Key Specifications

1. Safety & Certification

• Safety Level: SIL 3 (IEC 61508/61511)
• Hardware Fault Tolerance: HFT=1
• Certifications: TÜV, ATEX, IECEx, cFMus

2. Power Supply

• Input: 2× 110-120V AC (50/60Hz)
• Redundancy: Automatic failover
• Power Consumption: 60W max

3. Processing

• CPU: Dual redundant processors
• Logic Execution: <100ms cycle time
• Memory: 64MB (safety application)

4. Environmental

• Operating Temp: -20°C to +60°C
• Humidity: 5-95% non-condensing
• MTBF: >50 years

System Architecture

1. Redundancy Features

• Dual power inputs (independent sources recommended)
• Dual processors with cross-checking
• Watchdog timer for fault detection

2. I/O Capabilities

• Supports up to 16 ProSafe-RS I/O modules
• Typical configurations:
  • Digital Input: SDV161
  • Analog Input: SAI143
  • Digital Output: SDV551

3. Communication

• Vnet/IP: 1Gbps for CENTUM VP integration
• RS-485: For legacy device connection
• Diagnostic Port: Engineering access

Ordering Information

Base Unit

• SSC50D-S1-S2111: Main controller with dual 110-120V AC PSUs

Related Components

• SBT01: Baseplate unit
• SCB50: Backplane connector
• PWR-110AC: Replacement power module

Installation Requirements

1. Power Considerations

• Use independent power circuits for each PSU
• Recommended UPS backup
• Proper grounding (<10Ω)

2. Environmental

• Install in controlled environment
• Maintain clearance for ventilation
• DIN rail mounting (35mm)

3. Safety Precautions

• Follow NEC/CEC wiring standards
• Implement proper segregation (safety/non-safety signals)
• Use shielded cables for I/O

Maintenance Features

1. Diagnostics

• Continuous hardware self-testing
• Online monitoring via ProSafe-RS Engineer
• Detailed event logging

2. Field Service

• Hot-swappable modules
• Online firmware updates
• LED status indicators (power, CPU, comms)

Typical Applications

• Emergency Shutdown Systems (ESD)
• Fire & Gas Systems (FGS)
• Burner Management Systems (BMS)
• Turbomachinery Control
• High Integrity Pressure Protection (HIPPS)

SKU: YOKO-SSC50DS1S2111