GE PACSystems RX7i power module (IC698PSA100/350 series)

GE PACSystems RX7i power module (IC698PSA100/350 series)

Comparison of module core specifications

Both modules are dedicated power supplies for slot 0 of the RX7i mainframe, providing three output voltages and logic level timing signals:+5VDC,+12VDC, and -12VDC. The core differences are concentrated in power, heat dissipation requirements, and current output capabilities. The specific parameters are shown in the table below:

Parameter IC698PSA100 IC698PSA350

Total output power 100W 350W

Cooling requirements: No forced air cooling is required in an environment of 0-60 ℃ (natural convection is sufficient). In an environment of 0-60 ℃, forced air cooling (70CFM air volume) is required for the bottom fan tray of the rack. If there is no forced air cooling, it should be operated according to the temperature derating curve

Output current+5VDC: maximum 20A;+12VDC: maximum 2A; -12VDC: maximum 1A+5VDC: maximum 60A;+12VDC: maximum 12A; -12VDC: maximum 4A

Input voltage range 85-264VAC (47-63Hz), 100-150VDC, same as IC698PSA100

Typical input power is 125W, maximum 150W, typical 437W, maximum 500W

Input surge current 115VAC cold start: maximum 15A; 230VAC cold start: maximum 30A, continuous 100ms 115VAC cold start: maximum 30A; 230VAC cold start: maximum 60A, continuous 100ms

Fuse specifications 4A/250V (5 × 20mm, B and subsequent versions) 8A/250V (5 × 20mm, B and subsequent versions)

Key functions and protection mechanisms

1. General functions

Wide voltage adaptation: Supports 85-264VAC AC input and 100-150VDC DC input, suitable for different power supply scenarios.

Power factor correction: When operating in AC mode, the power factor should be ≥ 0.99 (effective within the range of 90-260VAC) to improve the efficiency of energy utilization.

Continuous power supply during power outage: When the AC input is interrupted, the module can maintain the output power for one AC line cycle to avoid output interruption; The ACFAIL # signal will trigger at least 5ms before the output falls below the specification limit, providing a power outage warning to the system.

LED status indicator: The front panel is equipped with 3 LEDs, each displaying different statuses:

Field OK (green): It lights up when the AC power input is within the specification range;

OUTPUT OK (green): It lights up when all three DC output channels are working normally, and turns off when any channel fails;

OVER TEMP (red, IC698PSA350 only): Illuminates when the power supply temperature exceeds the critical value or when the airflow sensor detects a disconnection.

2. Protection mechanism

Overvoltage protection: When the voltage of any output channel exceeds 15% or more of the nominal value, all outputs will be locked and closed, and the power switch needs to be restarted or the AC input disconnected to restore.

Overcurrent/Short Circuit Protection: All three output channels have electronic current limiting function. When overloaded or short circuited, the voltage will drop (which may cause the voltage of other channels to drop synchronously). After the fault is removed, it will automatically recover (with reserved component cooling time).

Over temperature protection: Equipped with a built-in temperature sensor, the output channel is closed when overheating occurs, and the temperature automatically recovers when it drops to the normal range; The IC698PSA350 is additionally equipped with an airflow sensor that locks the output when a fan fault or airflow blockage is detected, and recovers after the temperature drops (the airflow sensor can be enabled/disabled through a jumper, default enabled, with 1-2 pins enabled and 2-3 pins disabled).

Input protection: Both the live and neutral wires of the AC input are equipped with replaceable fuses to prevent abnormal input from damaging the module.

Version iteration and compatibility

Functional compatibility: The E version (released in August 2010) is completely interchangeable with all older versions (A/B/C/D), with no differences in functionality or performance, only label updates.

Version critical update:

Version A (May 2003): Initial release version;

Version B (May 2004): No clear feature updates, please refer to GFK-2237B for details;

Version C (June 2005): Added over temperature detection function, please refer to GFK-2237C for details;

D version (August 2006): Complies with ATEX explosion-proof directive (Class II, Class 3 hazardous area), fixes occasional issues of CPU memory damage caused by power shutdown;

Version E (August 2010): Only updated tags, no functional changes.

Installation and safety regulations

1. Installation requirements

Installation position: Can only be installed in the leftmost slot (slot 0) of the RX7i standard rack;

Wiring specifications:

Input wiring: Use 75 ℃ - rated 16AWG (1.3mm ²) copper wire, and the terminal can be connected to 2 wires of the same type/specification. A single wire can support up to 12AWG, and the wire stripping length is 0.25 inches (7mm). If it is too long, the wire will be exposed and there is a risk of electric shock;

Grounding requirements: The power GND terminal needs to be connected to the rack GND terminal and ground with a 75 ℃ - rated 12AWG (3.3mm ²) copper wire. It is recommended to use a ring terminal and star washer to ensure reliable grounding, with a wiring torque of 12 inch pounds (1.3N · m);