Overview
Configured for high-voltage discrete output execution in Tricon safety instrumented systems, the TRICONEX 3603B (3603B TMR Digital Output Module) provides direct physical/electrical control of field devices through redundant output channels.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3603B |
| Brand | TRICONEX |
| Module Type | TMR Digital Output Module |
| Origin | USA |
| Weight | Approx. 2.2 kg |
| Dimensions | Tricon I/O module standard size |
| Operating Temp | 0 to 60 deg C typical system environment |
| Power Consumption | Less than 10 watts |
| Output Type | Digital DC Output |
| Output Architecture | Triple Modular Redundant (TMR) |
| Number of Output Channels | 16 non-commoned outputs |
| Nominal Output Voltage | 120 VDC |
| Output Voltage Range | 99 to 155 VDC |
| Maximum Output Current | 0.8 A per point |
| Surge Current Capability | 4 A for 10 ms |
| Load Leakage Current | 2 mA maximum |
| Minimum Load Requirement | 20 kOhm |
| Point Isolation | 1,000 VDC minimum |
| Field Termination Fuse | 1 A fast-acting fuse per output |
| Diagnostic Update Rate | Every 100 ms plus one scan |
| Diagnostic Glitch Duration | 2 ms maximum |
| Backplane Voltage Drop | Less than 0.5 VDC typical at 250 mA |
| Status Indicators | ON/OFF per point, PASS, FAULT, ACTIVE, LOAD/FUSE |
| Mounting Method | Tricon chassis rack installation |
TMR Safety Control and Fail-Safe Output Execution
The TRICONEX 3603B uses triple modular redundancy (TMR) 2oo3 architecture to execute discrete output commands through three independent processing paths. Therefore, the module can detect output channel faults while maintaining controlled field operation.
The module supports fail-safe state execution by continuously comparing output states and internal diagnostic feedback. Moreover, galvanic isolation between field circuits and system electronics reduces electrical interference during high-voltage DC switching.
The 3603B performs output loopback diagnostics, load monitoring, and fuse condition detection. In addition, individual channel indicators provide direct visibility of output states and fault conditions during system operation.
Frequently Asked Questions
Q: What output architecture does the TRICONEX 3603B use?
A: The 3603B uses a Triple Modular Redundant (TMR) 2oo3 output architecture with 16 non-commoned digital DC output channels.
Q: What field voltage range can the 3603B handle?
A: The module supports a nominal 120 VDC output with an operating voltage range of 99 to 155 VDC.
Q: What diagnostic functions are integrated into the module?
A: The module provides channel monitoring, output loopback diagnostics, LOAD/FUSE fault detection, and PASS, FAULT, and ACTIVE status indication.
Field Installation Guidelines
- Install the 3603B only in compatible Tricon chassis rack positions configured for TMR digital output operation.
- Verify field device voltage ratings before connecting external loads to the 120 VDC output channels.
- Route field wiring separately from high-noise power conductors to reduce electrical interference.
- Maintain correct wiring polarity when connecting DC-powered actuators, relays, and solenoid devices.
- Connect cable shields according to the site grounding standard when shielded field cables are used.
- Confirm termination fuse ratings and field wiring integrity before system commissioning.
- Run Tricon diagnostic checks after installation to verify output channel status and fault reporting functions.
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