IS215VPROH1BE is the Emergency Overspeed Protection (EOS) / Main Protection Processor module—commonly called VPRO—within the GE Mark VI turbine control system.
It mounts inside a dedicated "Protection Module P" enclosure that is physically separate from the main control rack and communicates via IONet, delivering triple-modular-redundant (TMR) emergency trip, speed monitoring and synchronizing-check functions.
1. Hardware Outline
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Item
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Specification
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Processor
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PowerPC 8245, 533 MHz
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Memory
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256 MB DDR SDRAM (expandable to 512 MB)
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Storage
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16 MB Flash + optional CompactFlash
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Power
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24 VDC redundant inputs, ≈ 15 W consumption
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Temperature
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–40 °C … +85 °C
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Form factor
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6 U VME, 267 × 165 × 88 mm, ≈ 2.3 kg
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Front panel
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4 × LEDs (Run / Fail / Status / Reset)
3 × BNC (IONet 10 Base2)
1 × RS-232C diagnostic port
1 × USB 2.0 service port
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2. Core Functions
Emergency Overspeed Protection (EOS)
Accepts signals from 3 passive magnetic speed pickups (MPU), calculates wheel speed independently; when speed > set-point (typically 110 % rated) it energizes trip relays instantly, de-energizing trip solenoids—response < 20 ms.
Triple-Redundant Architecture
Three fully independent VPRO boards (R / S / T) reside in the same enclosure; any two simultaneous alarms produce a trip. Boards can be extracted/inserted on-line without process disturbance.
Back-up Synchronizing Check
Via the TPRO terminal board it samples generator & bus PT (115 V); a phase-locked-loop algorithm allows closing only when phase difference ≤ ±1° and frequency difference ≤ 0.05 %.
Analog & Temperature Acquisition
On-board 9 thermocouple channels and 3 × 4-20 mA inputs for exhaust over-temperature, vibration, pressure lock-outs.
Trip Solenoid Drive
Through TREG terminal board it controls 3 × 125 VDC trip solenoids (ETD); supports on-line pulse testing and manual emergency-stop push-button.
3. Typical Applications
Gas turbines Frame 5/6/7 and steam turbines 150 MW – 600 MW
Combined-cycle plants, pipeline compressors, large industrial drives
Any rotating machine requiring hardware-level overspeed / over-temperature / synchronizing protection independent of the main controller
4. Ordering & Support
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Part Number
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Description
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Stock
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Lead-time
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IS215VPROH1BE
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VPRO Protection Module
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YES
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≤ 24 h
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PLC Autocontroller – 20 years focused on genuine GE automation modules
✓ 100 % brand-new & original, 12-month replacement warranty
✓ Pre-delivery EOS trip-time test in Mark VI protection enclosure
✓ World-wide express (DHL / UPS / FedEx)5-7 days door-to-door
ab@mooreplc.com | +86-18106909650 (WhatsApp)
WeChat: dcsfcs | Contact: May
Send your BOM – receive a formal quotation + GE certificate within 30 minutes.
What happens next?
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Your quote
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