The Schneider Electric TM2DDO8TT is an 8-channel, high-speed transistor output module from the Modicon TM2 distributed I/O system. This module features sourcing (PNP) transistor outputs with advanced diagnostics and high switching frequency (indicated by the "TT" suffix). It is designed for fast and reliable control of 24V DC loads such as solenoid valves, indicators, and small relays in automation applications.
Parameters
Parameter Category Details
Model TM2DDO8TT
Series Modicon TM2
Product Type 8-Channel High-Speed Digital Transistor Output Module (Sourcing)
Number of Channels 8
Output Type Sourcing (PNP) – 24V DC positive switching
Rated Load Voltage 24V DC
Nominal Output Current 0.5 A per channel
Maximum Total Current 4 A (shared, derated)
Peak Current 2 A per channel for 100 ms
Switching Frequency Up to 1 kHz
Protection Short-circuit and overload protection per channel
Diagnostics (TT Feature) Enhanced per-channel fault reporting (e.g., overload, short-circuit, open load detection)
Status Indicators Module status LED, per-channel status LED
Power Supply 24V DC via TM2 base unit
Mounting TM2 base unit on DIN rail (35mm)
Operating Temperature 0°C to +55°C
Typical Applications High-speed control of solenoid valves, pneumatic valves, indicator lamps, and small relays in packaging, material handling, and assembly machines