Product Description
The SSC50D-F2521 is a high-availability Safety Control Unit (SCU) serving as the logical processing engine for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). Engineered for mission-critical reliability, this duplexed controller features a redundant architecture that allows for continuous operation even in the event of a hardware fault. It is specifically designed to meet the rigorous demands of SIL3 safety loops, providing a robust platform for Emergency Shutdown (ESD), Fire and Gas (F&G) monitoring, and Burner Management Systems (BMS).
Technical Specifications
| Specification | Details |
|---|---|
| Model Configuration | SSC50D-F2521 |
| Safety Rating | Certified up to SIL 3 (IEC 61508 compliant) |
| Redundancy Type | Duplexed (dual-redundant) CPU modules for fault tolerance |
| Control Bus Interface | Vnet/IP high-speed safety communication |
| I/O Capacity | Supports high-density local and remote I/O nodes |
| Thermal Tolerance | Wide-range operation from -20°C to +70°C |
| Protection Circuitry | Integrated overcurrent, overvoltage, and short-circuit safeguards |
| Synchronization | Supports high-precision time stamping for Sequence of Events (SOE) recording |
| Housing Construction | Ruggedized, compact chassis designed for vibration-prone industrial environments |
Safety Integrity and Operational Logic
The SSC50D-F2521 differentiates itself through its "Vnet/IP" safety communication capabilities, allowing for seamless integration with Centum VP Distributed Control Systems while maintaining strict safety network isolation. The duplexed design ensures that a single internal failure will not cause a nuisance trip, thereby maximizing plant uptime without compromising personnel safety. Its firmware is optimized for rapid logic execution, vital for high-speed protective functions in oil and gas, petrochemical, and power generation facilities.
Functional Comparison: SSC50D vs. SSC60D
While both units support duplexed safety logic, the SSC50D-F2521 is often selected for standard rack-mount installations requiring specific Vnet/IP connectivity, whereas the SSC60D series may offer different node capacities or specialized environmental ratings. The SSC50D-F2521 remains a staple for mid-to-large scale safety instrumented functions requiring reliable SIL3 performance.
FAQ
Q: Does the SSC50D-F2521 require a specific rack type for installation?
A: Yes, the SSC50D-F2521 is typically installed in a dedicated safety control nest or rack that provides the necessary backplane for CPU redundancy and power distribution.
Q: Can this unit be used as a standalone safety controller?
A: While it can function as a standalone safety engine, it is most commonly integrated into a larger ProSafe-RS network to leverage centralized monitoring and diagnostic features.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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