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TRICONEX D28799-005 – Redundant Power Supply Interface Module for Tricon Safety Systems
Product Overview
The TRICONEX D28799-005 is a high-reliability redundant power supply interface module engineered for Tricon safety instrumented systems (SIS) requiring uninterrupted power distribution. Designed with triple-modular redundancy (TMR) architecture, it delivers stable 24V DC power to critical control components while maintaining fault tolerance during power fluctuations or component failures. This module addresses the challenge of ensuring power integrity in harsh industrial environments, making it essential for emergency shutdown (ESD), fire and gas, and turbomachinery protection systems in oil, gas, chemical, and power generation industries. Its hot-swappable design and advanced monitoring capabilities minimize downtime while adhering to SIL 3 safety standards (IEC 61508).
Technical Specifications — D28799-005
| Value | |
|---|---|
| Product Model | D28799-005 |
| Manufacturer | TRICONEX |
| Product Type | Redundant Power Supply Interface Module |
| Power | Input: 110/220V AC or 24/48V DC; Output: 24V DC (regulated) |
| Communication / Protocol | Tricon TriBus, redundant serial communication |
| Operating Temperature | -40°C to +70°C (-40°F to 158°F) |
| Mounting | Tricon Standard Rack (DIN Rail compatible), hot-swappable |
| Dimensions (HxWxD) | 166.7 x 247.9 x 62.4 mm (6.56″ x 9.76″ x 2.46″) |
| Weight | 1.2 kg (2.65 lbs) |
| Typical Interfaces | 16 isolated power output channels (2A continuous per channel, 3A peak), redundant power inputs |
| Compliance | SIL 3 (IEC 61508), IEC 61511, TUV AK6, CE, RoHS |
TRICONEX D28799-005
Key Features and Benefits — D28799-005
- Triple-Modular Redundancy (TMR): Three independent power distribution channels with automatic voting logic eliminate single points of failure, ensuring continuous power delivery during component faults.
- Redundant Power Inputs: Dual power source connections with automatic failover provide seamless transition between primary and backup power supplies, preventing system shutdown.
- Hot-Swappable Design: Allows module replacement without system shutdown, reducing maintenance-related downtime in critical applications.
- Advanced Monitoring: Real-time voltage, current, and temperature monitoring with fault detection and isolation capabilities enable predictive maintenance and rapid troubleshooting.
- High Isolation Ratings: 1500V AC/DC isolation between channels and system protects sensitive control components from electrical interference and transients.
Related Models
D28799-006: Enhanced redundant power supply module with increased output capacity (3A continuous per channel) for high-power applications.
D28799-004: Compact 8-channel redundant power supply module for space-constrained control panels.
D28799-007: Redundant power supply module with integrated surge protection for harsh electrical environments.
D28799-008: Redundant power supply module with extended temperature range (-55°C to +85°C) for extreme industrial conditions.
Installation and Maintenance
- Mount the module in a Tricon standard rack or compatible DIN rail system, ensuring proper grounding and ventilation clearance.
- Connect primary and backup power sources to redundant input terminals, following polarity and voltage specifications.
- Utilize built-in LED indicators to verify power status, channel health, and system communication.
- Perform regular diagnostic checks via the Tricon SIS interface to monitor power quality and identify potential issues before they affect operation.
- Replace faulty modules using hot-swappable capability, following manufacturer guidelines to maintain system safety and integrity.
