The GE Fanuc IC694PWR331, also cataloged as the IC694PWR331 Expansion Power Supply, operates as a dedicated hardware component for 24 VDC voltage conversion and backplane power distribution within PACSystems RX3i platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC694PWR331 |
| Brand | GE Fanuc |
| Origin | USA / As specified on hardware label |
| Weight | Shipping weight: 2.0 kg |
| Dimensions | Standard single RX3i power supply slot footprint |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Input power source: 24 VDC |
| Power Capacity | 30 W total high capacity output |
| Output Ratings | 30 W @ 5 VDC; 15 W @ 24 VDC Relay; 20 W @ 24 VDC Isolated |
| 24 VDC Output Current | 0.8 A capacity |
| Backplane Support | Remote bases only |
| Module Type | Expansion / Remote power supply |
Backplane Bus Communication Velocity and I/O Density Scaling
The IC694PWR331 delivers high-capacity DC power directly to the backplane bus of RX3i remote expansion racks, supplying up to 30 W total distributed power across internal logic circuits. By supplying 5 VDC for module bus execution alongside 24 VDC isolated and relay power outputs, the supply maintains backplane bus communication velocity and supports high I/O density scaling across populated expansion slots. Designed exclusively for remote base configurations, it isolates field disturbance potential while stabilizing logic power levels.
Frequently Asked Questions
Q: Can the IC694PWR331 power supply be installed in a primary PACSystems RX3i CPU rack?
A: No, the IC694PWR331 is designed for backplane support on remote bases only.
Q: What are the output power allocations available from the IC694PWR331?
A: The unit supplies a maximum total output of 30 W, allocated up to 30 W at 5 VDC, 15 W at 24 VDC relay power, and 20 W at 24 VDC isolated power with a 0.8 A output current capacity.
Field Installation Guidelines
- Isolate all incoming 24 VDC power sources prior to inserting or removing the power supply module from the left-most power supply slot of the remote baseplate.
- Connect input wiring securely to designated 24 VDC power terminals, ensuring correct polarity and proper frame ground conductor landing.
- Maintain clear vertical ventilation channels around the module housing to allow free ambient air movement for thermal dissipation.
- Verify that total power consumption of all populated I/O cards in the remote rack does not exceed the 30 W total output threshold of the supply.
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