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01 / SIGNAL CORE
A safety-oriented contact input architectureSDV144 is a digital input module for Yokogawa ProSafe-RS FIO architecture. It accepts field contact signals and provides 16 isolated input channels. The SDV144 family can be configured for dual redundancy, making the module suitable for safety-system input structures where continuity of field-state acquisition matters. The SDV144-S63 ordering configuration combines the standard SDV144 input architecture with a signal cable interface adapter, no explosion protection, and the ISA Standard G3 plus −20 to 70 °C option.
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FIELD INPUT MATRIX
16 isolated channels
ON: 1 kΩ maximum OFF: 100 kΩ minimum Input current: 6 mA ±20% Maximum input voltage: 30 V DC CONFIGURATION NOTE
SDV144-S63 uses the signal-cable interface configuration and the G3 / −20 to 70 °C option. |
| Item | SDV144-S63 | Engineering Significance |
| Input | No-voltage contact | Direct contact-state acquisition |
| Input current | 6 mA ±20% | Defined field-contact excitation |
| Contact threshold | ON ≤1 kΩ / OFF ≥100 kΩ | Clear resistance-state separation |
| Withstand voltage | 2 kV AC / 1 min | Input-to-system insulation test level |
| Power consumption | 290 mA max. at 5 V DC; 140 mA max. at 24 V DC | Useful for node power budgeting |
| SDV144-S63 Digital INPUT 16 channels 24 V DC Module isolation |
SDV541-S63 Digital OUTPUT 16 channels 24 V DC Module isolation |
SAI143 / SAV144 Analog INPUT family 4–20 mA / 1–10 V Different signal domain |
The practical distinction is signal type: SDV144 handles discrete contact states, while SDV541 is used for discrete output control. Analog modules such as SAI143 or SAV144 serve continuously varying process measurements rather than contact-state acquisition.
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EMAIL SALES WHATSAPPSales Manager: Miya Zheng · sales@amikon.cn · +86 18020776792
| Q1 · Can SDV144-S63 be used where the field devices provide dry-contact status rather than a powered digital signal? Yes. SDV144 is specified for no-voltage contact inputs. The defined ON/OFF resistance conditions are 1 kΩ maximum for ON and 100 kΩ minimum for OFF. |
Q2 · What makes SDV144-S63 different from ordering a basic SDV144 configuration? The S63 combination adds the signal cable interface adapter, no-explosion-protection configuration, and ISA Standard G3 with −20 to 70 °C option. |
| Q3 · Is SDV144-S63 suitable when dual-redundant input architecture is required? SDV144 can be used in a dual-redundant configuration. The exact node arrangement and system engineering must match the applicable ProSafe-RS configuration. |
Q4 · What should be checked when replacing an existing SDV144-S33 with SDV144-S63? Check the existing field interface, cable arrangement, node configuration and environmental requirement. SDV144-S63 uses the signal cable interface and G3 / −20 to 70 °C configuration. |
| Q5 · Does SDV144-S63 provide field wiring diagnostic options? For SDV144 field-wiring diagnostics, Yokogawa specifies SCB100 for defective open-circuit detection under normally-off conditions and SCB110 for defective short-circuit detection under normally-on conditions. |
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