Schneider 140DDO35301 DC Discrete Output Module

The Schneider 140DDO35301 module delivers reliable DC discrete outputs for industrial automation applications. In addition, it supports multiple channel groups, allowing precise control over process devices. This module combines fast response times with robust protection mechanisms, making it suitable for demanding automation environments.

Key Features of the Schneider 140DDO35301

Channel Grouping: Features 4 groups of 8 outputs, providing 32 total outputs for flexible control.
Discrete Output Logic: Uses positive logic (source) to ensure consistent signal behavior.
Voltage Range: Operates at 24V DC with output limits between 19.2 and 30V DC.
Maximum Load Current: Supports up to 16A per module and 4A per group, handling high-demand devices.
Fast Response Times: Switches from 0 to 1 within ≤1 ms and from 1 to 0 within ≤0.1 ms.
Protection: Includes internal fuses per group and surge protection up to 50V for 1 second.
Fault Indication: Provides visual feedback through LEDs and blown fuse signaling for easy diagnostics.
Power Dissipation: Maintains energy efficiency with only 5W dissipation during operation.

Technical Specifications

Feature	Specification
Number of Outputs	32 outputs (4 groups of 8)
Output Logic	Positive logic (source)
Addressing Requirement	2 output words
Nominal Voltage	24V DC
Voltage Limits	19.2–30V DC
Absolute Maximum Output	50V for 1 s decaying pulse
Voltage Drop	0.4V at 0.5A
Maximum Load Current	16A per module, 4A per group
Surge Current	≤2A
Response Time	≤0.1 ms (1→0), ≤1 ms (0→1)
Leakage Current	≤1 mA at 24V
Load Inductance	0.5 / (Current × Switching Frequency) H
Fault Indication	Blown fuse, loss of field power
Associated Fuse Rating	3A per point, 5A per group
Isolation	1780 Vrms DC (channels/bus), 500 Vrms DC (between groups)
Protection Type	Internal output protection by 5A fuse per group
Power Dissipation	5 W
Marking	CE
Local Signalling	32 green LEDs for output status, 1 green LED bus active, 1 red LED fault
Bus Current Requirement	≤330 mA
Module Format	Standard
Weight	0.99 lb (0.45 kg)

Applications and Usage

The Schneider 140DDO35301 excels in controlling multiple field devices simultaneously. Furthermore, its fast response and integrated protection ensure system reliability. Operators can monitor output status in real time thanks to LEDs, which enhance diagnostic efficiency. Its compact design allows straightforward integration into existing control panels, optimizing both space and functionality.