Overview
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SDV531 |
| Brand | Yokogawa |
| Product Type | Digital Output Module |
| Number of Outputs | 8 channels |
| Isolation | Module isolation |
| Output Voltage | 24 V DC |
| Output Format | Current source |
| Output Voltage Drop | 1 V maximum |
| External Power Supply | 24 V DC, +20%/-10% |
| Minimum External Power Supply Current Capacity | 5 A |
| Maximum Load Current | 0.6 A per output line |
| Maximum Total Output Current | 4.8 A across all output lines |
| Minimum Load Current | 35 mA |
| Load Resistance Range | 40 to 685 ohms |
| Maximum Leakage Current in OFF State | 1.6 mA |
| Maximum Output Response Time | 30 ms |
| Maximum Current Consumption at 5 V DC | 280 mA |
| Maximum Current Consumption at 24 V DC | 140 mA |
| External Connection | Pressure clamp terminal block, MIL cable, or dedicated signal cable |
| Compatible Dedicated Signal Cables | AKB331, AKB651 |
| Weight | 0.28 kg with pressure clamp terminal block or MIL cable |
| Weight with Dedicated Signal Cable Interface Adapter | 0.34 kg |
Output Configuration and Load Requirements
The SDV531 provides eight digital output channels for controlling external loads from a 24 V DC supply. Its current-source output format determines the direction of current delivery to the connected load. When selecting field devices, check the required operating current and resistance against the module’s specified load range.
Each output line supports up to 0.6 A, while the combined current across all eight output lines must not exceed 4.8 A. The external power supply must provide at least 5 A at the specified voltage range. Also, account for the maximum 1 V output voltage drop when checking the voltage available to the load.
Wiring and Electrical Considerations
The module supports pressure clamp terminal blocks, MIL cable connections, and dedicated signal cables identified as AKB331 and AKB651. The listed weight depends on the connection configuration: 0.28 kg for the pressure clamp terminal block or MIL cable configuration, and 0.34 kg when using the dedicated signal cable interface adapter.
The maximum OFF-state leakage current is 1.6 mA. Therefore, when connecting devices with low input-current requirements, verify that this leakage current will not cause an unintended ON indication. The specified output response time is 30 ms maximum.
Frequently Asked Questions
Q: How many output channels does the Yokogawa SDV531 provide?
A: The SDV531 provides eight output channels with module isolation. Each channel supports a maximum load current of 0.6 A, subject to the total output current limit of 4.8 A.
Q: What external power supply does the SDV531 require?
A: The specified supply is 24 V DC with a tolerance of +20%/-10% and a minimum current capacity of 5 A.
Q: Which connection options are specified for the SDV531?
A: The module supports pressure clamp terminal blocks, MIL cables, and dedicated signal cables AKB331 and AKB651. Confirm the required connection hardware before ordering.
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