Description
Product Overview
The Woodward 8290-185 is a high-performance safety-rated controller designed for mission-critical protection systems in power generation, oil & gas, and industrial applications. As part of Woodward’s 8000 series of safety solutions, this SIL 3 certified module provides redundant processing for emergency shutdown (ESD), turbine overspeed protection, and compressor surge control. The 8290-185 features quad-redundant architecture with 1oo4 voting logic, achieving <5ms response time for safety-critical functions. Its ruggedized stainless steel enclosure (IP69K) withstands extreme conditions (-40°C to +90°C, 10G vibration, 50G shock), making it suitable for offshore platforms, arctic installations, and other demanding environments. With TÜV-certified safety logic and IEC 61508 compliance, the Woodward 8290-185 delivers 99.9999% reliability for the most critical protection applications.
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 8290-185 |
| Manufacturer | Woodward |
| Product Type | Safety PLC |
| Safety Rating | SIL 3 (IEC 61508), PLe (ISO 13849) |
| Architecture | Quad-redundant 1oo4 |
| Processor | 4× 32-bit lockstep cores |
| Response Time | <5ms (safety functions) |
| I/O Capacity | 256 safety points (expandable) |
| Communication | 2× TSN Ethernet, 2× PROFIsafe |
| Diagnostic Coverage | >99% (hardware/software) |
| Power Supply | 24V DC (18-36V) redundant |
| Operating Temp. | -40°C to +90°C |
| Vibration Resistance | 10G (5-2000Hz) |
| Protection Rating | IP69K (NEMA 6P) |
| Certifications | TÜV, DNV-GL, ATEX Zone 1 |
Woodward 8290-185
Main Features and Advantages
Ultra-reliable safety architecture: The Woodward 8290-185 implements quad-redundant processing with diverse-coded channels and continuous self-testing, detecting >99.9% of dangerous failures. Its 1oo4 voting logic ensures no single point of failure can prevent safe shutdown.
Deterministic performance: Hardware-based 5ms safety scan time is guaranteed through FPGA-accelerated logic solvers. The module’s ≤100ns synchronization accuracy enables precise interlocking across distributed safety systems.
Cybersecurity hardened: Meets IEC 62443-3-3 SL2 requirements with secure boot, runtime integrity checks, and HSM-protected firmware. The 8290-185 maintains air-gapped safety networks while allowing secure data exchange via unidirectional gateways.
Advanced diagnostics: Continuous channel divergence monitoring and component stress analysis predict failures before they occur. The system generates TÜV-compliant proof test reports with automatic test interval calculations.
Woodward 8290-185
Application Field
The Woodward 8290-185 protects critical assets in:
Power Plants: Turbine overspeed (>110% trip), flame detection
Offshore Platforms: ESD for wellheads and compressors
Pipeline Systems: High-integrity pressure protection (HIPPS)
Chemical Plants: Reactor runaway prevention
Marine Systems: Propulsion emergency stops
Related Products
8290-186: Aerospace version with DO-254 certification
8290-184: SIL 2 version for less critical applications
ProAct SIS: Safety instrumented system integration
SPS-9000: Safety-rated power supply
HIM-8000: Hazardous area interface module
Installation and Maintenance
Pre-installation preparation: Implement physical separation (>300mm) between safety and standard I/O. Configure independent grounding (<0.1Ω) for safety circuits. Verify diverse routing for redundant field wiring.
Maintenance recommendations: Perform annual partial stroke tests on final elements. Validate safety logic via Woodward’s SafeCheck™ software every 3 years. Replace electrolytic capacitors after 10 years of service. The 8290-185 supports online module replacement in redundant configurations.
Product Guarantee
Woodward’s 15-year safety lifecycle commitment includes:
10-year warranty with guaranteed spare parts
TÜV-certified firmware updates
NIST-traceable safety validation
24/7 emergency response (2-hour escalation)
Lifetime cybersecurity patches
Each unit undergoes:
10,000-hour accelerated life testing
Fault injection testing to validate diagnostics
EMC immunity testing per IEC 61000-6-2
