Yokogawa NFAP135-S50 Pulse Input Module (Isolated)

Overview

The Yokogawa NFAP135-S50 is an isolated pulse input module designed for precise pulse counting and frequency measurement in industrial automation and process control systems. It reliably converts field pulse signals into digital data for monitoring and control applications, ensuring stable performance in industrial environments.

General Information

Part Number: NFAP135-S50

Manufacturer: Yokogawa Electric Corporation

Brand: Yokogawa

Country of Origin: Japan

Series: NFA Series Pulse Input Modules

Type: Isolated Pulse Input Module

Installation: Rack-mounted control system module

Function: Pulse signal acquisition and frequency measurement for automation systems

Power Specifications

Supply Voltage: Powered via system backplane (module-dependent)

Power Consumption: Low-power industrial electronic module

Input Type: Backplane-powered control system interface

Protection: Electrical isolation, surge protection, and noise immunity design

Indicators: LED status indicators for module and channel status

Communication & Interface

Input Channels: Multi-channel pulse input (system configuration dependent)

Signal Types: Pulse, frequency, and contact input signals

Isolation: Galvanic isolation between field inputs and system bus

System Integration: Compatible with Yokogawa distributed control systems (DCS)

Counting Function: High-speed pulse counting and frequency measurement

Diagnostics: Channel-level diagnostics and signal fault detection

Environmental

Operating Temperature: −20 to +60 °C

Storage Temperature: −40 to +70 °C

Humidity: 5% to 95% RH, non-condensing

Protection Rating: Industrial rack-mounted module (internal system installation)

Vibration Resistance: Suitable for continuous industrial operation environments

Dimensions & Weight

Dimensions (H × W × D): 32.8 × 107.5 × 130 mm

Weight: 0.3 kg

High-precision pulse processing for stable and reliable industrial control systems.