GE IS215VPROH1BD VPRO Emergency Turbine Protection Module

Description

Hardware & Electrical Specifications

‑ Model：IS215VPROH1BD ‑ Part Number：IS215VPROH1BD ‑ Module Type：VPRO Emergency Turbine Protection Module ‑ Mounting：6U single‑slot VME rack installation ‑ Power supply：+5 VDC, ±12 VDC powered via VME backplane; trip circuit power 125 VDC (70‑145 VDC) ‑ On‑board processor：Dedicated safety processor for speed measurement and protection logic ‑ Signal interfaces：   • MPU magnetic pickup speed sensor input channels for turbine speed acquisition   • Dry‑contact discrete trip input channels   • Trip drive output interface connected to TREG terminal board for trip solenoid control   • VME bus interface for status data upload to main controller ‑ PCB treatment：Conformal coated for dust‑moisture‑corrosion resistance ‑ On‑board protection：ESD protection, MOV surge suppression, hardware watchdog self‑monitor circuit, signal channel isolation, built‑in self‑diagnosis for overspeed detection circuit ‑ Compatibility note：Cannot run standalone; must match Mark VI VME rack, UCV main controller and TREG terminal board; full protection‑loop simulation test mandatory after replacement。

Environmental Specifications

‑ Operating temperature：‑25 ℃ ~ +70 ℃ ‑ Storage temperature：‑40 ℃ ~ +85 ℃ ‑ Relative humidity：5%‑95% non‑condensing ‑ Installation location：Indoor turbine control cabinet ‑ EMC compliance：IEC 61000‑6‑2 ‑ Certifications：CE

Mechanical Data

‑ Weight：approx 1.5 kg ‑ Dimension：280 mm × 160 mm × 25 mm (6U VME standard form‑factor) ‑ Handling note：ESD‑sensitive PCB; safety protection circuit, anti‑static wrist‑strap mandatory during handling ‑ Terminal tightening torque：0.6‑1.0 N·m

Main Functions

1. Independent hardware overspeed protection: acquires turbine speed signal from MPU sensors, executes hardware overspeed trip logic independent of main CPU software.
2. Process external emergency trip dry‑contact signals, output trip drive signal to TREG board to actuate trip solenoid for turbine emergency shutdown.
3. Real‑time self‑diagnosis for speed measurement channel, trip circuit and module hardware; upload fault status and protection action record to main controller via VME bus.
4. LED status indication:   ‑ Green LED：Board power supply normal / RUN status   ‑ Yellow LED：Speed signal / input channel activity indicator   ‑ Red LED：Module FAIL / protection trip fault alarm

Installation & Wiring Requirements

1. Cut off rack power supply before replacement. Hot‑swap is forbidden. Strict anti‑static protection when handling PCB board.
2. Insert board into designated VME slot, secure panel locking screws; ensure VME backplane contact is reliable.
3. MPU speed sensor, trip contact and TREG wiring strictly follow GE Speedtronic Mark VI wiring manual; signal cables shall be separated from high‑power cables; connect shielding to dedicated ground terminal.
4. Complete protective grounding according to GE system specification.
5. After replacement: verify VME rack power‑on status, check MPU speed reading, perform overspeed simulation test and trip loop commissioning test.

6. Replacement note: For TMR triple‑redundant system application, hardware consistency and firmware‑version matching of redundant VPRO modules shall be verified; full protection‑loop simulation test mandatory before unit put‑into‑service.