IC695PSA040 GE Fanuc Emerson RX3i PACSystems 40W Power Supply Module

Product Overview

The IC695PSA040 is a 40-Watt multi-purpose base power supply module within the Emerson / GE Fanuc PACSystems RX3i Series. Operating from universal AC or DC line inputs, it converts incoming supply voltage into regulated DC power outputs required by local backplane modules. The unit delivers +5.1 VDC and +3.3 VDC to drive backplane logic circuits, alongside +24 VDC relay power to energize external field outputs. Engineered for high operational availability, it features a rugged front-panel ON/OFF control switch and diagnostic LEDs.

Technical & Output Specifications

System Constraints & Mechanical Characteristics

Target Applications & Hardware Diagnostics

The IC695PSA040 serves central processing racks in power generation plants, water treatment systems, and continuous manufacturing facilities. Maintenance technicians utilize its four front-panel diagnostic LEDs to isolate power faults quickly. An active P/S Fault or Over Temperature LED indicates thermal saturation or internal component degradation. An active Overload LED alerts operators that connected I/O cards exceed the 40 W total output envelope, signaling a need to redistribute modules into expansion chassis.

Global PLC Spare HUB's Insight

During system retrofits on older plant racks, field engineers occasionally attempt to install the IC695PSA040 alongside another power module in the same universal base to boost total wattage. Because this standard 40W unit lacks load-sharing diodes, placing two in parallel creates reverse-current faults. To expand system capacity without tripping internal protection, engineers must relocate high-draw analog or motion cards into expansion racks powered by their own dedicated supplies.

Model Selection Comparison & Technical Recommendations

Evaluate power requirements within the PACSystems RX3i Series platform prior to ordering:

• Standard 40W Unit: The IC695PSA040 provides 40 Watts of non-redundant base power for standard density CPU and discrete I/O racks.
• High-Capacity / Redundant Options: For heavy analog racks or critical applications requiring redundant supply backup, high-capacity or load-sharing variants must be specified instead.

Selection Tip: Always tally the total backplane current draw (+3.3V, +5.1V, and +24V relay) for all planned cards using machine design software. If the calculated consumption exceeds 40 Watts, migrate additional I/O to expansion chassis rather than exceeding the load rating of the primary base supply.

Warranty, Dispatch & Packaging Guarantees

• Product Condition: 100% Brand New and Original in Factory Sealed Packaging
• Warranty Terms: Covered by a full 12 Months factory warranty
• Order Processing Speed: Ships out within 24 to 48 hours following order confirmation
• Express Logistics Carriers: Worldwide express delivery via FedEx, UPS, and DHL

Frequently Asked Questions (FAQ)

Q: Does flipping the front panel ON/OFF switch isolate incoming AC/DC mains line voltage?

A: No, the toggle switch disables internal DC outputs only; dangerous line potential remains present at the input wiring terminals.

Q: Can this unit operate on 125 VDC station battery banks without hardware jumper adjustments?

A: Yes, its universal front-end automatically accepts 100 to 300 VDC or 85 to 264 VAC without manual range configuration.

Q: What happens if connected backplane modules demand more than 6 Amperes on the +5.1 VDC rail?

A: The Overload LED illuminates, and internal over-current protection shuts down DC outputs to prevent permanent module damage.

Q: Is this power supply compatible with older Series 90-30 expansion backplanes?

A: No, it mounts exclusively into RX3i universal backplanes (IC695 series) and cannot be installed in legacy IC693 racks.

Q: How can technicians verify if a thermal shutdown has occurred in an unventilated cabinet?

A: Inspect the front faceplate; an illuminated Over Temperature LED confirms thermal trip, requiring enclosure cooling before resetting the power switch.

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