Description
Product Overview
The TRICONEX DO3626X is a Tricon CX Triple Modular Redundant (TMR) Digital Output Module designed for safety instrumented systems requiring dependable discrete output control. The module receives voted output commands from the Tricon safety controller processors and converts them into field-level switching signals for actuators, shutdown devices, alarms, and other critical equipment. The TRICONEX DO3626X provides 32 commoned digital output points and is designed specifically for installation in Tricon CX I/O expansion chassis.
Within a safety control architecture, the TRICONEX DO3626X operates as the final control element interface between the safety logic solver and field equipment. The module uses TMR output processing, allowing the controller to compare multiple processor commands before generating the final field output state. Each output channel includes diagnostic monitoring functions that can detect abnormal conditions such as output mismatch, field wiring problems, and load-related faults when supervision is configured. The module supports energize-to-trip and de-energize-to-trip applications, making it suitable for emergency shutdown systems, burner management systems, turbine protection, and process interlock applications.
The TRICONEX DO3626X remains an important spare component for facilities operating Tricon CX safety platforms. Replacement projects require careful verification of termination hardware, I/O chassis compatibility, configuration database settings, and application requirements. To be completely transparent, matching the module part number is only the first step; field termination panels and wiring arrangements must also correspond because the 3626X requires compatible termination solutions for proper operation.
Product Introduction (Non-Templated)
A failed safety output channel can prevent a shutdown command from reaching the field device even when the application logic is operating correctly. The TRICONEX DO3626X restores the output interface between the Tricon CX controller and critical plant equipment.
Built for SIS applications, this 32-point 24 VDC digital output module provides TMR voting, configurable point supervision, and diagnostic monitoring for legacy replacement projects and safety system maintenance.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | DO3626X / 3626X |
| Manufacturer | TRICONEX (Schneider Electric) |
| Product Type | TMR Digital Output Module |
| System Platform | Tricon CX SIS |
| Output Points | 32 digital outputs |
| Output Configuration | Commoned outputs |
| Nominal Voltage | 24 VDC |
| Operating Voltage Range | 20.4–28.8 VDC |
| Architecture | Triple Modular Redundancy (TMR) |
| Output Application | Energize-to-trip / De-energize-to-trip |
| Output Diagnostics | Point supervision, short/open circuit detection |
| Maximum Output Current | 1.70 A ±10% per point |
| Surge Current | 5 A for 7 ms |
| Total Module Output Current | 20 A maximum |
| Minimum Load Requirement | 10 mA |
| Output Leakage Current | <4.0 mA |
| Logic Power Consumption | <8 W |
| Isolation | 400 Vrms continuous field-to-system ground |
| Compatible Chassis | Tricon CX I/O Expansion Chassis |
| Compatible Termination | 9662X-610 / 9671X-610 series ETP |
| Condition | New Surplus, Factory Sealed |
Related Products
- TRICONEX 3625 — Earlier Tricon digital output module with 32-point commoned output configuration. Used in traditional Tricon systems where hardware generation compatibility is confirmed.
- TRICONEX 3624 — 16-point 24 VDC TMR digital output module. Suitable for applications requiring fewer output channels compared with the 3626X.
- TRICONEX 3636R — Relay output module used where galvanic switching through relay contacts is required instead of solid-state output switching.
- TRICONEX 3506X — Tricon CX digital input module. Provides the corresponding input-side interface for safety signals entering the controller system.
- TRICONEX 3722X — Tricon CX analog input module used for process measurement signals such as transmitters and monitoring devices.
- TRICONEX 3512X — Pulse input module designed for frequency and speed measurement applications, often paired with protection systems.
- TRICONEX 9662X-610 — External termination panel compatible with 3626X output modules, providing field wiring connection for output channels.
- TRICONEX 9671X-610 — Nonincendive termination panel option for supervised 24 VDC digital output applications using the 3626X module.
3626X
Frequently Asked Questions (FAQ)
1. Is the TRICONEX compatible with my existing Tricon system?
The is designed specifically for Tricon CX I/O expansion chassis.
Before installation, verify:
- Tricon controller family
- I/O chassis type
- Termination panel model
- Existing configuration database
- Application firmware compatibility
Older Tricon platforms may require different digital output modules even when the function appears similar.
2. Can I hot-swap this?
The Tricon architecture supports online maintenance features, but replacement procedures depend on the installed chassis and application configuration.
Typical steps:
- Confirm module identification and slot assignment
- Verify spare module configuration
- Follow site-approved SIS maintenance procedures
- Install replacement module
- Confirm diagnostic status and output verification
The replacement method should always follow the plant safety management process.
3. Does the support firmware v3.1?
The module itself does not function like a standalone programmable controller.
Firmware compatibility depends on:
- Tricon CX controller software version
- System configuration database
- Module revision
- Engineering workstation tools
Before replacement, compare the existing module revision and system software release.
4. Will I lose my safety logic when replacing the ?
No. The is an output interface module and does not contain the main safety application logic.
After replacement, engineers should verify:
- Module recognition
- Output channel diagnostics
- Termination wiring
- Safety function testing
The controller retains the application logic separately.
5. How can I verify a New Surplus TRICONEX is authentic?
Recommended checks:
- Confirm model marking: / 3626X
- Inspect front label and connector condition
- Verify module revision information
- Review available inspection or test records
Unused inventory condition should still be validated before installation in a safety application.
6. Can the be used for an SIS upgrade project?
Yes, when the existing architecture uses compatible Tricon CX hardware.
Common applications include:
- Emergency shutdown system maintenance
- Burner management system upgrades
- Safety output expansion
- Replacement of failed output modules
The complete I/O architecture should be reviewed before selecting replacement hardware.
7. What should engineers check before commissioning the ?
Key checks include:
- Confirm compatible termination panel
- Verify output channel mapping
- Check controller diagnostics
- Validate field wiring polarity
- Perform functional safety testing
These checks help confirm that the module is correctly integrated into the safety loop.
