The IS215VPROH2B operates in the independent protection section of a Mark VI turbine control. Three VPRO modules execute dedicated protective functions without relying on the VME backplane for their control data path. Each module receives field signals through the TPRO protection terminal board and supervises the emergency trip interface.
Accepts independent speed pickups, generator and line voltage, analog inputs and thermocouple signals, then distributes them to the protection channels.
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IS215VPROH2B processing
Performs independent high-speed protection calculations, evaluates permissives and provides channel diagnostics over IONet.
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Trip terminal boards
TREG, TREL or TRES hardware interfaces the voted protection result with turbine emergency-trip solenoids and trip contacts.
Selection rule: Do not substitute a VPRO solely because the faceplate or connector pattern looks similar. Confirm the complete catalog number, hardware revision, protection architecture and installed terminal-board combination.
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Our sales team can assist when a complete catalog number or suitable maintenance spare is difficult to locate.
Returns and replacement: Contact us within seven days if a concern appears after receipt. Keep the item in its original condition and state the reason for return. A replacement or refund is arranged after receipt and inspection; return shipping costs are borne by the buyer.
PURCHASING QUESTIONS
FAQ for IS215VPROH2B
01
IS215VPROH2B: Can one module replace a different VPRO revision?
Replacement should be based on the complete catalog number and the approved hardware/firmware pairing for the installed Mark VI protection rack. A physically fitting board is not sufficient evidence of compatibility.
02
IS215VPROH2B: What must be checked before purchasing?
Confirm the R/S/T channel position, current VPRO catalog number, connected TPRO and trip terminal-board variants, firmware expectations and the plant maintenance procedure.
03
IS215VPROH2B: Can the turbine remain protected while one channel is serviced?
A correctly configured TMR protection system can tolerate one unavailable channel, but the operating decision and maintenance sequence must follow the site's approved turbine-protection procedure.
04
IS215VPROH2B: Why is the TPRO relationship important?
TPRO distributes dedicated speed, voltage, analog and temperature signals to the VPRO channels. Connector condition, signal assignment and terminal-board revision directly affect the protection path.
05
IS215VPROH2B: What should be verified after installation?
Confirm module health, IONet communication, channel diagnostics, speed-input response, trip-interface feedback and restoration of the full voted protection arrangement before returning to normal service.
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IPv6 network supported