Digital guide
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GE IS215VPROH2B
Product Name: Mark VI VPRO Independent Turbine Protection Module (H2B Revision)
Product Description: A physically and electrically isolated safety module that provides independent overspeed, overtemperature, vibration, and differential-expansion trip protection for heavy-duty turbines, operating even if the main controller fails.
Detailed content
Technical Specifications:
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Architecture: 6U single-slot VME, SMT, 32-bit DSP + FPGA
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Inputs: 6 magnetic pickup speed, 9 K-type thermocouple, 3 × 4-20 mA
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Voting: 2-out-of-3 across three VPRO cards in TMR
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Trip Outputs: Drives TREG terminal board, 12 relays, 3 trip solenoids
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Communication: IONet 10/100, RS-232 diagnostics
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Power: 125 V DC trip + 24 V DC logic
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Response Time: ≤ 25 ms
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Temperature: -30 °C to +65 °C
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Safety: IEC 61508 SIL 2/3, UL, CE, ATEX Z2Functional Features: Decoupled from main MCU, hot-swappable LRU, self-test, 2oo3 voting, independent safe-state forcing.Structural Characteristics: Single-board (non-stacked H2 vs H1), Sub-D + RJ45 + LED front, triplicated isolated front-end, conformal coat.Working Principle: Parallel sampling of speed/TC/analog → DSP evaluates limits → FPGA performs 2oo3 → fires trip relays to de-energize solenoids.Installation Requirements: Three cards distributed across R/S/T VME racks, dual 24 V DC redundant feed ≥0.75 mm², cabinet earth bonded.Usage Notes: H2B and H1B are not cross-rack interchangeable; validate IONet mapping after swap; annual functional trip test mandatory.
