Mark VIe Power Supply IS220PSCAH1A GE System Monitor High Efficiency

The IS220PSCAH1A is a dual-role module serving as both a high-efficiency 24 VDC power supply and intelligent system monitor for Mark VIe turbine and process control racks. It delivers 150 W @ 24 V and 50 W @ 5 V/3.3 V rails, powering I/O packs, CPUs, and communications while reporting voltage, current, temperature, and fan speed over the internal CAN bus. Designed for hot-swap operation and redundancy, this unit is qualified for -40…+70 °C environments and serves as the standard PSU for gas, steam, and hydro turbine skids worldwide.

• Triple-output power - 24 V @ 6.3 A, 5 V @ 6 A, 3.3 V @ 4 A; total 150 W
• Redundancy-ready - two modules share load automatically; single unit maintains 100% capacity if partner fails
• System monitor - CAN-bus telemetry for voltage, current, temperature, fan RPM, and fuse status
• 94% efficiency - reduces panel heat load by 20% compared to older PSR models
• Hot-swap under power - slide-in design with captive lever prevents turbine trips during replacement
• Harsh environment rated - conformal coated, operates in -40…+70 °C, withstands 5 g vibration and 50 g shock
• Global certifications - CE, UL 508, ATEX Zone 2, ABS marine, RoHS, REACH compliant

• Gas-turbine Mark VIe control racks (simple- and combined-cycle)
• Steam-turbine inlet valve driver supplies
• Hydro governor and exciter panels
• Redundant power for remote I/O nodes up to 1 km
• Retrofit of legacy PSR, PSM and PQS supplies in Mark V/VI panels

• Rack: Mark VIe IS215VPROH2BC (vertical) or IS215HPROH2BC (horizontal)
• Cable: IS200TBCVH1B (terminal board) for field power distribution
• CPU: IS215UCVEM09A/B (redundant pair supported)
• Redundancy: IS220PSCAH1A (second unit) + IS200EROCH1A (OR-ing diode)
• Fan kit: IS200FANDH1A (40 CFM, 24 VDC, hot-swap)

1. Slot module into any Mark VIe VME slot; captive lever clicks into place
2. Connect 24 VDC - use 10 AWG wire, torque to 1.2 N*m; dual studs accept ring lugs
3. Enable redundancy - set DIP-switch 1 = ON; second PSU slots adjacent
4. Verify LEDs - green "PWR" steady, green "STATUS" flashes 1 Hz when CAN sync OK
5. Check telemetry - ToolboxST > I/O > PSCA > real-time V,I,T,fan RPM

• 1 * IS220PSCAH1A power supply / monitor, factory-sealed
• 1 * quick-start guide (English)
• 2 * M4 mounting screws & serrated washers