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TWDDDI32DK

The TWDDDI32DK is a high-density digital input module from Schneider Electric's Modicon M258/M251 Logic Controller series, specifically designed for the TM3 modular I/O system. It represents a cost-optimized, high-channel-count solution for gathering discrete sensor signals.

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Specifications Parameter Category Specification General Information Manufacturer / Series Schneider Electric / Modicon TM3 (for M258/M251) Model / Part Number TWDDDI32DK Product Type TM3 32-Point Digital Input Module (24V DC Sinking) Digital Input Specifications Number of Inputs 32 Input Type Sinking (NPN common) Rated Input Voltage 24 VDC Operating Voltage Range 19.2 to 30 VDC Logic Level "1" (ON) ≤ 5 VDC (current sinking to 0V) Logic Level "0" (OFF) ≥ 11 VDC (open circuit or high impedance) Input Current Typically 5 mA per point @ 24 VDC Input Impedance Approximately 4.7 kΩ Input Delay (Filter) Typically 3 ms (standard). May be configurable in groups via software to 1ms, 3ms, 10ms, or 20ms for noise immunity. Connection Removable screw terminal block (front access). Wiring & Groups Inputs are typically grouped (e.g., 16 points per common). The common terminal for each group must be connected to +24V DC for proper sinking operation. Electrical & Mechanical Backplane Current (5V) ~ 100 mA (typical, consumed from TM3 bus) Field Power Supply Required externally for sensor supply (24V DC). Isolation Optical isolation between field side and system bus. Isolation by groups between field commons. Wire Size 0.2 mm² to 1.5 mm² (AWG 24 to 16) Module Width 24 mm (occupies 3 TM3 base unit positions) Environmental Operating Temperature 0°C to +55°C (32°F to 131°F) Storage Temperature -25°C to +70°C Relative Humidity 10% to 95% (non-condensing) Pollution Degree 2 Vibration/Shock Compliant with IEC 60068-2-6 / 2-27 for industrial use. Certifications & Software Standards & Approvals CE, UL, cULus, RCM, KC (market dependent).