Description
Key Technical Specifications
| Parameter | Value |
| Manufacturer | GE Fanuc / Emerson |
| Part Number | IC693PWR321 |
| Series | Series 90-30 |
| Module Type | Standard Baseplate Power Supply Module |
| Input Voltage Range | 85 to 264 V AC (47–63 Hz) / 100 to 300 V DC |
| Total Output Power | 30 Watts |
| 5 V DC Output Capacity | 15 A maximum (used by CPU, memory, and module logic) |
| 24 V DC Relay Output Capacity | 0.8 A maximum (supplies power to internal relay coils) |
| 24 V DC Isolated Output | 0.8 A maximum (used for powering input sensors/transmitters) |
| Inrush Current | 4 A peak for 20 ms maximum |
| Holdup Time | 20 ms minimum at full load |
| Battery Support | Holds 3 V DC Lithium RAM Backup Battery (IC693ACC301) |
| Mounting Position | Leftmost dedicated power supply slot of any Series 90-30 Baseplate |
Product Introduction & Supply Chain Strategy
The GE Fanuc IC693PWR321 is a 30 Watt standard power supply module engineered for Series 90-30 PLCs. Accepting a wide input range (85–264 V AC or 100–300 V DC), it converts raw line power into precise backplane logic power (+5 V DC) and field loop/relay power (+24 V DC) across standard CPU and expansion racks.
Securing the IC693PWR321 as New Surplus is a critical supply-chain safeguard for facilities operating Series 90-30 systems. Sourcing factory-fresh, uninstalled original inventory eliminates the high risks of electrolytic capacitor drying, voltage ripple instability, and thermal stress degradation common in second-hand power modules, guaranteeing clean logic power without expensive platform overhauls.
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- Execute Lock-Out/Tag-Out (LOTO) procedures on the AC/DC main line power source feeding the PLC enclosure.
- Verify that line supply voltage falls within 85–264 V AC or 100–300 V DC before wiring the terminal strip.
- Inspect and install a fresh 3 V DC RAM backup battery (IC693ACC301) in the front battery compartment if replacing a main CPU rack power supply.
Stage 2: Removal
- De-energize primary line power to the rack. Unclip the protective terminal cover and disconnect incoming line wires (L1, N/L2, Ground).
- Squeeze the module release levers at the top and bottom of the IC693PWR321 housing.
- Slide the power supply straight forward out of the leftmost baseplate slot.
Stage 3: Installation (Seat & Wire)
- Align the rear card edge of the replacement IC693PWR321 with the leftmost slot guide rails of the Series 90-30 baseplate.
- Press firmly on the top and bottom face of the module until both retaining latches click locked.
- Reattach incoming power leads (L1, N/L2, Ground) to the front screw terminals and secure the protective clear cover flap.
Stage 4: Power-On & Testing
- Reapply primary line power to the terminal block.
- Observe front panel LED indicators: verify that the “PWR” (Power) LED lights solid green, and “OK” / “RUN” status indicators show normal startup.
- Check 5 V DC and 24 V DC voltage levels across baseplate test points to confirm stable power regulation under full module load.

IC693PWR321

IC693PWR321
Firmware/Software Versions & Upgrade Notes
- Software Configuration: The IC693PWR321 is a passive hardware power supply and requires no software or firmware configuration in Proficy Machine Edition or Logicmaster 90.
- Power Budgeting: Ensure total rack consumption does not exceed 30 W total power or 15 A on the +5 V DC bus. High-density I/O configurations or multi-module Ethernet setups may require upgrading to the High-Capacity Power Supply (IC693PWR330).
- Slot Compatibility: Mounts exclusively in the dedicated leftmost slot (marked “PWR”) on all IC693 Main, Expansion, and Remote Baseplates.
Frequently Asked Questions (FAQ)
Is this power supply brand new or pulled from a used rack?
This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned panel, and not refurbished. All power supplies undergo full quality verification to ensure OEM-level reliability.
Why is buying New Surplus especially important for PLC power supplies like the ?
Power supplies contain aluminum electrolytic capacitors that degrade over time, especially when exposed to continuous heat in used industrial panels. Dried-out capacitors cause high output ripple voltage, causing random CPU faults and intermittent I/O card resets. Buying New Surplus guarantees fresh internal capacitors and 100% operational life.
What quality control steps are completed prior to shipment?
Every undergoes a full inspection protocol, including serial number tracking, terminal block thread inspection, power-on self-test (POST), and live load testing under full 30 W rated output to verify voltage regulation and ripple rejection.
What is the main difference between the and the IC693PWR330?
The is a Standard 30 Watt power supply providing up to 15 A at 5 V DC. The IC693PWR330 is a High-Capacity 30 Watt power supply providing up to 30 A at 5 V DC, designed for racks with dense high-current modules (such as Ethernet modules, motion cards, or high-density discrete I/O).
Does the supply the battery power to retain CPU memory during outages?
Yes. The houses the 3 V DC lithium battery connector that maintains volatile RAM memory in Series 90-30 CPUs when main line power is removed.
What warranty coverage is included with this New Surplus power supply?
This power supply module includes a full 1-year functional warranty. If any operational defect or hardware failure occurs during normal use within 12 months, we will immediately supply a replacement unit from our active buffer inventory.

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