NFDV151-P60 | Yokogawa STARDOM Digital Input Module

Product Overview

The Yokogawa NFDV151-P60 serves as a high-density digital input interface for the STARDOM autonomous controller series. This module facilitates the acquisition of discrete signals from field devices such as limit switches, proximity sensors, and push buttons. We supply this unit as 100% Brand New and Original, ensuring your control architecture benefits from factory-certified timing accuracy and high-voltage isolation.

Part Number Breakdown

The NFDV151 configuration follows a specific hardware logic designed for industrial scalability:

Technical Specifications

The NFDV151-P60 provides robust electrical characteristics for reliable signal detection:

• Input Channels: 32 channels (Common minus side every 16 channels)

• Rated Input Voltage: 24 VDC

• Input ON Voltage: 18 to 26.4 VDC

• Input OFF Voltage: 5.0 VDC or less

• Input Current: 4.1 mA ±20% per channel (at rated voltage)

• Withstanding Voltage (Signal to System): 2000 V AC for 1 minute

• Input Response Time: ≤ 8 ms (Status input mode)

• Minimum ON Detection: 20 ms (Push button mode)

• Maximum Current Consumption: 500 mA (5 V DC)

• Dimensions: 100 mm (W) x 30 mm (H) x 110 mm (D)

• Weight: 0.3 kg

Engineering Advantages

The NFDV151-P60 optimizes field-to-controller communication through several key technical advantages:

• High-Density Signal Processing: By incorporating 32 channels into a compact 100mm wide footprint, this module significantly reduces the required rack space. Engineers can manage high-volume discrete I/O without expanding the physical cabinet size.

• Superior Dielectric Strength: The 2000V AC withstanding voltage provides a robust barrier between field-side electrical surges and the sensitive system logic. This protection prevents catastrophic failure of the central processor during external ground faults or lightning strikes.

• Dual-Mode Detection Logic: The module supports both standard status monitoring and specialized push-button detection. The push-button mode utilizes a 20ms detection window to filter out mechanical contact chatter, ensuring the system registers only deliberate operator actions.

• Flexible Termination Options: Support for both Pressure Clamp Terminals and MIL Connector Cables allows for rapid pre-wiring or traditional point-to-point field termination. This flexibility accelerates the commissioning phase during plant startups.

FAQs

Q: Can the NFDV151-P60 handle 24V AC signals? A: No. The module accepts only 24V DC rated input. Applying AC voltage will damage the internal optocouplers.

Q: How does the "Common Minus" configuration work for the 32 channels? A: The module divides the 32 channels into two groups of 16. Each group shares a common negative terminal, allowing you to isolate different power sources for separate groups of field devices.

Q: What is the maximum allowable voltage for this module? A: The unit withstands an instantaneous maximum of 30.0 VDC. Operating the module continuously above 26.4 VDC may cause overheating or premature failure of the input circuits.

Q: Does this module require external power for the system side? A: No. The module draws its primary operating current (500 mA at 5V DC) directly from the STARDOM baseplate bus. However, you must provide the 24V DC field-side power for the input signals.