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GE IS215GFOIH1A
Product Name: Mark VIe Field Output Interface Board
Product Introduction: The GE IS215GFOIH1A is the standard A-revision Field Output Interface Board for the Mark VIe turbine control system. Like its B-revision counterpart (IS215GFOIH1AB), it provides field voltage & current sampling, speed/synchronizing inputs, and SCR gating pulses for exciter rectifier bridge control in gas and steam turbine applications.
Detailed content
Technical Specifications:
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Control Platform: Mark VIe / Mark VIeS
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Revision: A (standard Mark VIe version)
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Electrical Interfaces:
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Field voltage input: 0–600 V AC differential
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Field current input: 0–1 A AC (CT secondary)
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SCR gate pulses: 24 V DC, 1 A peak, 120° width
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Speed signal: 0–20 kHz, passive or active pickup
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Sync voltage: 100–240 V AC
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Power & Consumption: Logic supply 24 V DC ±10%, < 15 W
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Isolation: 2.5 kV channel-to-ground; on-board MOV & TVS transient suppression
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Environmental: Operating temperature 0–65 °C; Humidity 5–95% RH non-condensing
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Mechanical: Single-slot 6U Eurocard, PCB 160 mm × 233 mm; Front panel 8 HP (40 mm) high with status LEDs; 160-pin HD connector
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Certifications: CE, UL 508; compliant with IEC 61000-4 EMC and IEC 60068-2 vibration/shock standards
Key Features: Enables closed-loop control and protection of the gas-turbine field circuit; high reliability for demanding turbine control environments; robust design with transient suppression for industrial power plant conditions.
Compatibility: IS215GFOIH1A is the A-revision; IS215GFOIH1AB (B revision) is downward compatible with A — update ToolboxST HW description after swap. Not interchangeable with IS200GFOIH1A (Mark VI version) due to different back-plane, software, and terminal boards.
Related Components: Terminal boards: IS200TGOIH1A, IS200TGOIH2A, IS400TGOIH1A; Cable assembly: IS200WGOIH2A; Main processors: IS215UCVEH2A (Mark VIe), IS200VTURH2A (Mark VI).
Software Support: Mark VIe: ToolboxST v7.0 or later (auto-detects HW revision); Mark VI: configured via CIMPLICITY.
Working Principle: The board samples field voltage and current, processes speed and synchronizing inputs, and generates 6-channel SCR gating pulses for the exciter rectifier bridge, enabling closed-loop control and protection of the gas-turbine field circuit.
