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3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Nominal Input Voltage | 120/240 VAC or 125 VDC |
| Input Voltage Range (AC) | 85 to 264 VAC |
| Input Voltage Range (DC) | 100 to 300 VDC |
| Input Power | 100 VA max (VAC); 50 W max (VDC) |
| Inrush Current | 4 A peak, 250 ms maximum |
| Total Output Power | 30 W maximum (all outputs combined) |
| +5 VDC Output | 30 W maximum (5.0–5.2 V, 5.1 V nominal) |
| +24 VDC Relay Output | 15 W maximum (24–28 V) |
| +24 VDC Isolated Output | 20 W maximum (21.5–28 V) |
| Overvoltage Protection (+5 V) | 6.4 to 7 V |
| Overcurrent Protection (+5 V) | 7 A maximum |
| Hold-up Time | 20 ms minimum |
| Status LEDs | PWR, OK, RUN, BATT |
| Serial Port | RS-485 (for programmer / Hand-Held Programmer) |
| Mounting Location | Leftmost slot of any Series 90-30 baseplate |
4. Product Introduction
The GE Fanuc IC693PWR330 is a high-capacity 30-watt power supply for the Series 90-30 PLC. It accepts a wide-range 85–264 VAC or 100–300 VDC input and supplies three regulated outputs: +5 VDC (full 30 W available), +24 VDC Relay for relay-output modules, and +24 VDC Isolated for field devices and certain I/O modules. Total combined output power must not exceed 30 W.
Compared with the standard IC693PWR321, the PWR330 allows the entire 30 W budget to be drawn from the +5 V rail, making it the preferred choice for densely populated racks or systems with high backplane current demand. It installs in the leftmost slot of any 5- or 10-slot baseplate and includes status LEDs plus an RS-485 serial port. It remains a direct replacement for existing Series 90-30 systems that need the higher +5 V capacity.
IC693PWR330
IC693PWR330
IC693PWR330
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| PWR LED off, no outputs | Input voltage out of range or wiring error | ✅ High | Measure AC/DC input at terminals; confirm correct range and polarity | Correct input voltage or wiring |
| OK LED off / system faulted | Overload, short, or internal fault | ✅ High | Measure +5 V, +24 V Relay, and Isolated rails under load | Remove modules one at a time to isolate overload |
| RUN LED off while CPU tries to run | Insufficient +5 V or hold-up problem | ✅ Medium | Scope +5 V rail during power-up and under load | Verify total load ≤30 W; check for intermittent input dips |
| BATT LED on | Low or missing CPU backup battery | ❌ Low (CPU battery) | Check CPU battery voltage | Replace CPU battery (IC693ACC301); not a power-supply fault |
| Outputs drop under load | Exceeding 30 W / 15 W / 20 W limits | ✅ High | Calculate total module current draw on each rail | Reduce load or redistribute modules |
| Will not start on marginal voltage | Input near lower limit | ✅ Medium | Measure input voltage at the moment of power application | Ensure AC ≥85 V or DC ≥100 V at start-up |
If the supply continues to fault after these checks, photograph the LED faceplate, measure all three output rails, and capture the PLC fault table before contacting technical support.
6. Frequently Asked Questions (FAQ)
Q: Is the IC693PWR330 still manufactured? A: No. The Series 90-30 platform is mature. Available units are New Surplus or tested refurbished stock. Keep spares if the system is expected to remain in service long-term.
Q: What is the main advantage over the IC693PWR321? A: The PWR330 can deliver the full 30 W from the +5 V rail. The PWR321 is limited to 15 W on +5 V. Use the PWR330 for racks with high backplane current demand.
Q: Can I use DC input on this supply? A: Yes. It accepts 100–300 VDC in addition to 85–264 VAC. Nominal rating is 125 VDC.
Q: Does the total output still have a 30 W limit? A: Yes. Even though +5 V can take the full 30 W, the sum of +5 V + Relay + Isolated must not exceed 30 W.
Q: Where does it mount? A: Always in the leftmost slot of the baseplate. It will not fit or function in any other slot.
Q: Does it include a battery? A: No. The BATT LED monitors the CPU’s backup battery, not a battery inside the power supply. Replace the CPU battery (IC693ACC301) when the BATT LED is on.
Q: Can this module be hot-swapped? A: No. Power down the entire rack before removing or inserting the power supply. Hot-swapping risks damage to the backplane and all modules.
Q: Why is New Surplus priced lower than original list? A: These are unused original modules from OEM or distributor surplus inventory. Each unit is visually inspected, powered on a genuine Series 90-30 rack, and verified for correct output voltages and LED status before shipment. Test documentation is available on request.
