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The GE Fanuc IC695ACC400, also cataloged as the IC695ACC400 CPU Energy Pack, operates as a dedicated hardware component for backup power preservation during power loss within PACSystems RX3i platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC695ACC400 |
| Brand | GE Fanuc Emerson |
| Origin | United States |
| Weight | 0.69 lbs (0.31 kg) |
| Dimensions | 140 mm H x 124 mm D x 25.4 mm W |
| Operating Temp | 0 - 60 deg C |
| Power Consumption | Charged via 24 VDC backplane rail |
| Compatible Controllers | CPE302, CPE305, CPE310 |
| Function | RAM-to-Flash non-volatile memory backup |
| Dedicated Cable | IC695CBL001 (3 ft / 0.91 m length) |
| Cable Voltage Rating | 300 VAC |
| Cable Connector Type | Samtec IPD1-04-D-K |
| Life Expectancy | 10+ years at 0 - 50 deg C / 4.5 years at 60 deg C |
| Diagnostics | Charging, Fault, Low capacitance, Charged LEDs |
| Compliance | EU RoHS Directive 2002/95/EC / 2011/65/EU |
Firmware Flash Compatibility and Energy Storage Execution
The energy pack relies on internal capacitor storage cells to maintain sufficient operational voltage during a primary power failure. Upon voltage drop detection, the hardware holds the CPU logic line active, forcing the immediate transfer of volatile RAM data into the non-volatile flash storage block. The subsystem status, including capacitance health tracking, is updated inside the CPU status register, which requires exact firmware flash compatibility to properly decode low capacitance registers and trigger diagnostic faults.
Frequently Asked Questions
Q: Can the IC695ACC400 module be hot-swapped while the RX3i PLC is running?
A: No. Disconnecting the IC695CBL001 cable or removing the energy pack while the CPU is powered disrupts the 24 VDC charging and monitoring circuit, which immediately flags a hardware configuration fault in the controller and leaves the RAM unprotected against a sudden power drop.
Q: How does operating temperature affect the thermal degradation and lifespan of the module?
A: The storage capacitors are highly sensitive to thermal profiles. Continuous operation between 0 and 50 deg C yields a service life exceeding 10 years, whereas sustained operation at elevated temperatures up to 60 deg C accelerates internal degradation, lowering life expectancy to 4.5 years.
Field Installation Guidelines
- Mechanical Mounting: Mount the unit structurally on the left side of the adjacent module (typically the primary power supply casing) within the RX3i rack layout.
- Cable Connection: Secure the Samtec IPD1-04-D-K connector end of the IC695CBL001 cable into the mating port on the bottom interface of the compatible CPE302, CPE305, or CPE310 processor.
- Bend Radius and Routing: Maintain standard industrial clearance for the tinned copper PVC-insulated cable, ensuring it does not wrap around or make physical contact with high-temperature heat sink fins or AC power lines.
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