Product Core Brief

• Model: F3PU10-0N
• Brand: YOKOGAWA
• Series: FA-M3 PLC
• Core Function: AC power supply module that converts 100–240V AC input into 5V DC backplane power for FA-M3 CPU and I/O modules.
• Product Type: FA-M3 Power Supply Module
• Key Specs: 100–240V AC input | 5V DC / 2.0A output | For 4-slot and 6-slot FA-M3 base modules | FAIL-signal contact output
• Condition: New Surplus / OEM Original

Key Technical Specifications

• Part Number:
• Product Type: FA-M3 PLC Power Supply Module
• Input Voltage: 100 to 240V AC, single-phase, 50/60Hz
• Allowable Input Range: 85 to 264V AC, 50/60Hz ±3Hz
• Rated Output Voltage: 5V DC
• Rated Output Current: 2.0A
• Power Consumption: 35VA
• Inrush Current: 20A max at 120V AC; 45A max at 240V AC (Ta=25°C)
• Allowable Momentary Power Failure: 20ms
• FAIL-Signal Contact: Front terminal block, 24V DC, 0.3A (NO/NC available)
• Insulation Resistance: ≥5MΩ at 500V DC (AC terminals to FG)
• Withstand Voltage: 1500V AC for 1 minute (AC terminals to FG)
• Compatible Base Modules: F3BU04-0N (4-slot), F3BU06-0N (6-slot)
• Mounting: FA-M3 base module power-supply slot
• Explosion Protection: None (standard industrial installation)

Product Introduction

The F3PU10-0N is a standard AC power supply module for the YOKOGAWA FA-M3 PLC. It supplies regulated 5V DC power to the FA-M3 backplane, enabling the CPU, I/O modules, and communication modules to operate from a single-phase 100–240V AC source.

This unit is typically used in smaller FA-M3 racks with 4-slot or 6-slot base modules. Its built-in FAIL contact provides a simple way to report power-supply status to external alarms, relay circuits, or higher-level monitoring systems. For procurement teams, the key check is matching the base module size and confirming the 2.0A output is sufficient for the installed CPU and I/O load.

QA & Testing SOP

• Label verification: Confirm “F3PU10-0N” marking and check for signs of relabeling or mismatched suffix codes.
• Connector inspection: Inspect the backplane connector, front terminal block, and housing for bent pins, burns, or corrosion.
• Insulation check: Verify insulation resistance between AC input terminals and FG before energizing.
• Power-up test: Install into a compatible FA-M3 base, apply rated AC voltage, and confirm stable 5V DC output.
• FAIL-contact verification: Check the FAIL-signal contact operation under normal power and simulated fault conditions where test equipment is available.

All units are handled with ESD-safe packaging and labeled with received condition, inspection date, and test status.

Installation Pitfalls & Guide

• ❗ Match the base module. F3PU10-0N is specified for F3BU04-0N and F3BU06-0N bases; do not install it in larger racks designed for F3PU20/30/26/36-class supplies.
• ❗ Verify the 5V DC load. The 2.0A output must cover the CPU, I/O modules, and any backplane consumption; exceeding it can cause unstable operation.
• ❗ Check input voltage before energizing. Confirm the site supply is within 85–264V AC and properly grounded.
• ❗ Wire the FAIL contact correctly. The contact rating is 24V DC / 0.3A; do not use it to switch higher-voltage or higher-current loads.
• ❗ Secure the terminal block. Loose AC input wiring can cause arcing, voltage drop, or intermittent rack shutdown.

Replacement steps:

1. Power down the FA-M3 rack and verify lockout/tagout.
2. Disconnect AC input wiring and the FAIL-signal contacts.
3. Remove the failed power supply and inspect the base module connector.
4. Install the F3PU10-0N, reconnect wiring, and verify 5V DC output and CPU status after power-up.

Technical FAQ

Wes do?
It is an FA-M3 AC power supply module that provides 5V DC / 2.0A to the PLC backplane from a 100–240V AC source.

Which base modules can it be used with?
It is used with FA-M3 4-slot and 6-slot base modules, typically F3BU04-0N and F3BU06-0N.

Can it replace F3PU10-0S?
They are both FA-M3 AC power supplies for 4/6-slot bases, but the suffix may indicate mechanical or terminal differences. Confirm the mounting hardware and terminal type before cross-substitution.

What happens if the power supply fails?
The module provides a FAIL-signal contact output that can be wired to an external alarm or monitoring circuit.

Is this suitable for large FA-M3 racks?
No. Larger FA-M3 racks normally require F3PU20/30/26/36-class power supplies with higher current capacity.