Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | IC698PSA100E |
| Product Family | PACSystems RX7i |
| Module Type | Rack power supply |
| Nominal Input | 120/240 VAC or 125 VDC |
| AC Input Range | 85–264 VAC |
| DC Input Range | 100–150 VDC |
| AC Frequency | 47–63 Hz |
| Total Output Power | 100 W |
| +5 VDC Output | Up to 20 A |
| +12 VDC Output | Up to 2 A |
| -12 VDC Output | Up to 1 A |
| Mounting | RX7i main rack, leftmost power-supply position |
| Cooling | Natural convection for the 100W supply |
| Operating Temperature | 0–60°C |
| Architecture | RX7i VME-based rack system |
The RX7i documentation identifies the IC698PSA100 family as a 100W power supply accepting 85–264 VAC at 47–63Hz, with +5V, +12V, and -12V outputs rated at 20A, 2A, and 1A respectively.
Product Introduction
The GE Fanuc IC698PSA100E is a 100W rack power supply for the PACSystems RX7i PLC platform. It converts incoming AC or high-voltage DC power into the regulated +5VDC, +12VDC, and -12VDC rails required by modules installed on the RX7i backplane. The unit installs directly into the dedicated power-supply position at the left side of the RX7i rack.
From a maintenance perspective, this is a system-level power component rather than an ordinary field power supply. Its output capacity has to be evaluated against the actual rack load. The 100W rating is shared across the three output rails, so a system drawing heavily from the +5V rail should not be evaluated simply by adding the individual current ratings. The RX7i documentation also specifies electronic overcurrent and overvoltage protection and ride-through capability for short input interruptions.
IC698PSA100E
Application Scenarios & Field Pitfalls
Engineering Pain Point
A failing RX7i power supply can produce symptoms that look like CPU, backplane, or I/O failures: unexpected resets, modules dropping offline, diagnostic faults, or intermittent communication problems. Replacing the supply without checking the rack load and input wiring can leave the underlying problem unresolved.
Typical Applications
- Process control PLC racks — powering RX7i CPU, communications, and I/O modules.
- Power and utility systems — maintaining legacy RX7i controller racks.
- Manufacturing automation — supplying VME-based control and I/O assemblies.
- Oil, gas, and heavy industrial systems — maintaining installed RX7i control cabinets where the original architecture remains in service.
Technical Pitfalls to Avoid
- Do not substitute an IC698PSA350 simply because it has a higher wattage. The 350W supply has substantially different current capacity and cooling requirements. The RX7i documentation identifies the PSA350 as requiring forced-air cooling, while the 100W supply is designed for operation without forced-air cooling.
- Check the input type before wiring. The PSA100 family accepts 85–264VAC or 100–150VDC. Do not interpret the 125VDC rating as permission to apply arbitrary DC voltages outside that specified range.
- Verify the complete rack load. The +5V rail is rated up to 20A, but the total supply output is limited to 100W. The actual current demand of every installed module should be calculated before approving the replacement.
- Match the revision when possible. Current supplier documentation identifies IC698PSA100E as the Series E/Rev. E version. Other PSA100 revisions exist, so purchasing should specify the complete suffix rather than only “IC698PSA100.”
Related Products
- IC698PSA100 — Base RX7i 100W power-supply family; verify revision before treating it as an exact replacement.
- IC698PSA100B — Later PSA100 revision; same general 100W power-supply class but revision should be checked against the installed system.
- IC698PSA100C — PSA100 Series C revision.
- IC698PSA100D — PSA100 Series D revision.
- IC698PSA350 — 350W RX7i AC/DC power supply for higher rack loads; requires appropriate forced-air cooling.
- IC698PSD300 — 300W RX7i DC-input power supply; intended for a different input-power arrangement.
- IC698CPE010 — RX7i 300MHz CPU; typically powered from the same RX7i rack supply.
- IC698CPE020 — RX7i 700MHz CPU; higher-performance CPU requiring the appropriate rack power and cooling configuration.
- IC698CHS017 — RX7i 17-slot rear-mount rack used with RX7i power supplies and controller modules.
Procurement Check
Before purchasing an IC698PSA100E, verify:
- Exact nameplate: IC698PSA100E
- Series/revision: E
- RX7i main-rack application
- Incoming voltage: 85–264VAC or 100–150VDC
- Required +5V, +12V, and -12V load
- Total rack power demand versus the 100W capacity
- Rack fan/cooling arrangement
- Existing CPU and I/O module configuration
- Input terminal and grounding condition
- Whether the replacement is new, surplus, or refurbished
Bottom line: the IC698PSA100E is a 100W GE Fanuc PACSystems RX7i rack power supply, with +5VDC/20A, +12VDC/2A, and -12VDC/1A output capacity. The most important procurement check is not just the voltage rating; it is matching the RX7i rack architecture, total load, and exact PSA100 revision.
