IS200VPWRH1A GE

Detailed Technical Specifications

• Input Voltage: 24 VDC nominal (18–32 VDC range)

• Output Voltages:

  • +5 VDC @ 20 A (main logic supply)

  • +3.3 VDC @ 15 A (VME I/O and processor core supply)

  • ±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), overcurrent, and transient suppression (MIL-STD-1275A compliant)

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

• Status Indicators: LED array for input OK, each output rail OK, and fault conditions

• Monitoring: On-board voltage/current telemetry accessible via I/O Net (with optional monitoring firmware)

• 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 (screw-type)

Advantages & Distinctive Features

• Stable Power Delivery: Provides clean, regulated power to all VME backplane boards, minimizing noise and ripple (<50 mV peak-to-peak) critical for analog I/O accuracy and high-speed processor operation.

• Comprehensive Protection: Full suite of input/output protections ensures that a fault on any single rail does not compromise the entire rack—overcurrent limiting prevents downstream damage.

• Hot-Swappable: The GE IS200VPWRH1A supports hot-swap insertion/removal (with proper sequencing), allowing replacement without powering down the entire turbine control system—critical for maintaining uptime in power generation applications.

• Diagnostic Visibility: On-board voltage and current monitoring provides real-time status via the I/O Net network (when configured), enabling predictive maintenance and early fault detection.

• Redundancy Ready: Can be paired with a second power supply in a redundant configuration (diode-ORed outputs) for high-availability systems.

• Wide Input Range: Accepts 18–32 VDC, accommodating battery-backed DC systems with voltage sags or surges common in industrial environments.

Application Fields

• Turbine Control Racks: Primary power source for Mark VIe racks housing GE IS200VPROH1A, GE IS200VPROH1B, and H2 series processor boards.

• I/O Expansion Racks: Powers terminal boards (IS200TBCIH, IS200TRTDH, IS200VCMIH) in distributed I/O cabinets.

• Redundant Power Configurations: Used in pairs for mission-critical applications (gas turbines, steam turbines, compressors) where a single power supply failure cannot be tolerated.

• Retrofit Projects: Replaces older IS200PWR-series modules in legacy Mark V/VI systems when upgrading to Mark VIe.

Comparison with Competing Products

The GE IS200VPWRH1A offers higher current capacity and integrated network monitoring, making it superior for power-hungry Mark VIe racks with multiple processor and I/O boards.

Selection Guidelines

• When to choose: Primary or redundant power supply for any Mark VIe VME rack containing processor boards (VPRO), terminal boards, or communication modules requiring +5 V, +3.3 V, and ±12 V rails.

• Compatibility: Fits standard Mark VIe racks (VME64x backplane). Check total rack power consumption—sum of all board loads must not exceed 150 W (180 W peak).

• Redundancy Planning: For critical turbines, order two GE IS200VPWRH1A units with a diode-OR backplane or external redundancy module to enable failover.

• Input Wiring: Use appropriately sized conductors (minimum 14 AWG) for DC input. Install a fast-acting fuse (20 A) or circuit breaker on the DC input line per NEC/CEC requirements.

• Cooling: Ensure cabinet airflow ≥150 LFM; derate maximum output power by 10% for every 5 °C above 50 °C ambient.

• Firmware: Optional monitoring firmware enables I/O Net telemetry—requires ControlST v6.0+ and configuration in Toolbox ST.

Operational Precautions

1. Input Polarity: Double-check DC input polarity before power-up—reverse polarity protection is present but sustained reversal may damage input capacitors.

2. Hot-Swap Procedure: When inserting or removing the GE IS200VPWRH1A under power, do so slowly to avoid inrush current spikes. Insert fully before applying front-panel input power (if external breaker is used).

3. Load Calculation: Verify total rack load does not exceed 150 W. Overloading the +5 V rail (20 A max) is a common installation error—measure current draw during commissioning.

4. Battery Backup: For systems requiring uninterrupted operation during input power sags, use a DC UPS (e.g., 24 V battery string) upstream of the GE IS200VPWRH1A—the module has no internal battery.

5. Status Monitoring: Regularly check front-panel LEDs—if any rail LED is amber/red, investigate the downstream load for shorts or excessive current draw.

6. Redundancy Testing: For redundant configurations, perform manual failover tests during outages—verify that the standby unit takes over seamlessly without voltage dips.

7. Spare Stock: Maintain at least one spare GE IS200VPWRH1A per 3–4 racks. Input power surges can stress supplies over time—rotate spares every 5 years or after any major lightning event in the vicinity.