Product Description

The F3XD16-3N is a high-speed digital input module within the Yokogawa FA-M3 Range-free Controller series. It is engineered to interface field-level discrete signals with the system CPU, ensuring reliable and accurate signal acquisition for time-critical automation tasks.

The module features photocoupler isolation, protecting internal logic circuits from electrical noise, voltage spikes, and ground potential differences commonly present in industrial environments. It supports both sink and source wiring (NPN/PNP) configurations, providing flexible integration with various sensor types.

An 18-point detachable terminal block (M3.5 screws) allows secure wiring and simplifies installation and maintenance. Compact dimensions and low power consumption make it suitable for high-density control panels.

Technical Specifications

Application

The F3XD16-3N is designed for high-speed discrete signal monitoring in industrial automation systems. Typical applications include:

• Conveyor and sortation sensor inputs

• Limit switch monitoring in CNC machinery

• Pulse detection in packaging equipment

• Distributed I/O integration within MES and DCS systems

With configurable input filtering and robust isolation architecture, the module ensures stable operation in electrically noisy industrial environments.

FAQ

Q1: Does this module require an external power supply?
Yes. A 24V DC external power supply is required for the input circuits, while internal logic power is supplied by the FA-M3 base unit.

Q2: Can sink and source inputs be mixed on the same module?
The module is divided into two 8-point common groups. Although both sink and source wiring are supported, consistent wiring per common group is recommended for simplified design and troubleshooting.

Q3: How does the F3XD16-3N handle electrical noise?
It uses photocoupler isolation combined with adjustable digital filtering (up to 16 ms) to suppress transient interference and debounce field signals.