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The Triconex 3626 is a digital output module designed for high-reliability safety systems within the Triconex Tricon platform. Below is a detailed technical breakdown:
Triconex 3626 – Key Specifications
1. Module Type & Function
Model: 3626 (part of the 3600 series of I/O modules)
Type: Digital Output (DO) Module
Channels: Typically 16 or 32 channels (depends on variant)
Output Type: Form-C relay contacts (failsafe design)
Isolation: Channel-to-channel and system isolation for fault containment
2. Key Features
Triple Modular Redundancy (TMR): Three independent processors vote on outputs
Failsafe Design: De-energized state on fault detection
Hot-Swappable: Field replaceable without system shutdown
Diagnostics: Continuous self-testing with fault reporting
Certifications: IEC 61508 SIL 3, FM, CSA, ATEX (for hazardous areas)
3. Electrical Specifications
Contact Rating: Typically 5A @ 30VDC or 250VAC
Response Time: <10ms for state changes
Power Consumption: Varies by load (typically 5W per channel)
4. Compatibility
Works With: Tricon v9/v10/MX systems
Chassis Compatibility: 8/11/15-slot racks
Requires: Appropriate termination units (e.g., 9721/9722)
Typical Applications
Emergency Shutdown (ESD) valve control
Fire & Gas system actuators
Turbine overspeed protection
Critical motor control
Troubleshooting Guide
Common Fault Indicators
LED State Meaning Action
Green ON Normal operation -
Red Flashing Channel fault Check field wiring
Red Solid Module fault Replace module
Field Issues
Outputs Not Switching
Verify load compatibility
Check fuse/breaker status
Test with known good load
Intermittent Operation
Inspect termination connections
Check for loose backplane contacts
Maintenance Best Practices
Annual Testing: Verify all channels under load
Spare Management: Keep 1 spare per 10 modules
Firmware Updates: Coordinate with Triconex support
Ordering Information
Replacement Part: 4000103-3626 (verify exact suffix)
Termination Kit: 9721-010 (if required)
