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The GE Fanuc IC693ACC400, also cataloged as the IC693ACC400 Expanded Battery Backup, operates as a dedicated hardware component for maintaining volatile memory retention during power interruptions within Series 90-30 PLC platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC693ACC400 |
| Brand | GE Fanuc Emerson |
| Origin | United States |
| Weight | 0.29 lbs (0.13 kg) |
| Dimensions | Standard Series 90-30 battery accessory module housing |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive power source (8.5 Ah cell capacity) |
| Battery Capacity | 8.5 Amp Hour (Ah) |
| System Compatibility | GE Fanuc Series 90-30 CPUs |
| Category | PLC Battery / Cable / Accessory |
Backplane Bus Communication Velocity and Memory Retention
The IC693ACC400 provides continuous auxiliary DC power to the CPU memory subsystem, preserving system configuration registers, user application code, and internal clock functions without impacting backplane bus communication velocity during main power loss. Maintaining stable backup power prevents RAM data corruption, eliminates program reload sequences upon system restart, and supports seamless operational continuity across firmware flash compatibility layers.
Frequently Asked Questions
Q: What is the primary function of the IC693ACC400 battery module in a Series 90-30 system?
A: The IC693ACC400 supplies 8.5 Amp Hour extended backup power to preserve volatile RAM user programs, system parameters, and internal register values when primary power is removed from the PLC rack.
Q: Can the IC693ACC400 battery unit be hot-swapped while the CPU is powered?
A: Yes. Replacing the battery while the CPU backplane power remains active ensures uninterrupted power to volatile RAM, preventing data loss during maintenance.
Q: What CPUs are compatible with this extended battery module?
A: The IC693ACC400 is designed specifically for integration with GE Fanuc Series 90-30 CPU modules.
Field Installation Guidelines
- Confirm main rack AC/DC power status before starting physical maintenance. If replacing an active battery, ensure the rack power supply is energized to protect RAM contents during replacement.
- Locate the designated battery connection terminal on the Series 90-30 CPU module or battery interface port.
- Align the IC693ACC400 connector keying to ensure correct wiring polarity before mating the connector.
- Press the quick-disconnect connector firmly into place until fully seated, securing the battery housing within its designated mounting bracket.
- Verify that the CPU battery low status indicator LED clears on the front diagnostic display panel upon successful connection.
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