Description
Product Description
YOKOGAWA SDV144-S63 is a high-density digital output module belonging to Yokogawa’s CENTUM VP DCS and ProSafe-RS SIS product lines, engineered for reliable control signal output in safety-critical industrial processes such as oil & gas refining, chemical manufacturing, and power generation. YOKOGAWA SDV144-S63 integrates 32 digital output channels with relay-based switching, delivering robust performance for controlling valves, pumps, and other field actuators. YOKOGAWA SDV144-S63 features channel-level isolation and compliance with IEC 61508 SIL 2 standards, ensuring safe and stable operation even in harsh electromagnetic environments. Additionally, YOKOGAWA SDV144-S63 supports hot-swappable installation and real-time diagnostic monitoring, minimizing maintenance downtime and enhancing the availability of control systems. As a key component of Yokogawa’s distributed I/O architecture, YOKOGAWA SDV144-S63 provides precise, fail-safe output signals to enable efficient process control and emergency shutdown operations.
Product Parameters
- Brand/Model: YOKOGAWA SDV144-S63
- Core Output Parameters
- Number of Channels: 32 digital output channels (4 channels per group, isolated between groups)
- Output Type: Form A (SPST) electromechanical relays
- Rated Voltage: 24V DC / 120V AC (configurable per channel group)
- Rated Current: 2A per channel (resistive load), 1A per channel (inductive load)
- Switching Time: ≤10ms (make), ≤5ms (break)
- Isolation: Channel-to-channel isolation (1500V AC), module-to-backplane isolation (2500V AC)
- System & Diagnostic Parameters
- Compatible Systems: Yokogawa CENTUM VP R6.03+, ProSafe-RS V3.0+
- Diagnostic Functions: Relay contact status monitoring, overcurrent detection, power supply fault alerts
- Communication Protocol: V-net/IP (Yokogawa proprietary)
- Configuration Software: Yokogawa CENTUM VP Engineering Environment
- Environmental & Physical Parameters
- Operating Temperature: -20°C ~ +60°C
- Storage Temperature: -40°C ~ +85°C
- Vibration Resistance: 5g (10-500Hz, IEC 60068-2-6 standard)
- Power Consumption: ≤20W (full load)
- Protection Grade: IP20 (cabinet installation)
- Installation Method: DIN 35mm rail mounting or Yokogawa standard rack installation
- Dimensions: 170mm × 120mm × 45mm
Advantages & Features
- High-Density Channel Integration: YOKOGAWA SDV144-S63 packs 32 digital output channels into a compact module, reducing the number of components required for large-scale control systems and simplifying cabinet layout. This high density lowers installation costs and saves valuable rack space.
- Fail-Safe Relay Design: The electromechanical relay outputs of YOKOGAWA SDV144-S63 provide inherent fail-safe operation (contacts open on power loss), critical for safety-critical applications such as emergency shutdown valves or pump trip circuits. Channel-level isolation prevents cross-channel interference and enhances system reliability.
- Comprehensive Diagnostics: YOKOGAWA SDV144-S63 monitors relay contact wear, overcurrent conditions, and power supply status in real time, sending alerts to the DCS/SIS for potential faults (e.g., stuck relays, short circuits). This enables predictive maintenance and reduces unplanned downtime.
- Hot-Swappable & Easy Maintenance: YOKOGAWA SDV144-S63 supports hot-swappable replacement without shutting down the control system, allowing maintenance teams to replace faulty modules during normal operation. Clear LED indicators for channel and module status simplify troubleshooting.
Application Fields & Cases
- Oil Refinery Emergency Shutdown System: A major oil refinery deployed YOKOGAWA SDV144-S63 modules in its ProSafe-RS SIS to control emergency shutdown valves (ESVs) and fire suppression systems. The module’s fail-safe relay design ensured ESVs closed automatically during a power outage, preventing a potential hydrocarbon leak.
- Chemical Plant Reactor Control: A petrochemical plant integrated YOKOGAWA SDV144-S63 into its CENTUM VP DCS to control feed pumps, agitators, and cooling valves for batch reactors. The high-density channels reduced the number of modules needed by 50%, while real-time diagnostics alerted operators to a stuck valve relay before it caused a reactor temperature excursion.
- Power Plant Boiler Feedwater Control: A coal-fired power plant used YOKOGAWA SDV144-S63 to control boiler feedwater pumps and steam valves. The module’s vibration resistance and wide temperature range ensured reliable operation in the harsh boiler room environment, with hot-swappable capability allowing maintenance during peak power generation hours.
Competitor Comparison
| Comparison Dimension | YOKOGAWA SDV144-S63 | Competitor 1 (Siemens SM 322 DO Module) | Competitor 2 (Emerson DeltaV DO Module) |
|---|---|---|---|
| Number of Channels | 32 | 16 | 16 |
| Isolation Level | 1500V AC (channel-to-channel) | 500V AC (channel-to-channel) | 1000V AC (channel-to-channel) |
| SIL Certification | SIL 2 | SIL 2 | SIL 2 |
| Hot-Swap Support | Yes | Yes | Yes |
| Fail-Safe Design | Inherent (relay open on power loss) | Optional (with external circuitry) | Optional (with external circuitry) |
| Core Advantages | High density, fail-safe relays, comprehensive diagnostics | Siemens ecosystem integration | DeltaV system compatibility |
Selection Suggestions & Precautions
- Selection Suggestions: YOKOGAWA SDV144-S63 is ideal for Yokogawa CENTUM VP/ProSafe-RS users requiring high-density, fail-safe digital outputs for safety-critical applications. For lower channel counts (16 channels), Yokogawa SDV142-S63 is recommended. Non-Yokogawa system users may opt for Siemens SM 322 for PROFINET compatibility or Emerson DeltaV DO modules for DeltaV integration.
- Precautions:
- Match relay output voltage/current ratings to the connected field actuators (e.g., 24V DC for valves, 120V AC for pumps) to avoid relay damage.
- Use shielded cables for output wiring to minimize EMI interference and prevent false triggering of relays.
- Regularly inspect relay contact status via DCS diagnostics (recommended quarterly) to replace worn relays before failure.
- Ensure proper grounding of the module to comply with safety standards and prevent electrical hazards.
- Avoid exceeding the maximum inductive load rating (1A per channel) to prevent relay contact arcing and premature failure.
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