Yokogawa F3XA16-1N AC Input Module 16-Point

Yokogawa F3XA16-1N AC Input Module for FA-M3 Systems

Product Introduction

The F3XA16-1N is a compact AC input module built for the Yokogawa FA-M3 range-free multi-controller. Specifically, it delivers sixteen input points for 100–120 V AC signals, which suits direct connection to pushbuttons, limit switches, and relay contacts in control panels. Furthermore, photocoupler isolation protects the PLC backplane from field-side noise and voltage spikes.

This module allows a 100% simultaneous ON ratio, so all sixteen channels can operate at once without derating. In addition, each input point supports individual interrupt specification, letting the CPU react quickly to critical events. The F3XA16-1N uses an 18-point terminal block with M3.5 screws and groups the inputs into two commons of eight points each.

Technical Specifications

The F3XA16-1N runs on a rated input voltage of 100–120 V AC at 50/60 Hz. Its operating voltage range covers 85–132 V AC, which tolerates normal supply variation in industrial settings. Meanwhile, the rated input current is 5.4–6.5 mA per point at 100–120 V AC, 60 Hz.

For dependable switching, the module turns on at a minimum of 80 V AC and 5 mA. Conversely, it turns off at a maximum of 40 V AC and 1 mA. The input response time is selectable: OFF-to-ON can be set to 15 ms max or 30 ms, while ON-to-OFF is selectable between 25 ms max and 40 ms. This choice helps engineers filter contact bounce or achieve faster reaction for time-critical signals.

Mechanical and Environmental Parameters

The F3XA16-1N draws 65 mA from the 5 V DC internal bus. It weighs roughly 180 g and connects externally through an 18-point terminal block. The module operates within 0 to 55°C ambient temperature and 10 to 90% RH without condensation. For storage, the range extends from -20°C to 75°C.

Besides, the surrounding atmosphere must be free of corrosive gases, flammable gases, and heavy dust. These limits match standard FA-M3 panel requirements, so the module fits typical factory floor conditions.

Installation Guide

First, mount the F3XA16-1N onto the FA-M3 base unit following the standard module procedure. Next, wire the field devices to the 18-point terminal block, which uses M3.5 screws for secure termination. Moreover, confirm that the input source matches the 100–120 V AC rating before powering the circuit.

After wiring, check each channel using the front-panel LED indicators. Each point has an LED that lights when the input is ON. Finally, set any needed interrupt options through the FA-M3 programming software, since the F3XA16-1N supports per-point interrupt configuration.

Packaging List

• F3XA16-1N Input Module × 1

• Terminal Block Cover × 1

• Installation Guide × 1

Shipping: Fedex, UPS, DHL

FAQ

Q1: How does the F3XA16-1N differ from the F3XA16-2N?
The F3XA16-1N is rated for 100–120 V AC input, while the F3XA16-2N accepts 200–240 V AC. Both offer sixteen points with photocoupler isolation, but they target different supply voltages.

Q2: Can all sixteen inputs on the F3XA16-1N be active at once?
Yes. The module supports a maximum simultaneous ON ratio of 100%, so all sixteen points can be energized together without performance loss.

Q3: How are the commons arranged on the F3XA16-1N?
The F3XA16-1N provides 8 points per common, giving two common groups across the sixteen inputs. This layout offers wiring flexibility for separate field circuits.

Q4: What response time options does the F3XA16-1N provide?
OFF-to-ON is selectable at 15 ms max or 30 ms. ON-to-OFF is selectable at 25 ms max or 40 ms. Users choose the setting that best matches noise conditions and speed needs.

Q5: Does the F3XA16-1N support interrupt inputs?
Yes. Interrupt specification is available for each input point individually. This feature lets the CPU respond rapidly to short pulses or urgent field events.