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The GE Fanuc IC695ACC403, also cataloged as the IC695ACC403 Energy Pack Module, operates as a dedicated hardware component for memory preservation and CPU backup execution within PACSystems RX3i platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC695ACC403 |
| Brand | GE Fanuc Emerson |
| Origin | United States |
| Weight | 0.75 lbs (0.34 kg) |
| Dimensions | Single-slot RX3i mounting footprint |
| Operating Temp | Standard industrial operating range |
| Power Consumption | 72 W SELV maximum power rating |
| Input Voltage | 24 VDC SELV nominal |
| Current Rating | 2.3 A |
| Mounting Type | DIN Rail mount |
| Connection Type | Screw terminals for DC power and grounding |
| Wire Size | #18 AWG |
| Enclosure / Environmental | Class I Division 2 hazardous locations (No water splash resistance) |
| Thermal Requirement | 25.4 mm (1 in) minimum clearance for heat dissipation |
| Status Diagnostics | Integrated LED status indicator |
Backplane Bus Communication Velocity and Firmware Flash Compatibility
The IC695ACC403 delivers regulated hold-up energy to the PACSystems RX3i CPU during main supply dropouts, preserving internal system registers and user application memory. By executing autonomous power transfer without disturbing backplane bus communication velocity, the unit prevents controller halt cycles during momentary voltage transients. Firmware flash compatibility across connected CPU modules ensures synchronized diagnostic reporting through the front-panel status LED, maintaining data integrity without hardware jumper reconfiguration.
Frequently Asked Questions
Q: What are the physical clearance requirements when mounting the IC695ACC403 module?
A: The IC695ACC403 requires a minimum clearance of 25.4 mm (1 in) around the unit to facilitate adequate thermal convection and heat dissipation.
Q: Can the IC695ACC403 module be exposed to direct water spray or high moisture environments?
A: No. The IC695ACC403 is not water splash resistant and must be installed inside a protective NEMA or IP-rated enclosure where ambient moisture is managed.
Q: What wire gauge is recommended for connecting power and ground to the screw terminals?
A: The screw terminals on the IC695ACC403 are designed to accept #18 AWG wiring for DC power inputs and frame grounding.
Field Installation Guidelines
- Disconnect 24 VDC primary power to the target enclosure before physically mounting the IC695ACC403.
- Snap the module securely onto the standard 35 mm DIN rail, maintaining a minimum 25.4 mm (1 in) clearance space above and below the housing for proper heat dissipation.
- Wire the 24 VDC SELV power source to the screw terminals using #18 AWG copper conductors, verifying correct wiring polarity.
- Connect the frame ground screw terminal directly to the central cabinet functional earth ground bus to ensure SELV electrical isolation compliance.
- Apply power to the system and observe the module diagnostic status LED to confirm nominal operating state and hold-up capability.
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