PLCs, Power Supplies & Others

Technical Specifications and Hardware Overview

The Fuji NP1AYH2 serves as an analog input module for the MICREX-F series programmable controller system. This module measures 128 mm in height, 38 mm in width, and 100 mm in depth for standard DIN rail mounting. It weighs approximately 0.41 kilograms, which enables straightforward handling during installation procedures. The unit draws 0.15 A from a 5 V DC backplane supply for logic operation. It also requires an external 24 V DC supply for field input signal conditioning. The module provides 8 analog input channels for high-precision signal acquisition.

Each input channel accepts 4–20 mA current signals for process variable measurement. The unit offers 14-bit resolution for accurate analog-to-digital conversion across all channels. It includes a built-in 250 Ω resistor for current-to-voltage conversion on each input. The module provides a typical conversion time of 10 ms per channel for timely updates. It features optical isolation between the analog inputs and internal logic circuits. The unit contains no onboard memory for energy storage applications. The operating temperature range spans -10°C to 55°C for industrial environments. Storage temperatures extend from -20°C to 70°C without causing component damage. Humidity tolerance covers 10% to 90% non-condensing conditions.

Signal Conversion and Accuracy Features

This analog module converts 4–20 mA signals into digital values for the CPU. It provides 14-bit resolution for precise measurement of process variables. The Fuji NP1AYH2 achieves ±0.15% full-scale accuracy across all input channels. It includes a 250 Ω resistor to convert current signals to voltage internally. The unit applies a moving-average filter to reduce process noise and signal fluctuations. It stores calibration coefficients in EEPROM for reliable data retention after power cycles. The module provides LED indicators for power and channel status monitoring.

Installation and Application Information

The NP1AYH2 mounts on a standard DIN rail within the MICREX-F system. It requires 30 mm clearance above and below for adequate ventilation. The module connects to field transmitters through a screw-type terminal block. It works with 2-wire and 4-wire transmitters in process applications. The unit carries CE, UL, and CSA certifications for broad deployment. It passes vibration testing at 5 to 500 Hz with 0.5 g amplitude. The module withstands shock loads up to 10 g for 11 ms duration.

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