GE IC695ACC402 Memory Backup Module – Obsolete PACSystems RX3i Spare Part

Technical Dossier

Product Details And Specifications

GE IC695ACC402 Memory Backup Module – Obsolete PACSystems RX3i Spare Part

For plants running GE PACSystems RX3i infrastructure, the cost of a full control system upgrade — new CPUs, new I/O racks, new HMI integration, re-commissioning, and operator retraining — routinely exceeds several hundred thousand USD per line. The IC695ACC402 is a fraction of that cost. DriveKNMS maintains RFQ-reviewed sourcing status of this module specifically to serve facilities that cannot afford to treat a single spare part shortage as a trigger for capital expenditure.

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters not independently verified by DriveKNMS. Buyers should cross-reference GE PACSystems RX3i Hardware Reference Manual (GFK-2314) for full electrical specifications before installation.

Solving the Discontinued Hardware Crisis

The IC695ACC402 is not a peripheral convenience item. It is the mechanism by which the RX3i CPU retains its program and data memory during power loss. In facilities where the CPU rack is not backed by a UPS, or where UPS maintenance has lapsed, this module is the last line of defense against a cold-start scenario. A cold start on a complex RX3i system — one with custom function blocks, motion coordination, or multi-rack I/O — can require hours of engineering time to restore to a verified operational state.

Extending Automation Asset Life by 5–10 Years: A Maintenance Strategy for Plant Management

The decision to retire a GE PACSystems RX3i system is rarely driven by the platform's technical limitations. It is driven by the inability to source spare parts. When a critical module becomes unavailable, procurement teams escalate to engineering, engineering escalates to management, and management faces a forced capital decision under time pressure — the worst possible conditions for a sound investment choice.

A structured spare parts strategy changes this dynamic entirely. The following approach has been used by maintenance managers across heavy industry to extend RX3i system life by 5–10 years beyond the point at which standard distribution support ends:

Condition & Reliability Assurance

DriveKNMS applies a 5-step quality process to all hard-to-find and legacy modules before they are offered for sale:

1. Visual inspection: Physical examination for pin corrosion, board contamination, cracked solder joints, and housing damage. Any unit with visible corrosion on battery contacts or connector pins is rejected.
2. Electrolytic capacitor assessment: Modules from older production runs are evaluated for capacitor condition. Capacitors showing signs of bulging, leakage, or ESR degradation are flagged and the unit is either reconditioned or removed from inventory.
3. Firmware version verification: Where applicable, firmware revision is confirmed and documented. Modules are not offered if firmware cannot be verified.
4. Functional test: Modules are bench-tested in a compatible RX3i rack configuration to confirm correct operation before dispatch.
5. Packaging and ESD protection: All modules are shipped in anti-static packaging with physical protection appropriate for international freight.

Key Features for System Maintenance

• Drop-in replacement: The IC695ACC402 installs directly into the existing RX3i CPU slot without hardware modification.
• No reprogramming required: Replacing this module does not require reloading the CPU program, provided the CPU itself retains its memory. The module restores battery backup function immediately upon installation.
• Avoids engineering rework costs: A verified replacement eliminates the need for control system redesign, I/O remapping, or HMI reconfiguration — costs that accompany any platform migration.
• Maintains production continuity: Keeping a spare IC695ACC402 on hand means a module failure becomes a scheduled swap, not an emergency shutdown.

Can this module be used with all RX3i CPU variants?
The IC695ACC402 is designed for use with GE PACSystems RX3i CPU modules. Compatibility should be confirmed against your specific CPU part number and the GE PACSystems RX3i Hardware Reference Manual before installation.