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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
| Parameter | Description |
|---|---|
| Model | NFAP135-S00 |
| Manufacturer | Yokogawa Electric Corporation |
| Type | Pulse Input Module |
| Number of Channels | 8 independent pulse input channels |
| Signal Type | Pulse, contact, and open collector |
| Input Frequency Range | 0.1 Hz to 10 kHz |
| Resolution | 32-bit counting capability |
| Isolation | Channel-to-channel and channel-to-ground isolation |
| Update Time | Approx. 100 ms |
| Power Supply | 24 V DC (supplied via system baseplate) |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 10%–90% RH, non-condensing |
| Diagnostic Features | Self-diagnosis, signal integrity monitoring |
| Mounting Method | Mounted on dedicated Yokogawa baseplate |
| Dimensions (W × H × D) | 32.8 × 107.5 × 130 mm |
| Weight | 0.3 kg |
| Certifications | CE, ATEX, IECEx (depending on system configuration) |
Applications
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Flow Measurement: Converts pulse signals from flowmeters into process data for monitoring and control.
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Speed Monitoring: Captures pulses from rotating equipment for real-time speed control.
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Batch and Totalization: Used in batching systems to accumulate material counts accurately.
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Energy Monitoring: Interfaces with energy meters generating pulse outputs for consumption tracking.
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Safety Systems: Supports pulse-based interlocks and counting applications in critical processes.
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Industrial Automation: Suitable for plants where pulse signal integration with control systems is required.
Product Advantages
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High-Speed Signal Processing: Capable of handling pulse frequencies up to 10 kHz, ensuring accurate real-time monitoring.
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32-Bit Counting: Supports extended counting without overflow, suitable for large batch operations.
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Channel Isolation: Prevents signal interference and ensures system safety and reliability.
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Diagnostic and Monitoring Features: Includes loop integrity checks and self-diagnostics for early fault detection.
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Seamless System Integration: Optimized for Yokogawa’s control architectures, reducing engineering effort.
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Compact and Robust Design: Built to withstand industrial environments while saving panel space.
FAQ
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What types of pulse inputs are supported by the NFAP135-S00?
It supports contact pulse inputs and open collector pulse signals. -
What is the maximum input frequency for this module?
The module supports frequencies up to 10 kHz. -
How many channels does this module provide?
It offers 8 independent pulse input channels. -
Does the module offer galvanic isolation?
Yes, it provides channel-to-channel and channel-to-ground isolation for safety and signal integrity. -
What is the resolution of the counting function?
The module provides a 32-bit counting capability for accurate accumulation. -
Can the module detect input signal faults?
Yes, it includes diagnostics for signal integrity and wiring issues. -
What is the typical response or update time?
Approximately 100 milliseconds per cycle. -
Is the NFAP135-S00 suitable for redundant configurations?
Yes, it supports redundancy when installed with compatible Yokogawa baseplates. -
Does the module support hot swapping?
Yes, it can be replaced without shutting down the system when redundancy is implemented. -
Is the module certified for hazardous areas?
Yes, it complies with ATEX and IECEx certifications for use in hazardous zones (depending on variant).
Related Models in the Same Series
| Model | Description |
|---|---|
| NFAP131-S00 | Pulse Input Module, 4 channels |
| NFAP136-S00 | High-Speed Pulse Input Module |
| NFAI841-S00 | Analog Input/Output Module, 8 channels |
| NFAT841-S00 | Analog Output Module, 8 channels |
| NFBM841-S00 | Mixed Analog I/O Module |
| NFAR841-S00 | Redundant Analog I/O Module |
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