The GE Fanuc IC695PSA140, also cataloged as the IC695PSA140 Multi-Purpose Power Supply, operates as a dedicated hardware component for internal backplane power distribution and load-sharing execution within PACSystem RX3i platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC695PSA140 |
| Brand | GE Fanuc / Emerson |
| Origin | USA / As specified on hardware label |
| Weight | 1.25 lbs (0.57 kg) |
| Dimensions | Standard single RX3i power supply slot footprint |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Input Power: 70 W maximum; Output Capacity: 40 W total |
| AC Input Voltage | 85 to 264 VAC (120/240 VAC nominal) |
| DC Input Voltage | 100 to 300 VDC (125 VDC nominal) |
| Output Rails | +5.1 VDC (30 W max, limited to 7 A); +3.3 VDC (limited to 10 A); +24 VDC relay output (30 W max) |
| Backplane Support | Universal Backplane only (IC695 catalog series) |
| Redundancy Support | Supports load sharing and N+1 redundancy (up to 4 modules per rack) |
| Diagnostic LEDs | Power, P/S Fault, Overtemp, Overload |
| Terminal Current Limit | 6 A per terminal |
Backplane Bus Communication Velocity and Firmware Flash Compatibility
The IC695PSA140 supplies stable regulated voltage rails directly across the RX3i Universal Backplane structure, accommodating high-speed logic execution without degrading backplane bus communication velocity. Onboard hardware overcurrent protection limits the +5.1 VDC output to 7 A and the +3.3 VDC output to 10 A, while an internal input line fusible link prevents destructive fault propagation across connected CPU and I/O modules. When configured in redundant configurations, a latched fault state isolates the failed supply to maintain uninterrupted processing and preserve firmware flash compatibility during hot-standby transitions.
Frequently Asked Questions
Q: How many IC695PSA140 power supply modules can be installed in a single RX3i backplane rack?
A: Up to four IC695PSA140 modules can be installed in a single RX3i PACSystem Universal Backplane for load sharing and power redundancy applications.
Q: How is a fault state cleared on the IC695PSA140 after an overload or overtemperature event latches the unit off?
A: Once a fault condition latches the module into the OFF state, input AC or DC supply power must be power-cycled to reset the internal protection logic and resume normal operation.
Field Installation Guidelines
- Verify that supply lines are de-energized before connecting AC (85 to 264 VAC) or DC (100 to 300 VDC) field wiring to the input terminal block.
- Ensure power wiring does not exceed the maximum rating of 6 A per terminal, using properly sized stranded copper conductors.
- Install the IC695PSA140 exclusively into designated power supply slots on an RX3i Universal Backplane (IC695 series).
- Maintain proper cabinet ventilation to ensure ambient operating temperatures remain within limits, preventing overtemp trip latches.
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