Yokogawa F3WD64-4P I/O Module 32-Point

Yokogawa F3WD64-4P: Compact 12V DC Discrete I/O for FA-M3 Systems

Product Introduction

This module provides a dense interface solution for automation applications requiring 12V DC signal handling. Engineers and technicians frequently select the F3WD64-4P when they need to consolidate both input and output wiring into a single slot within a Yokogawa FA-M3 rack. Specifically, the unit houses 32 input points and 32 output points, using two 40-pin connectors for external wiring.

Technical Specifications

The input block accepts a rated voltage of 12V DC with an operating range of 10.2 to 13.2V DC. Each input point draws approximately 4.1 mA. Moreover, the inputs are photocoupler isolated and arranged in groups of 8 points per common. The ON threshold sits at 8V DC minimum, while the OFF threshold is 3.4V DC maximum. Additionally, input response time is configurable via software sampling settings (0μs, 62.5μs, 250μs, or 1ms), allowing tuning for noise immunity or speed.

The output section uses sink-type transistor contacts. It shares the same 12V DC rated load voltage and provides a maximum load current of 0.1 A per point and 0.4 A per common. Furthermore, the F3WD64-4P includes essential protective features: a short-circuit protector limits current or shuts down the output, and an overheat protector disables the channel if thermal limits are exceeded. Response time for outputs reaches 1 ms maximum in both ON and OFF transitions.

Mechanical and Environmental Parameters

• Isolation: 1500 V AC for one minute between external terminals and internal circuitry.

• Current Consumption: 170 mA at 5V DC (internal bus).

• External Supply: 12V DC, 55 mA.

• Operating Temperature: 0 to 55°C.

• Storage Temperature: -20 to 75°C.

• Humidity: 10 to 90% RH (non-condensing).

• Weight: 120 g (module only).

• Connectors: Two 40-pin connectors.

Installation Guide

First, ensure the FA-M3 power supply is off and lockout procedures are followed. Next, align the F3WD64-4P with the guide rails of the I/O slot and insert it firmly until the connector engages. Then, wire the external 12V DC field power and signal lines to the mating 40-pin connectors. Verify that the common lines are correctly grouped (8 points per common) to prevent overload. Finally, apply power and check the status LEDs. A front-panel switch lets you monitor either input or output status.

Packaging List

• Yokogawa F3WD64-4P Module × 1

• Anti-static protective bag

• Cardboard shipping box with foam padding

Shipping
We ship globally via Fedex, UPS, DHL. Orders are typically processed within 1-2 business days.

FAQ

Q1: What is the main difference between the F3WD64-4P and the F3WD64-3P?
A1: The primary distinction is the rated voltage. The F3WD64-4P operates at 12V DC, whereas the F3WD64-3P version is designed for 24V DC systems. Additionally, the 4P model permits a 100% simultaneous ON ratio for inputs.

Q2: Does this module support interrupt inputs?
A2: No. According to the Yokogawa specification for the F3WD64-4P, the input block does not have interrupt functionality. For interrupt-driven applications, you would need a dedicated high-speed input module.

Q3: What happens to the outputs if the PLC program stops?
A3: The behavior depends on the CPU type. With a sequence CPU, the default is RESET, but it can be configured globally. With a BASIC CPU, the status is always HOLD. For an OS-free CPU, the initial value is HOLD, configurable per 8-point group.

Q4: Can I use this module to drive a 24V DC solenoid directly?
A4: No. The F3WD64-4P has a maximum load voltage of 13.2V DC. Driving a 24V load requires an interposing relay or a different output module rated for 24V DC.

Q5: What type of protection is built into the output circuit?
A5: The output block features a short-circuit protector (which limits current or shuts down output) and an overheat protector (which shuts down output). It also includes an active clamp circuit for surge protection.