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IC698PSA100
IC698PSA100
IC698PSA100

GE IC698PSA100 PACSystems RX7i 100 W Power Supply

  • Model: IC698PSA100
  • Brand: GE Fanuc (Now Emerson Automation)
  • Series: PACSystems RX7i
  • Core Function: Supplies regulated backplane power
  • Product Type: PLC Power Supply Module
  • Key Specs: 100 W output, 85–264 VAC or 100–150 VDC input, +5 VDC / +12 VDC / -12 VDC outputs
  • Condition: New Original / New Surplus
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Description

3. Key Technical Specifications

Parameter Value
Manufacturer GE Fanuc / Emerson
Model IC698PSA100
Product Series PACSystems RX7i
Product Type Rack Power Supply Module
Rated Input Voltage 120/240 VAC or 125 VDC
Input Voltage Range 85–264 VAC, 47–63 Hz; 100–150 VDC
Maximum Output Power 100 W
+5 VDC Output 20 A
+12 VDC Output 2 A
-12 VDC Output 1 A
Power Factor Correction Built-in (AC operation)
Protection Overcurrent, overvoltage, overtemperature
Ride-Through Time Minimum 15 ms
Holdup Warning (ACFAIL#) Minimum 5 ms before output falls out of specification
Installation Slot 0 (leftmost position) in RX7i main rack
Operating Temperature 0 °C to +60 °C (no forced-air cooling required)

The IC698PSA100 is the standard 100 W power supply for the PACSystems RX7i platform. It provides regulated +5 VDC, +12 VDC, and -12 VDC outputs to the backplane while supporting universal AC input or 125 VDC operation. Unlike the higher-capacity IC698PSA350, this model does not require a rack-mounted fan tray for full-rated output.

 

4. Product Introduction

The GE IC698PSA100 is a rack-mounted power supply designed for the PACSystems RX7i control platform. Installed in the dedicated power supply slot, it distributes regulated operating voltages and system logic signals to CPUs, communication modules, and I/O modules throughout the RX7i backplane.

Its universal input design accepts either industrial AC power or 125 VDC control power, making it suitable for process industries, utilities, and manufacturing facilities. Integrated protection against overcurrent, overvoltage, and overtemperature helps prevent secondary damage during abnormal operating conditions.

IC698PSA100
IC698PSA100
IC698PSA100
IC698PSA100

 

5. Installation & Configuration Guide

 

Stage 1 – Pre-Installation Preparation (10 Minutes)

⚠️ Safety First

  1. Notify plant operations of the scheduled shutdown.
  2. Bring the controlled equipment to a safe operating condition.
  3. Apply Lockout/Tagout procedures.
  4. Disconnect incoming AC or DC power.
  5. Wait at least 5 minutes before servicing the rack.

Tools Required

  • Grounded ESD wrist strap
  • PH1 screwdriver
  • Fluke 115 digital multimeter
  • Wire identification labels
  • Torque screwdriver
  • Smartphone for documentation

Data Backup

Before replacing the module:

  • Photograph all incoming power wiring.
  • Record the rack configuration.
  • Calculate total rack current requirements.
  • Record installed CPU and communication modules.
  • Verify protective earth connections.

 

Stage 2 – Removing the Old Module (5 Minutes)

  1. Confirm incoming power is isolated.
  2. Disconnect input wiring.
  3. Remove the retaining hardware.
  4. Slide the module straight out of Slot 0.
  5. Inspect:
  • Backplane connector
  • Input terminals
  • Protective earth connection
  • Signs of overheating
  • Burned contacts

⚠️ Retain the original module until the replacement has completed full system commissioning.

 

Stage 3 – Installing the New Module (10 Minutes)

  1. Wear a grounded ESD wrist strap.
  2. Verify the replacement catalog number:

IC698PSA100

  1. Install the module fully into the leftmost rack position.
  2. Tighten the retaining hardware.
  3. Reconnect input wiring.
  4. Verify protective earth continuity.

Installation Checklist

  • Correct catalog number
  • Module fully seated
  • Earth connection verified
  • Input voltage confirmed
  • Wiring torque checked

 

Stage 4 – Power-On & Functional Testing (15 Minutes)

Pre-Power Checks

  • Measure incoming supply voltage.
  • Verify no short circuit exists on the output.
  • Confirm earth continuity.
  • Inspect terminal tightness.

Startup Procedure

  1. Apply input power.
  2. Turn the front-panel logic switch ON.
  3. Verify power LEDs.
  4. Confirm CPU startup.
  5. Measure:
  • +5 VDC
  • +12 VDC
  • -12 VDC
  1. Verify all installed modules initialize correctly.
  2. Perform a complete PLC functional test.

