Yokogawa SDV531-S23 Functional Safety Digital Output Module
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Sku:SDV531-S23
Country Of Origin: Japan
Vendor: Yokogawa
Type: Functional Safety Digital Output Module
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Product description
Yokogawa SDV531-S23 Functional Safety Digital Output Module
The Yokogawa SDV531-S23, also cataloged as the SDV531-S23 Functional Safety Digital Output Module, provides eight isolated 24 V DC discrete output channels for safety logic execution in Yokogawa ProSafe-RS Safety Instrumented Systems.
Hardware Specifications
Parameter
Specification
Model
SDV531-S23
Brand
Yokogawa
Module Type
Functional Safety Digital Output Module
System Platform
ProSafe-RS; integrated CENTUM VP / CS 3000 networks
Number of Channels
8 isolated channels
Output Type
Current source, 24 V DC
Rated Output Voltage
24 V DC (+20% / -10%)
Maximum Load Current
0.6 A per channel; 4.8 A total maximum
Minimum Load Current
35 mA
OFF-State Leakage Current
<= 1.6 mA
Voltage Drop
<= 1.0 V DC
Response Time
<= 30 ms
Power Consumption
<= 280 mA at 5 V DC; <= 140 mA at 24 V DC
Withstanding Voltage
2,000 V AC for 1 minute between output lines and system
Insulation Resistance
100 Mohm minimum at 500 V DC
Safety Certification
SIL3, IEC 61508
Operating Temperature
-10 deg C to +60 deg C
Galvanic Isolation and Output Diagnostics
The SDV531-S23 provides isolated output channels between the system side and external field circuits. The isolation is specified for protection against external voltage disturbances, ground-loop effects, and electrical noise. The output stage supplies 24 V DC current-source signals for field devices such as actuators, solenoids, relays, contactors, and indicator circuits.
Integrated field diagnostics monitor output-loop conditions. The supplied specifications identify detection of open circuits, short circuits, and field-loop anomalies. The specified maximum load is 0.6 A per channel, with a total maximum load of 4.8 A.
The output electrical interface has a specified voltage drop of no more than 1.0 V DC and an OFF-state leakage current of no more than 1.6 mA. The specified response time is no more than 30 ms.
Frequently Asked Questions (FAQ)
Q: How many discrete output channels are provided?
A: The SDV531-S23 provides 8 isolated digital output channels.
Q: What output voltage and load current are specified?
A: The rated output is 24 V DC with a tolerance of +20% / -10%. The maximum load is 0.6 A per channel and 4.8 A for all channels combined.
Q: Is the module suitable for SIL3 applications?
A: Yes. The supplied data specifies SIL3 certification according to IEC 61508 for use within ProSafe-RS safety systems.
Field Installation Guidelines
Install the module only in the designated Yokogawa system hardware configuration and compatible base or backplane assembly.
Verify the field wiring against the applicable ProSafe-RS system wiring documentation before energization.
Maintain separation between discrete output wiring and circuits carrying high transient current or strong electromagnetic interference.
Route signal cables to minimize unnecessary parallel runs with power cables.
Apply cable shielding and shield termination according to the system grounding design and Yokogawa installation documentation.
Confirm field device voltage and current requirements before connecting actuators, solenoids, relays, or contactors.
Check output polarity and terminal assignment before applying field power.
Verify that the connected field load remains within the specified 35 mA minimum and 0.6 A maximum channel current.
Inspect field-loop continuity and short-circuit conditions during commissioning using the applicable system diagnostics.
Do not assume hot-swap capability unless it is explicitly permitted by the applicable Yokogawa hardware documentation.
Verify insulation and isolation requirements before connecting circuits with independent external power sources.
Answer 1: PLC DCS Pro Ltd. collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.
Question 2: What Is The Warranty Period?
Answer 2: We offer a standard one-year warranty for all new and original items.
Question 3: What Payment Methods Do We Accept?
Answer 3: We accept 100% T/T (Telegraphic Transfer) before shipping. For items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. If you have an agent in China, please contact us for RMB transfer.
Question 4: What Shipping Methods Do We Use?
Answer 4: We primarily utilize carriers such as FedEx, DHL, UPS, BRE, etc. If you have an account with any of these carriers, you can arrange the shipping yourself. Additionally, we offer free shipping to China freight forwarders.
Question 5: What Is Our Delivery Time?
Answer 5: Typically, delivery takes around 1-3 days after receiving the advance payment. For items with a quoted lead time, delivery will occur as per the specified lead time.
Question 6: How Do We Package The Goods?
Answer 6: Our packaging process involves multiple layers of protection. Initially, the product is placed in its original box, sealed with a label. Then, we add a layer of bubble wrap to safeguard against collisions during transportation. Finally, all products are securely packed in sturdy boxes for further protection.
Question 7: How Can Customers Contact Us And Request A Quote?
Answer 7: Customers can inquire via email, WhatsApp, WeChat, Skype, or any preferred communication platform. Simply reach out to us, and we'll promptly provide a quote tailored to your needs.
Warranty Conditions
At PLC DCS Pro Ltd., we are committed to ensuring the quality of our products. Our one-year warranty provides coverage for any defects in material or workmanship, excluding damages caused by deliberate misuse.
🛡️Coverage Details:
This warranty encompasses all instances of product malfunction or failure due to inherent manufacturing flaws, with the exception of intentional damage.
📝Claim Process:
To avail of warranty services, please notify us of any quality-related issues within the warranty period. We may conduct online troubleshooting and examination as needed.
🚚Shipping Assistance:
We understand the importance of prompt service. Therefore, we cover return shipping costs for warranty-related returns within the first month of supply. Within three months of supply, we cover one-way shipping costs for warranty-related returns. After three months, the customer is responsible for shipping costs both ways.
🚫Exclusions:
Unauthorized modifications, repairs, or misuse of the product.
