Product Core Brief
- Model: F3XD64-3N
- Brand: YOKOGAWA
- Series: FA-M3 PLC
- Core Function: 64-point 24V DC digital input module for FA-M3 PLC systems, used for status monitoring, interlock signals, and field device feedback.
- Product Type: FA-M3 Digital Input Module
- Key Specs: 64 inputs | 24V DC | Sink/source compatible | Connector-type terminal
- Condition: New Surplus / OEM Original
Key Technical Specifications
- Part Number:
- Product Type: Digital Input Module for FA-M3 PLC
- Input Points: 64 points
- Input Voltage: 24V DC
- Input Type: Sink/source compatible DC input
- Terminal Type: Connector-type interface
- Compatible Base Modules: FA-M3 F3BU series base modules (4/5/6/9/13/16-slot)
- Mounting: FA-M3 base module I/O slot
- Explosion Protection: None (standard industrial installation)
Product Introduction
The F3XD64-3N is a high-density digital input module for the YOKOGAWA FA-M3 PLC. It provides 64 points of 24V DC input, making it suitable for applications that require a large number of discrete status signals in a single module slot.
This module is commonly used for machine status monitoring, safety interlock feedback, valve position indication, conveyor zone detection, and general plant I/O consolidation. Its 64-point density helps reduce rack space and wiring complexity compared to lower-density input cards.
QA & Testing SOP
- Label verification: Confirm “F3XD64-3N” marking and check for signs of relabeling or mismatched suffix codes.
- Connector inspection: Inspect the front connector and backplane contacts for bent pins, oxidation, or contamination.
- Mechanical seating check: Confirm the module seats cleanly in the FA-M3 base without excessive force.
- Power-up recognition test: Install into a verified FA-M3 rack and confirm the CPU recognizes the module.
- Input channel check: Where test equipment is available, apply 24V DC signals to sample channels and verify correct input status in the PLC.
All units are handled with ESD-safe packaging and labeled with received condition, inspection date, and test status.
Installation Pitfalls & Guide
- ❗ Verify the input voltage. F3XD64-3N is a 24V DC input module; do not connect 12V, 48V, or AC signals without confirming compatibility.
- ❗ Check sink/source wiring. Incorrect common wiring can cause all channels in a group to read incorrectly.
- ❗ Use the correct connector. The module uses a connector-type interface; damaged or mismatched connectors are a common source of intermittent faults.
- ❗ Confirm the 5V DC backplane load. High-density modules increase backplane current consumption; verify the power supply capacity before adding multiple modules.
- ❗ Label field wiring before removal. With 64 points, miswiring after replacement is a frequent cause of extended downtime.
Replacement steps:
- Power down the FA-M3 rack and verify lockout/tagout.
- Disconnect the front connector and remove the failed module.
- Install the F3XD64-3N and confirm proper seating.
- Reconnect field wiring, power up, and verify input status in the PLC.
Technical FAQ
Wes do?
It is a 64-point 24V DC digital input module for the FA-M3 PLC, used to read discrete field signals into the controller.
How many inputs does it support?
64 digital input points.
Can it accept 12V DC signals?
F3XD64-3N is specified as a 24V DC input module. If 12V DC input is required, confirm the correct variant such as F3XD64-4F or F3XD64-6M before substitution.
Which base modules can it be installed in?
It can be installed in standard FA-M3 F3BU series base modules, including 4/5/6/9/13/16-slot configurations.
Do you test these before shipping?
Surplus stock is visually inspected, connector-checked, and rack-tested where a compatible FA-M3 setup is available. Any limitations are disclosed per lot.
