Description
ICS Triplex T8471
Technical Specifications:
- Output Channels: 32 channels
- Independent Power Groups: 4 groups with 8 outputs per group
- Operational Output Voltage Range: 35 to 150 VDC
- Output Current Rating: 0.5 A per channel, 2 A per power group
- Minimum On-State Load Current: 20 mA
- Output Off-State Resistance: 330 kΩ
- Output On-State Resistance: 0.8 Ω
- Turn-On/Off Delay: 5 ms
- Sample Update Time: 0.5 ms
- SOE Resolution: 1 ms
- Time-Stamp Accuracy: ±0.5 ms
- Self-Test Interval: 5 minutes
- System Supply Voltage Range: 20 to 32 VDC
- Isolation Power Group to Power Group: 150 V reinforced
- Channel to Channel Isolation: 250 V basic
- Dimensions: 266 mm height x 31 mm width x 303 mm depth
- Weight: 1.342 kg
Functional Features:
- 32 triple modular redundant output channels
- Comprehensive automatic diagnostics and self-test
- Automatic line monitoring per channel for open circuit and short circuit detection
- Electronic latching short circuit protection
- 2500V impulse withstand optoelectronic isolation barrier
- Automatic over-current protection per channel without fuses required
- On-board sequence of events reporting with 1 ms resolution
- Hot-replaceable online using dedicated companion slot
- Front-panel output status LEDs for each channel
- Front-panel module status LEDs indicating health and operational mode
- Detection of stuck-on and stuck-off failures per channel
Application Scenarios:
- Emergency shutdown valve control
- High-voltage DC solenoid operation
- Safety instrumented system final elements
- Power generation protection systems
- Chemical process shutdown applications
Performance Parameters:
- Operating temperature range from 0°C to +60°C
- Storage temperature range from -25°C to +70°C
- Relative humidity from 10% to 95% non-condensing
- High reliability with fault-tolerant output operation
Material Composition:
- Industrial-grade electronic components
- High-voltage output transistors
- Optoelectronic isolation devices
- Durable PCB construction
Structural Characteristics:
- Compact 32-channel design in standard Trusted form factor
- Four independent power groups for fault containment
- Front-panel comprehensive LED status indication
- Companion slot support for maintenance
Working Principle: Each output channel employs triple modular redundant architecture with three independent output circuits. A majority voting mechanism controls the final output state. Automatic diagnostics measure current and voltage on each portion of the voted output channel, detecting stuck-on and stuck-off failures. Automatic line monitoring verifies field wiring continuity and load integrity.
Installation Requirements:
- Install in appropriate Trusted chassis slot
- Verify load current requirements per power group
- Ensure proper field wiring grounding
- Observe maximum current ratings per group
Usage Precautions:
- Do not exceed 2 A per power group
- Verify minimum load current of 20 mA for proper operation
- Monitor front-panel LEDs for fault indication
- Use hot-swap procedures for module replacement
- Ensure proper ventilation for thermal management
