outputs are high‑speed (5 µs response). Use them for positioning or PWM.
Is the programming cable included?
No. You need a mini‑DIN to USB/RS485 adapter (sold separately).
Can I run PID loops?
Yes. The built‑in PID function supports up to 8 loops with auto‑tuning.

Selection guide & practical tips

For high‑speed counting: use the 20 kHz inputs (I0.0‑I0.1) with Q0.0‑Q0.1 for fast response.
For analogue needs: the single 0‑10 V input is enough for pressure or temperature.
Memory expansion: if your program exceeds 3000 instructions, buy the 64K cartridge.
Battery care: keep the controller powered for 15 hours to fully charge the battery.
Noise immunity: use shielded cables for analogue and high‑speed signals.

Questions? Email sales@powergearx.com
or call +86 18030005825 (WhatsApp).

View More View Less