Yokogawa NFAP135-S00 Pulse Input Module

Product Introduction

The Yokogawa NFAP135-S00 Pulse Input Module is a high-precision module designed to handle pulse signal acquisition for industrial automation and process control systems. It is part of Yokogawa’s advanced N-IO (Network I/O) family, delivering superior reliability, fast response, and robust performance under harsh conditions. This module plays a critical role in applications requiring accurate pulse counting, such as flow measurement, rotational speed monitoring, and totalizing operations in industries like oil & gas, power generation, and chemical processing.

The NFAP135-S00 module supports a wide range of pulse input types and ensures secure, real-time signal transmission to the control system. Its advanced design allows for redundancy, isolation, and diagnostic features, meeting strict safety and performance requirements for modern process plants.

Product Specifications

Applications

• Flow Measurement: Converts pulse signals from flowmeters into process data for monitoring and control.

• Speed Monitoring: Captures pulses from rotating equipment for real-time speed control.

• Batch and Totalization: Used in batching systems to accumulate material counts accurately.

• Energy Monitoring: Interfaces with energy meters generating pulse outputs for consumption tracking.

• Safety Systems: Supports pulse-based interlocks and counting applications in critical processes.

• Industrial Automation: Suitable for plants where pulse signal integration with control systems is required.

Product Advantages

• High-Speed Signal Processing: Capable of handling pulse frequencies up to 10 kHz, ensuring accurate real-time monitoring.

• 32-Bit Counting: Supports extended counting without overflow, suitable for large batch operations.

• Channel Isolation: Prevents signal interference and ensures system safety and reliability.

• Diagnostic and Monitoring Features: Includes loop integrity checks and self-diagnostics for early fault detection.

• Seamless System Integration: Optimized for Yokogawa’s control architectures, reducing engineering effort.

• Compact and Robust Design: Built to withstand industrial environments while saving panel space.

FAQ 

1. What types of pulse inputs are supported by the NFAP135-S00?
   It supports contact pulse inputs and open collector pulse signals.

2. What is the maximum input frequency for this module?
   The module supports frequencies up to 10 kHz.

3. How many channels does this module provide?
   It offers 8 independent pulse input channels.

4. Does the module offer galvanic isolation?
   Yes, it provides channel-to-channel and channel-to-ground isolation for safety and signal integrity.

5. What is the resolution of the counting function?
   The module provides a 32-bit counting capability for accurate accumulation.

6. Can the module detect input signal faults?
   Yes, it includes diagnostics for signal integrity and wiring issues.

7. What is the typical response or update time?
   Approximately 100 milliseconds per cycle.

8. Is the NFAP135-S00 suitable for redundant configurations?
   Yes, it supports redundancy when installed with compatible Yokogawa baseplates.

9. Does the module support hot swapping?
   Yes, it can be replaced without shutting down the system when redundancy is implemented.

10. Is the module certified for hazardous areas?
    Yes, it complies with ATEX and IECEx certifications for use in hazardous zones (depending on variant).

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