Product Description

I. Official Standard Core Parameters

1. Basic Specifications

Model: DO2401 16-channel 24VDC Triple Redundant Digital Output Module

Material Number: 7400209-030

Channel Quantity: 16 channels, point-to-point isolation (optical isolation)

Output Type: Solid-state output (source type / sink type programmable)

Rated Voltage: 24VDC, operating range 15–30VDC

Current per Channel: Rated 2A, maximum 3A (single channel)

Total Module Current: Maximum 8A

Conduction Voltage Drop: ≤ 0.8V (@2A)

Response Time: ≤ 1ms (on→off / off→on)

System Architecture: TMR Triple Redundancy, three independent drives, three-out-of-two voting

Safety Level: IEC61508, TÜV Certification SIL3

Insulation Voltage Rating: Field↔Backplane 1500VAC, complete isolation between channels

Fault Diagnosis: Open circuit / short circuit / overload / overvoltage diagnosis, readback verification, FVD mandatory value diagnosis

Protection Configuration: Channel current limiting, surge suppression, reverse polarity protection, overload self-recovery

Hot Swap: Supports online replacement, no system disturbance

Redundancy Capability: Supports dual DO2401 redundancy, automatic master-slave switching

Power Supply Method: Backplane 24VDC (+/-10%)

Overall Power Consumption: Approximately 6W

Operating Temperature: -40℃ to + 70℃

Storage Temperature: -55℃ to + 85℃

Certifications: CE, UL, CSA, ATEX/IECEx, TÜV SIL3

Installation Method: Tricon Host Frame / Expansion Frame I/O Slot

Matching Terminal Board: 9662-210 16-channel Isolated Output Terminal Board

Dimensions: 170×40×200mm

Product Weight: Approximately 1.4kg

2. Panel Indicator Light Meanings

PWR (Green): Module power supply is normal

OK (Green): TMR voting is normal, module operation is normal

FAULT (Red): Module / Channel / Diagnostic Fault

CH01–CH16 (Yellow): Channel output status / Fault indication

3. Main Product Features

Drive Equipment: Electromagnetic valves, relays, contactors, indicator lights, valve actuators, alarm horns

Load Type: 24VDC Inductive / Resistive Load, compatible with NPN/PNP Load

Data Interaction: TriBus Backplane High-Speed Communication, Triple Redundant Voting Output

Configuration Software: TriStation, configurable fault safety state, output delay, alarm threshold

II. Typical Application Scenarios

ESD Emergency Stop: Emergency Cut-off Valve, Blow-off Valve, Interlock Relay Drive

BMS Combustion Management: Ignition Transformer, Fuel Valve, Blow-off Valve Control

Unit Control: Compressor / Steam Turbine Anti-Surge Valve, Electromagnetic Valve, Interlock Actuator

Process Interlock: Safety Cut-off Valve, Drain Valve, Alarm Indicator Light, On-site Sound and Light Alarm

III. Differentiation of Similar Output Modules on the Same Platform

DO2401: 16-channel 24VDC, point-to-point isolation, each channel 2A, SIL3, General-purpose Safety Output

DO6603: 32-channel 24VDC, common ground type, each channel 0.5A, SIL3, High-density Low-cost

DO2302: 16-channel 120/230VAC, SIL3, High-voltage AC Actuator Specialized