Description
1. Basic Information
| Item | Content |
|---|---|
| Model | T8231 |
| Series | Trusted T8000 TMR Triple‑Redundant Safety Control System |
| Product Type | 750W AC‑Input Power Pack |
| Safety Certification | System‑level IEC61508 SIL3, TÜV certified |
| Installation | Slot‑mount in T8230 power shelf, hot‑swap supported |
| Manufacturer | ICS‑Triplex (Rockwell Automation) |
2. Hardware Specifications
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Electrical Specifications
‑ AC Input: 90‑264 VAC, 47‑63 Hz wide‑range AC inputRockwell A…
‑ DC Output: 24‑28 VDC, rated power 750 WRockwell A…
‑ Efficiency:78%‑84%; Power factor ≥0.95; Hold‑up time ≥20 msRockwell A…
‑ Max inrush current 50 A; Supports N+1 redundant parallel operation with automatic load sharing.
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Mechanical & Cooling
‑ Dual‑fan forced air cooling; front‑panel LED indicators: Power OK, Fault, Alarm;
‑ Hot‑swap handle for on‑line replacement without system power‑off;
‑ Unit weight 2.7 kg; fits 19‑inch T8230 power shelf; up to three T8231 modules per shelfRockwell A….
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Environmental Conditions
‑ Operating temperature: 0℃ ~ +60℃; Storage temperature:‑40℃ ~ +85℃Rockwell A…
‑ Relative humidity: 10‑95% non‑condensing; IP20 (inside cabinet); built‑in over‑voltage, over‑current, over‑temperature and short‑circuit protection.
3. Key Functions
- SIS System Power Supply: Provides stable 24 VDC power for Trusted T8100 controller chassis, expansion chassis and all TMR modules; acts as core power unit for complete SIS system.
- N+1 Redundancy & Fault Tolerance: Multiple modules run in parallel redundancy. If one power unit fails or is hot‑swapped, remaining units take full load without system disturbance or shutdown.
- Comprehensive Hardware Self‑diagnosis: Real‑time detection for input under‑/over‑voltage, output abnormality, over‑temperature and fan fault. Front‑panel alarm indication; fault messages uploaded to Trusted system for software monitoring.
- Hot‑swap Maintenance: Faulty power module can be replaced online without system power‑off, reducing SIS shutdown risk during maintenance.
- Protective Mechanism: Automatic protection against output short‑circuit, over‑current, over‑voltage and over‑temperature. Fault latch‑off; auto‑recovery after fault removal.
4. Typical Applications
‑ Safety instrumented systems for offshore oil‑gas platforms and power plants with T8230 power‑shelf redundant power configuration
‑ Large‑scale Trusted projects adopting N+1 power redundancy for uninterrupted safety‑system operation
5. Important Notes
- T8231 must be installed in dedicated T8230 power shelf; cannot be inserted directly into T8100 controller chassis slots.
- Redundant configuration (2 or 3 units of T8231) is recommended. Single‑power operation is not allowed; single‑power failure will cause total SIS power loss.
- Install T8235 filler blind plates for vacant slots on power shelf to maintain airflow, EMC shielding and valid SIL3 certification.
- Output supplies chassis backplane only. Not for direct field‑device power feeding. Field instruments shall be powered by separate field power supplies.
- No firmware; no firmware‑matching required.
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