Output Architecture and Control Application
This discrete output module drives actuators and indicators in Schneider Modicon control systems. It provides 16 transistor outputs with 24 VDC at 0.5 A each. The module features short-circuit and overload protection for all channels. LED indicators display the real-time status of every output point. Consequently, this unit suits machine control and factory automation applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Schneider Electric |
| Model Number | TM2DDO16TK |
| Output Channels | 16 discrete outputs |
| Output Type | Transistor (sourcing) |
| Output Voltage | 24 VDC nominal |
| Output Current | 0.5 A per channel |
| Total Output Current | 8 A maximum |
| Output Protection | Short-circuit and overload |
| On-State Voltage Drop | <1 V at 0.5 A |
| Off-State Leakage | <0.1 mA |
| Switching Speed | 1 ms typical |
| Isolation | 1500 VAC (channel-to-bus) |
| Field Supply | External 24 VDC |
| Current Draw (Logic) | 150 mA from 5 VDC bus |
| Power Dissipation | 4.5 W maximum |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | –40°C to +85°C |
| Humidity | 5% to 95% non-condensing |
| Dimensions (H x W x D) | 85 mm x 25 mm x 110 mm |
| Weight | 0.18 kg |
| Termination | Removable screw terminal block |
| Wire Gauge | 16–22 AWG |
| Status Indicators | 16 green LEDs per channel |
Output Driving and Protection Features
The TM2DDO16TK provides 16 sourcing outputs for controlling relays, solenoids, and indicator lamps. Each output delivers 0.5 A continuously without derating. The module includes short-circuit protection that activates immediately upon fault detection. An automatic recovery feature resets the channel after clearing the fault. This protection safeguards both the module and connected field devices.
Field Wiring and Termination Interface
A removable screw terminal block simplifies field wiring and module replacement. Each output channel requires two connections: output signal and return ground. The terminal block includes clear labeling for easy channel identification. Use properly sized wires to handle the output current requirements. This design reduces installation time and maintenance complexity.
Power Architecture and Energy Management
The module draws 150 mA from the 5 VDC logic bus. It requires an external 24 VDC supply for output field power. Total power dissipation reaches 4.5 W under maximum load conditions. Internal capacitors provide filtering for stable output operation. Users should select an appropriate external supply for the application.
Installation and Mounting Instructions
Insert the module into any Modicon I/O slot on the bus rail. Press firmly until it seats fully onto the connector. Secure the module with the retaining clips provided. Wire the terminal block before inserting it into the module. The controller will automatically detect the new module on power-up.
Construction Quality and Environmental Tolerance
The module operates reliably from 0°C to +60°C in industrial settings. It withstands non-condensing humidity from 5% to 95%. The PCB includes conformal coating for moisture and dust protection. This construction ensures long-term dependability in factory environments. The module meets Schneider Electric quality and safety standards.
Diagnostics and Maintenance
Front-panel LEDs provide immediate visual status for every output channel. System software offers diagnostic information for troubleshooting output faults. Replace the module if multiple outputs fail to operate correctly. Periodically inspect terminal connections for tightness and corrosion.
Details
| Weight | 0.18 kg |
|---|---|
| Dimensions | 85 × 25 × 110 mm |



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