GE IC693PWR321M Power Supply

The GE IC693PWR321M delivers reliable DC power for Series 90-30 PLC systems. This module converts AC line voltage into stable DC outputs. You will find it inside main racks and expansion units. It provides +5 VDC and +24 VDC for backplane and I/O modules. Therefore, this unit is essential for proper system operation.

This power supply measures 140 mm in height and 55 mm in width. Its depth reaches 130 mm for standard rack mounting. The unit weighs approximately 0.85 kilograms. It contains one main transformer and six electrolytic capacitors. Four status LEDs indicate power good and overload conditions. Additionally, you get a built-in fan for forced air cooling.

Key Technical Specifications

Parameter	Value
Manufacturer	GE Fanuc Automation
Model	IC693PWR321M
Product Type	Power Supply Module
Input Voltage	85-264 VAC (47-63 Hz)
Output +5 VDC	30 A (maximum)
Output +24 VDC	5 A (maximum)
Total Output Power	270 W
Height	140 mm
Width	55 mm
Depth	130 mm
Weight	0.85 kg
Number of Capacitors	6 (electrolytic)
Energy Storage	≈ 3200 µF
Status LEDs	4 (PWR, OK, OVLD, FAN)
Cooling Method	Internal fan
Operating Temperature	0°C to +60°C

Internal Architecture and Energy Storage

The GE IC693PWR321M stores substantial energy in its capacitor bank. Six electrolytic capacitors hold approximately 3200 microfarads of total capacitance. This storage allows the supply to ride through 20 ms AC line drops. A switching regulator operates at 100 kHz for high efficiency. The main transformer provides isolation between input and output circuits. You get overvoltage protection on both DC output rails. A fan runs continuously to keep internal temperatures low.

Connection Interfaces and Wiring Details

You will find a 3-terminal AC input block on the front panel. Connect the live, neutral, and ground wires to these terminals. Use 14 AWG copper wire for all AC connections. The GE IC693PWR321M also includes a 12-pin DC output connector. This connector plugs directly into the Series 90-30 backplane. Four pins carry +5 VDC at 30 amps maximum. Two additional pins provide +24 VDC at 5 amps. Always connect the ground terminal before applying power.

Installation and Mounting Steps

You slide this power supply into a dedicated slot on the main rack. First, align the module with the card guides carefully. Then, push it firmly until the backplane connector seats. Secure the front panel with two retaining screws. Connect the AC input wires to the terminal block. The GE IC693PWR321M automatically accepts 120 or 240 VAC. Verify that the four LEDs show normal status after power-up. Do not block the fan intake or exhaust openings. Leave 50 mm of free space around all sides for airflow.