Power Supply Module GE IC694PWR321B PACSystems RX3i
Manufacturer: GE Fanuc
-
Part Number: IC694PWR321B
Condition：New with Original Package
Product Type: Power Supply Modules
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Fanuc IC694PWR321B PACSystems RX3i Power Supply Module
The GE Fanuc IC694PWR321B, also cataloged as the IC694PWR321 Power Supply Module, operates as a dedicated hardware component for regulated DC power conversion and backplane voltage delivery within PACSystems RX3i control platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC694PWR321B |
| Brand | GE Fanuc |
| Origin | USA |
| Weight | 0.68 kg |
| Dimensions | 130 x 152 x 140 mm |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | 30 W total power output |
| Input Voltage Nominal | 120/240 VAC or 125 VDC |
| Input Voltage Range | 85-264 VAC or 100-300 VDC |
| Input Frequency | 47-63 Hz |
| DC Output Capacity | +5 VDC (15 W max), Isolated +24 VDC (20 W max), Relay +24 VDC (15 W max) |
| Input Isolation | 1500 VAC for 1 minute |
| Ride-Through Time | 20 ms minimum |
| Protection Limits | Internal 2 A input fuse, overvoltage, overcurrent, short-circuit protection |
Backplane Bus Communication Velocity and Firmware Compatibility
The GE Fanuc IC694PWR321B converts universal input power into stable, regulated internal DC rails (+5 VDC, isolated +24 VDC, and relay +24 VDC) to maintain backplane bus communication velocity across PACSystems RX3i universal backplanes. Integrated line filtration and 1500 VAC galvanic input isolation prevent electrical noise from disrupting high-speed parallel bus signals. The module manages system power sequencing during power-up and brownout conditions, ensuring proper firmware flash compatibility across installed central processing units and high-density I/O modules without triggering memory corruption or false diagnostic faults.
Frequently Asked Questions
Q: Does the IC694PWR321B support field hot-swapping while the backplane is energized?
A: No. Installing or removing the power supply module while primary voltage is applied can cause backplane arc flash and damage internal logic components. De-energize all primary input power before servicing.
Q: How does the power supply handle brief voltage sags on the AC input line?
A: Internal hold-up capacitors provide a minimum ride-through time of 20 ms at full 30 W output load, allowing the processor to continue execution across single-cycle voltage drops without resetting.
Q: What happens if the combined system load exceeds the 30 W rated output limit?
A: Internal overcurrent protection circuitry activates, dropping output voltage levels to prevent thermal stress. This state triggers a logic fault signal across the backplane to initiate a controller shutdown sequence.
Field Installation Guidelines
- Primary Supply De-energization: Turn off and lock out the main AC or DC feeder breaker before attaching input wiring to the module screw terminals.
- Slot Alignment: Slide the power supply module into the leftmost dedicated slot of the RX3i baseplate until the rear connector latches securely into the backplane frame.
- Terminal Wiring Separation: Route high-voltage AC or DC power conductors through separate conduit paths away from low-voltage signal cables to minimize electromagnetic coupling.
- Grounding Connection: Connect a 14 AWG protective earth conductor directly from the module frame ground terminal to the enclosure master ground bus bar.
- Convection Cooling Space: Maintain a minimum vertical distance of 100 mm above and below the module chassis to ensure unimpeded air circulation through the heat sink vents.