IS200VPWRH1AFB GE

Detailed Technical Specifications

• Input Voltage: 24 VDC nominal (18–32 VDC range), with enhanced transient suppression (surge withstand per IEC 61000-4-5 Level 4: ±4 kV line-to-earth, ±2 kV line-to-line)

• Output Voltages:

  • +5 VDC @ 20 A (main logic supply, with reduced ripple <30 mV p-p versus 50 mV on base version)

  • +3.3 VDC @ 15 A (VME I/O and processor core supply, improved load regulation ±1% )

  • ±12 VDC @ 2 A each (analog and communication interfaces)

  • Standby +5 VDC @ 1 A (for battery charging and RTC retention)

• Total Output Power: 150 W typical, 180 W peak

• Efficiency: >85% at full load

• Form Factor: 6U VME64x (160 × 233 mm), single-slot width

• Input Protection: Reverse polarity, overvoltage (crowbar with faster response <5 µs ), overcurrent, and enhanced transient suppression (MOV + TVS + filter network)

• Output Protection: Individual channel overcurrent limiting, short-circuit protection, thermal shutdown, and overvoltage clamping

• EMC Compliance: IEC 61000-6-2 (industrial immunity), IEC 61000-6-4 (emission), CISPR 11 Class A

• Status Indicators: Expanded LED array including input quality (green = good, amber = marginal), individual rail OK, and fault history (blink code for diagnostics)

• Monitoring: On-board voltage/current telemetry accessible via I/O Net (standard on FB variant)

• Operating Temp: 0 °C to +60 °C (standard), derated above 50 °C

• Cooling: Convection with forced-air assist (minimum 150 LFM)

• Connectors: VME64x P1/P2 backplane connector + front-panel DC input terminal block (heavy-duty screw-type with captive washers for vibration resistance)

• Additional Filtering: DC input EMI filter (common-mode and differential-mode) plus ferrite beads on all output rails

Advantages & Distinctive Features

• Enhanced Noise Immunity: The GE IS200VPWRH1AFB provides superior EMI/RFI filtering, making it ideal for installations near variable-frequency drives (VFDs), high-power inverters, or welding equipment—common in industrial and power generation environments.

• Superior Transient Protection: Enhanced surge suppression (±4 kV line-to-earth) protects the VME backplane and connected boards from lightning-induced surges and switching transients—critical for outdoor installations with long DC cabling.

• Lower Output Ripple: Reduced ripple (<30 mV p-p on +5 V) ensures cleaner power for sensitive analog I/O boards (e.g., IS200TRTDH for RTD temperature measurements) and high-speed processor boards (H2 series), improving measurement accuracy and reducing jitter.

• Advanced Diagnostics: Expanded LED array with fault history (blink codes) enables rapid root-cause analysis without external test equipment—a significant time-saver during troubleshooting.

• Hardened Input Terminals: Heavy-duty screw terminals with captive washers prevent loosening due to vibration, ensuring reliable DC input connection in turbine control cabinets.

• Hot-Swappable: Full hot-swap support with inrush current limiting, allowing replacement without powering down the rack.

• Redundancy Ready: Can be paired with a second “FB” unit in diode-OR configuration for high-availability systems, with enhanced transient suppression reducing failover stress.

Application Fields

• Turbine Control Near VFDs: Power generation plants where variable-frequency drives for pumps/compressors are located in the same control room—the “FB” variant prevents VFD-induced noise from corrupting control signals.

• Outdoor/Remote Cabinets: Installations with long DC feeder cables (up to 100 m) prone to induced surges and ground potential rise—enhanced surge suppression ensures reliable operation.

• Retrofit of Older Sites: Replacing failed power supplies in electrically “noisy” legacy installations—the GE IS200VPWRH1AFB often solves unexplained processor resets or I/O errors caused by poor power quality.

• High-Vibration Environments: Marine engine rooms and compressor stations where input terminal loosening is a concern—captive washer terminals provide secure connections.

• EMC-Compliance Critical Sites: Facilities subject to strict EMC audits (e.g., European power plants requiring CE certification)—the FB variant is pre-qualified to higher immunity levels.

Comparison with Competing Products

The GE IS200VPWRH1AFB delivers superior surge protection, lower ripple, and vibration-resistant terminals, making it the premium choice for harsh electrical and mechanical environments.

Selection Guidelines

• When to choose: Select the “FB” variant when any of the following apply:

  • Rack shares a control cabinet with VFDs, welders, or other high-noise equipment.

  • DC input cables exceed 30 m in length (increased surge risk).

  • Site has a history of lightning activity or grid instability.

  • Analog I/O accuracy is critical (RTD, thermocouple, 4–20 mA) and requires clean power.

  • Vibration is present (marine, compressor stations, or turbine deck installations).

• When to avoid: For clean, low-noise environments with short DC cabling, the base GE IS200VPWRH1A may be more cost-effective.

• Compatibility: Fits all Mark VIe VME64x racks. Requires same power budget as base version (150 W max). Redundancy pairing should use two FB units—do not mix base and FB in redundant configuration as ripple and transient response differ.

• Cooling: Same as base version—≥150 LFM airflow; derate above 50 °C.

• Input Wiring: Use shielded DC cables for optimal noise immunity—ground the shield at the power supply end per GE installation guidelines.

Operational Precautions

1. Input Voltage Quality: Despite enhanced filtering, avoid sustained operation below 20 VDC—the module will derate output capacity proportionally.

2. Grounding: Proper grounding is essential for the EMI filter effectiveness—connect the ground terminal to the cabinet earth bus with a low-impedance path (<1 Ω).

3. Fault History Interpretation: If an amber/red LED blinks, refer to the Mark VIe Power Supply LED Code Table (GEH-6800) to diagnose the fault—common codes indicate overcurrent, overtemp, or input undervoltage.

4. Thermal Derating: At 60 °C ambient, reduce total load to 120 W maximum. Monitor on-board temperature via I/O Net telemetry if available.

5. Redundancy Testing: During failover tests, measure the voltage dip (should be <100 mV) during transfer—excessive dip indicates worn diode-OR modules or aging capacitors.

6. Capacitor Aging: Electrolytic capacitors in the GE IS200VPWRH1AFB degrade over time (typically 7–10 years). Proactively replace units after 8 years of continuous operation to avoid unexpected failures.

7. Spare Stock: Maintain one spare “FB” unit per 3–4 racks. For high-availability sites, keep a floating spare for immediate swap—the enhanced filtering makes this variant a direct upgrade for any H1A socket.