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🔹 Product Description
The Yokogawa SDV144-S53 S2 is a 16-channel digital input module designed for high-reliability applications within the ProSafe-RS Safety Instrumented System (SIS). It is optimized for detecting dry contact signals, ensuring robust performance and fault-tolerant operation. The module supports dual-redundant configurations, providing high system reliability for safety-critical processes. Its compact design allows easy integration into Safety Node Units (SNB10D) and Safety Control Units (SSC series).
🔹 Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SDV144-S53 S2 |
| Input Channels | 16 |
| Input Signal Type | Dry contact (No-voltage contact) |
| Input Voltage | 24 V DC ±20% / -10% |
| Input Current | 6 mA ±20% (with 24 V DC external supply) |
| Contact Rating | ≥ 10 mA at 24 V DC ±20% |
| Input Response Time | 40 ms maximum |
| Power Supply | 24 V DC ±20% / -10% |
| Current Consumption | 290 mA max (5 V DC), 140 mA max (24 V DC) |
| Isolation | 2 kV AC between input and system |
| Operating Temperature | -20°C to 70°C |
| Humidity | 5% to 95% RH, non-condensing |
| Dimensions | 130 × 32.8 × 107.5 mm |
| Weight | 0.36 kg |
🔹 Applications
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Process safety monitoring in chemical, petrochemical, and power plants
-
Safety shutdown logic for emergency systems
-
Redundant digital signal acquisition for safety-critical processes
-
Integration with Safety Node Units (SNB10D) and Safety Control Units (SSC10/50/60)
-
Use in environments with corrosive gases (G3/GX classification)
🔹 Advantages
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High reliability with dual-redundant configurations
-
Compact design for space-efficient installations
-
Fast response time for emergency shutdown systems
-
Wide operating temperature and humidity tolerance
-
Electrical isolation ensures protection against transient faults
-
Supports both SNB and SSC safety control units
🔹 FAQ
1. What type of input signals does the SDV144-S53 S2 accept?
It accepts dry contact (no-voltage) digital signals.
2. How many channels are available on this module?
The module provides 16 input channels.
3. What is the input voltage range?
The module operates at 24 V DC ±20% / -10%.
4. Can it be used in harsh environments?
Yes, it is suitable for G3 and GX classified corrosive environments.
5. What is the maximum input response time?
The response time is 40 milliseconds maximum.
6. What units is this module compatible with?
It is compatible with Safety Node Units (SNB10D) and Safety Control Units (SSC10, SSC50, SSC60).
7. Is redundancy supported?
Yes, it supports dual-redundant configurations for enhanced reliability.
8. What are the dimensions and weight of the module?
Dimensions: 130 × 32.8 × 107.5 mm, Weight: 0.36 kg.
9. How is the module powered?
It is powered by 24 V DC ±20% / -10%.
10. Does it provide isolation for input signals?
Yes, it provides 2 kV AC isolation between input signals and the system.
🔹 Related Models (Same Series)
| Model | Channels | Input Type | Dimensions | Weight |
|---|---|---|---|---|
| SDV144-S51 | 16 | Dry contact | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S52 | 16 | Dry contact | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S54 | 16 | Dry contact | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S55 | 16 | Dry contact | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S56 | 16 | Dry contact | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S57 | 16 | Dry contact | 130 × 32.8 × 107.5 mm | 0.36 kg |
🔹 Popular Yokogawa Modules
| Model | Type | Channels | Dimensions | Weight |
|---|---|---|---|---|
| SDV144-S63 | Digital Input | 16 | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S64 | Digital Input | 16 | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S71 | Digital Output | 16 | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S72 | Digital Output | 16 | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S81 | Analog Input | 8 | 130 × 32.8 × 107.5 mm | 0.36 kg |
| SDV144-S82 | Analog Output | 8 | 130 × 32.8 × 107.5 mm | 0.36 kg |
