GE F31X139APMALG2

Technical Specifications

• Board Type: Application-Specific Power Module PCB with conformal coating and optimized high-density layout.

• Input Voltage: 85-264 VAC (universal input, autosensing) or 24 VDC auxiliary with enhanced transient protection.

• Output Rails: +5 VDC (logic, 4.5A), ±15 VDC (analog, 1.5A each), +24 VDC (I/O and relay coils, 3.5A), and three isolated auxiliary outputs (configurable) – expanded.

• Auxiliary Outputs: Three isolated outputs (24 VDC or ±15 VDC) with independent ultra-precision regulation, enhanced filtering for noise-sensitive devices, and short-circuit protection.

• Protection Features: Overcurrent, overvoltage, undervoltage, short-circuit, overtemperature with automatic recovery, input transient protection, and crowbar protection on critical rails.

• Fusing: Primary and secondary fuses with LED indicators, spare fuse holder, and resettable overcurrent protection on all auxiliary outputs.

• Communication: Backplane interface to regulator board via 96-pin DIN connector with gold-plated contacts.

• Status Indicators: 18 LEDs for power, output status, fault conditions, thermal warning, auxiliary output monitoring, input power quality, and crowbar activation.

• Form Factor: Standard 6U height, 220mm depth, GE 19″ rack compatible.

• Temperature Range: -20°C to +75°C operational.

• Isolation: 2500V RMS between primary and secondary circuits, with enhanced common-mode transient immunity and 1500V RMS between auxiliary outputs.

• MTBF: 240,000 hours.

Advantages & Key Features

• Expanded Auxiliary Outputs: The GE Fanuc F31X139APMALG2 provides three isolated auxiliary outputs, offering the highest number of auxiliary power sources in the APM series for complex systems with multiple external devices.

• Enhanced Auxiliary Filtering: Advanced filtering on all auxiliary outputs of the GE Fanuc F31X139APMALG2 ensures ultra-clean power for noise-sensitive external sensors, encoders, and control devices.

• Independent Auxiliary Regulation: Each auxiliary output on the GE Fanuc F31X139APMALG2 is independently regulated, preventing load variations on one output from affecting others.

• High Power Capacity: Provides high current on all rails (4.5A on +5V, 3.5A on +24V), supporting demanding drive configurations.

• Universal AC Input: Accepts 85-264 VAC with autosensing, eliminating jumper configuration errors.

• Comprehensive Protection: Overcurrent, overvoltage, undervoltage, short-circuit, overtemperature, input transient protection, and crowbar protection on the GE Fanuc F31X139APMALG2 ensure maximum safety.

• Resettable Auxiliary Protection: Resettable overcurrent protection on all auxiliary outputs on the GE Fanuc F31X139APMALG2 reduces maintenance requirements.

• Comprehensive Diagnostics: 18-LED indicator matrix with input power quality, thermal warning, and crowbar activation monitoring.

• Extended Temperature Range: -20°C to +75°C for demanding environments.

• Enhanced Isolation: 2500V RMS primary-secondary isolation and 1500V RMS auxiliary-auxiliary isolation.

• Conformal Coating: Protects against dust, moisture, and chemicals.

Application Fields

• Steel & Metal Processing: Complex rolling mill applications requiring clean, isolated power for multiple external sensors, encoders, and transducers.

• Paper & Pulp: Large paper machine drive systems with extensive auxiliary power requirements for multiple feedback devices.

• Mining: Outdoor installations requiring isolated power for multiple remote sensors.

• Precision Manufacturing: Systems with numerous noise-sensitive measurement devices.

• General Industrial: Any GE DC300/DC200 drive requiring the highest number of auxiliary power outputs.

Comparison with Alternatives

Key Differentiator: The GE Fanuc F31X139APMALG2 offers the highest number of auxiliary outputs (3) with enhanced filtering, independent ultra-precision regulation, and 1500V auxiliary-auxiliary isolation, making it the ultimate choice for complex systems requiring multiple clean, isolated power sources for external devices.

Selection Suggestions & Precautions

1. Multiple Auxiliary Power Requirements: The GE Fanuc F31X139APMALG2 is the recommended choice if your system requires more than two isolated auxiliary outputs.

2. Noise-Sensitive External Devices: Choose this board for applications with noise-sensitive sensors, encoders, or measurement devices requiring ultra-clean power.

3. Independent Load Isolation: The independent regulation on each auxiliary output of the GE Fanuc F31X139APMALG2 ensures load variations on one output do not affect others.

4. High Power Requirements: Ensure your system’s power requirements are within the board’s capacity.

5. Auxiliary Output Configuration: Configure each auxiliary output voltage and current settings according to your external device requirements.

6. Load Calculation: Verify total power draw across all outputs does not exceed the board’s total capacity.

7. Capacitor Aging: NOS boards stored >5 years should be inspected and reformed before installation.

8. Test Report Required: Request comprehensive verification including:

   • All output rails under maximum load

   • Auxiliary output regulation accuracy under varying loads

   • Auxiliary filtering effectiveness verification

   • Auxiliary-auxiliary isolation test (1500V)

   • 48-hour burn-in at 75°C

9. Spare Strategy: For complex systems with extensive auxiliary power requirements, maintain a tested spare of the GE Fanuc F31X139APMALG2.

Final Recommendation

The GE Fanuc F31X139APMALG2 is a specialized high-performance power module board for GE DC300/DC200 drive systems requiring the highest number of isolated auxiliary outputs (3) with enhanced filtering, independent ultra-precision regulation, and auxiliary-auxiliary isolation. It is the preferred choice for complex applications with multiple noise-sensitive external devices requiring clean, stable, isolated power sources. For applications requiring fewer auxiliary outputs, the AKG2 or AJG2 revisions may offer better cost-value. The GE Fanuc F31X139APMALG2 represents an excellent investment for complex drive systems with extensive auxiliary power requirements. Prioritize suppliers with comprehensive testing capabilities and NIST-traceable calibration. For critical applications, maintain a tested spare of the GE Fanuc F31X139APMALG2 to minimize downtime. As GE has discontinued this series, sourcing through reputable aftermarket suppliers with refurbishment and testing capabilities is recommended.