⚠️ Troubleshooting Note

If the rack does not power correctly:

  • Verify input voltage.
  • Check rack loading.
  • Inspect the backplane connector.
  • Verify the ACFAIL# indication.
  • Confirm no downstream module is creating an overload.

 

SOP Quality Verification

1. Inbound Inspection & Traceability

  • Verify OEM labels and serial numbers.
  • Inspect for corrosion, scratches, UV discoloration, and rework marks.
  • Confirm catalog number and hardware revision.
  • Review available traceability documentation.

2. Live Functional Testing

Testing should be completed using a genuine PACSystems RX7i rack.

Verification includes:

  • Power-on self-test
  • Output voltage verification
  • Full rack startup
  • CPU initialization
  • Continuous operation exceeding 24 hours
  • Thermal monitoring under rated load
  • Generation of a formal functional test report

Test photographs and videos should be available upon request.

3. Electrical Parameter Testing

  • 500 V insulation resistance test (>10 MΩ)
  • Ground continuity verification
  • Output voltage measurement under load
  • Input current measurement

4. Configuration Verification

  • Record hardware revision.
  • Verify output voltage stability.
  • Document test measurements.

5. Final QC & Packaging

  • QC inspector sign-off
  • Anti-static ESD packaging
  • Bubble-wrap protection
  • Heavy-duty corrugated carton
  • QC Passed label with inspection date

 

Technical Pitfalls & Survival Guide

❗ Calculate Rack Power Before Replacement

One mistake I still see is replacing the power supply without recalculating rack consumption.

A system that originally contained only a CPU and several digital I/O modules may later include Ethernet interfaces, reflective memory modules, and analog cards. Those additions increase the +5 VDC load considerably. Leave at least a 20% power margin rather than operating continuously at maximum capacity.

❗ The ON/OFF Switch Does Not Isolate Incoming Power

The front-panel ON/OFF switch only enables or disables the DC outputs.

Incoming AC or DC voltage remains present inside the module whenever external power is connected. Always isolate the external supply before servicing the power supply.

❗ Install the Module Only in Slot 0

The IC698PSA100 must be installed in the dedicated leftmost power supply slot.

I’ve seen replacement attempts where technicians tried installing it in a standard module position after working on other PLC families. The rack will not operate correctly because the power supply connector is unique.

❗ Check ACFAIL# During Power Issues

The RX7i power supply asserts the ACFAIL# signal before the output voltages fall below specification.

If the CPU records unexpected shutdowns, monitor the ACFAIL# indication instead of assuming the CPU is defective. In several field cases, the root cause was unstable incoming utility power rather than a failed PLC component.

❗ Electrostatic Discharge (ESD)

Although this module is a power supply, it contains monitoring and control electronics that are vulnerable to electrostatic discharge.

Always wear a grounded wrist strap and place the module on an ESD-safe work surface before installation.

Keep these checks in mind and you’ll eliminate most startup problems before they become extended maintenance outages.

 

6. Frequently Asked Questions (FAQ)

Q1. What is the function of the IC698PSA100?

The IC698PSA100 converts 85–264 VAC or 100–150 VDC input into regulated +5 VDC, +12 VDC, and -12 VDC outputs that power the PACSystems RX7i backplane and all installed modules.

Q2. Can I hot-swap the IC698PSA100?

No.

The power supply is not designed for hot replacement. Remove incoming power and follow Lockout/Tagout procedures before removing or installing the module.

Q3. Does the IC698PSA100 require forced-air cooling?

No.

The 100 W IC698PSA100 delivers its full rated output over 0 °C to +60 °C without a fan tray. Only the 350 W IC698PSA350 requires forced-air cooling for full-capacity operation.

Q4. Why does the rack still contain hazardous voltage when the front switch is OFF?

The front-panel switch disables the regulated outputs only. It does not disconnect the incoming AC or DC supply. Always isolate external power before opening the cabinet or servicing the module.

Q5. Why won’t my RX7i rack start after replacing the power supply?

Common causes include:

  • Incorrect input voltage
  • Excessive rack loading
  • Loose backplane connection
  • Improper protective earth wiring
  • Internal fault in another installed module

In practice, downstream faults are often mistaken for a failed power supply.

Q6. What inspections should I request before shipment?

For production-critical applications, request:

  • OEM serial number verification
  • Visual inspection for corrosion and connector damage
  • Functional testing on a genuine RX7i rack
  • Output voltage verification under rated load
  • Continuous 24-hour burn-in
  • Insulation resistance testing
  • Hardware revision documentation
  • ESD-safe packaging
  • Complete QC test report

Requesting load-test records and startup photographs before shipme

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