Triconex 3603T TMR 120 VDC Digital Output Modules

As a 120 VDC module based on the TMR (Triple Modular Redundancy) architecture in the Tricon system, the 3603T digital output module boasts core advantages in reliability, fault tolerance, compatibility, and safety design.

Ⅰ、High-Reliability Redundancy Architecture

TMR Triple Redundancy Design

It executes output control through three independent channels in parallel. The hardware/software voting mechanism ensures the consistency of input and output data. When a single channel fails, the system can still operate via the other channels, avoiding output interruptions caused by single-point failures.

The output circuit adopts a patented quadruple output architecture (Quad Voter), which verifies output signals through a 2/3 voting mechanism to ensure the accuracy of load driving.

Hot Spare and Online Maintenance Capability

It supports hot-swappable replacement of faulty modules without shutdown or interruption of field wiring, maintaining the continuity of industrial processes.

The hot spare module automatically synchronizes its status after insertion, ensuring no output interruption during switching.

Data Sheet

Triconex 3603T Data Sheet.pdf

Ⅱ、Perfect Diagnostics and Fault Handling

Real-Time Status Monitoring

Panel LED indicators intuitively display the module status:

Pass (green): The module is running normally.

Fault (red): Internal fault, requiring replacement.

Active (yellow): The module is in working status.

Load/Fuse (yellow): Abnormal load or blown fuse, with real-time alarm.

Output Voter Diagnostics (OVD)

Regular OVD tests are performed to detect potential faults by briefly reversing the output drive state. The Loop-back mechanism verifies the health of the output circuit, featuring high fault detection coverage.

OVD can be disabled (only used when process interference occurs), but it needs to be enabled periodically to ensure completeness.

Ⅲ、Electrical Performance and Adaptability

Wide Voltage and Load Support

The operating voltage range is 90–150 VDC (maximum 160 VDC), adapting to various industrial power supply environments.

The single-channel output current is 0.8 A (surge 4 A/10 ms), supporting inductive loads (such as relays and solenoids), with built-in reverse diode protection.

Anti-Interference and Isolation Design

The point isolation voltage is 2500 VDC, effectively isolating external electrical interference.

Twisted-pair wiring is adopted to reduce electromagnetic coupling with high-voltage cables.

Ⅳ、System Integration and Flexibility

Multi-Chassis Compatibility: The 3603T can be installed in the Main Chassis, Expansion Chassis, or Remote Expansion (RXM) Chassis, supporting cascading of up to 15 chassis. A single system can accommodate 118 I/O modules.

The I/O bus address is configurable (Main Chassis fixed at 1, Expansion Chassis 2–15), adapting to complex system architectures.

Modular Design: Mechanical keyed slots prevent misinstallation. The standardized hardware design reduces maintenance costs and facilitates convenient spare parts management.

Electrical Specifications

• Output Current: 0.8 A/point (maximum surge current 4 A/10 ms).
• Voltage Range: Operating voltage 90–150 VDC (maximum 160 VDC).
• Logic Power Consumption: < 10 W.
• Load Leakage Current: 2 mA (maximum).

Functional Features

• TMR Architecture: Executes output control through three independent channels in parallel. Hardware/software voting mechanisms ensure output consistency, and single-channel failures do not affect system operation.
• Hot Spare Capability: Supports hot-swappable replacement of faulty modules without interrupting system operation.
• Diagnostic Functions:
• Pass (green, normal operation), Fault (red, internal fault), Active (yellow, module in working state), Load/Fuse (yellow, abnormal load or blown fuse).
• Status Indicators:
• Output Voter Diagnostics (OVD): Regularly detects potential faults and can be disabled via TriStation (only used in process interference cases, requiring periodic re-enablement).

Installation and Compatibility

• Compatible Chassis: Can be installed in Main Chassis (8110), Expansion Chassis (8111), or Remote Chassis (8112).
• System Limitations: A single system supports up to 118 I/O modules. The 3603T occupies 1 logical slot (2 physical slots when including hot spares).
• Installation Environment:
• Operating temperature: 0–60°C.
• Humidity: 5%–95% (non-condensing).
• Wiring Requirements:
• Power supply must be independent. Dual redundant power inputs are recommended, with each power supply ≥ 240 W.
• Use twisted-pair cables for output wiring, avoiding parallel routing with high-voltage cables.

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