The Yokogawa SDV531-L63 is a high-reliability digital output module designed for Yokogawa ProSafe-RS Safety Instrumented Systems (SIS) and compatible CENTUM safety node architectures.
It delivers 24 V DC ON/OFF control signals to field devices such as solenoid valves, relays, alarms, and actuators. Compared to the standard SDV531, the “-L63” variant is optimized for long-distance wiring, cable interface compatibility, and harsh industrial environments, making it ideal for large-scale safety systems.
The suffix code provides key configuration meaning:
- L = Long-distance type
- 6 = Signal cable interface adapter (e.g., AKB331)
- 3 = ISA G3 environmental rating (-20°C to +70°C)
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Yokogawa |
| Model | SDV531-L63 |
| Product Type | Digital Output Module |
| System Compatibility | ProSafe-RS / CENTUM safety node |
| Output Channels | 8 channels (module isolated) |
| Output Voltage | 24 V DC |
| Output Type | Current source |
| Max Load Current | 0.6 A per channel (4.8 A total) |
| Min Load Current | 35 mA |
| Leakage Current (OFF) | ≤ 1.6 mA |
| Load Resistance | 40 – 685 Ω |
| External Power Supply | 24 V DC ±20% |
| Response Time | ≤ 30 ms |
| Withstand Voltage | 2 kV AC (1 min) |
| Operating Temperature | -20°C to +70°C |
The module ensures stable and safe control output performance, even in high-noise or long-distance installations.
Physical Characteristics
| Item | Specification |
|---|---|
| Dimensions (W × H × D) | Approx. 130 × 107.5 × 32.8 mm |
| Weight | Approx. 0.28 – 0.34 kg |
| Mounting Type | Rack / safety node installation |
| Structure | Plug-in modular I/O card |
| Wiring Options | Pressure clamp / MIL cable / AKB331 signal cable |
Recommended Related Models
- Yokogawa SDV531 – standard digital output module
- Yokogawa SDV144 – digital input module
- Yokogawa SAI533 – analog output module
- Yokogawa SAV144 – analog input module
- Yokogawa SCB110-S0 – wiring diagnostic adapter
Popular Yokogawa Models
- Yokogawa SDV531-L63 – long-distance digital output module
- Yokogawa SDV144 – safety digital input module
- Yokogawa SAI533 – analog output module
- Yokogawa SAV144 – analog input module
- Yokogawa CENTUM VP – DCS platform
