Product Description
The NFDV157-S00 is a high-density safety digital input module developed for the Yokogawa Electric Corporation ProSafe-RS Safety Instrumented System (SIS).
This Safety Integrity Level 3 (SIL3) certified module is designed to acquire 32 discrete ON/OFF field signals from devices such as limit switches, push buttons, pressure switches, and safety interlock contacts.
The module provides channel-to-system optical isolation, protecting safety logic from electrical noise, ground loops, and surge disturbances commonly found in heavy industrial environments. The -S00 revision represents the standard hardware configuration optimized for long-term operational stability and compatibility with ProSafe-RS safety nodes.
Continuous internal diagnostics ensure that any hardware anomaly forces the safety system into a fail-safe state, which is essential for emergency shutdown and plant protection applications.
Detailed Technical Specifications
| Parameter | Specification |
|---|---|
| Model Identification | NFDV157-S00 |
| Module Type | Safety Digital Input (DI) |
| Channels | 32 channels (non-isolated between channels, isolated from system) |
| Input Current | 6 mA per channel at 24 V DC |
| Input Response Time | ≤ 40 ms (safety processing cycle) |
| Status Indicators | Power, System Fault, Channel Status LEDs |
| Terminal Type | Pressure clamp terminal block |
| Power Consumption | 320 mA max at 5 V DC (internal) |
| Environmental Protection | ISA S71.04 G3 Conformal Coating |
| Operating Temperature | −20°C to +70°C |
| Weight | 0.35 kg |
Safety and Operational Context
The NFDV157-S00 is commonly deployed within SIL3 safety loops in process industries where personnel protection and equipment safety are critical. Typical applications include:
-
Emergency Shutdown Systems (ESD): Monitoring trip switches and manual shutdown stations
-
Fire and Gas Systems (F&G): Receiving alarm and detection signals from safety sensors
-
Burner Management Systems (BMS): Monitoring flame detection and fuel safety interlocks
The module continuously performs self-check diagnostics to ensure reliable detection of signal faults or internal hardware failures.
FAQ
Can the NFDV157-S00 be used in redundant configurations?
Yes. Two NFDV157-S00 modules can be installed in redundant I/O nodes to meet high availability and SIL3 reliability requirements while reducing the risk of nuisance trips.
Does this module support Sequence of Events (SOE) recording?
Yes. The module supports high-resolution event timestamping, allowing operators to reconstruct safety trip sequences using the ProSafe-RS SOE monitoring station.
What is the difference between -S00 and -S10 suffixes?
The -S00 is the standard 32-channel input variant. Other suffixes such as -S10 or -S11 may indicate enhanced diagnostics, different terminal wiring options, or specialized safety monitoring features such as line fault detection.
| 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? |
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