1.4.3.3
Turbine I/O Types
Turbine specific I/O modules provide direct interface to unique turbine field devices, which reduces or eliminates a substantial amount of interposing instrumentation. As a
result, many potential single-point failures are eliminated for improved running reliability and reduced long-term maintenance. Direct interface also enables the diagnostics
to directly monitor field devices. This provides more precise messages to minimize maintenance time.
Pack
# packs
Terminal Board
Turbine Applications
Terminal Block Type
PAMCH1A
1 or 2
SAMBH1A
Acoustic Monitor for MS 6, 7, 9 gas turbines: 18 inputs and buffered outputs
UCSA used as I/O pack to interface with BAPA for acoustic monitoring function
Removable, Box
PCLAH1A
PCLAH1B
1
SCLSH2A
Core Analog I/O for aero-derivative turbines
Removable, Box
3
SCLTH2A
PCAAH1A
PCAAH1B
1
TCASH2A
Core Analog I/O for heavy duty gas turbines
Removable, Box
3
TCATH2A
PEFVH1A
1, 2, or 3
TEFVH1A
Electric Fuel Valve Gateway to Woodward™ DVP
N/A
PGENH1A
1 or 3
TGNAH1A
Used for Power Load Unbalance (PLU) and has three 1-phase PTs, three V/I inputs. Analog inputs are box-type and
removable. Current transformer (CT) inputs are barrier-type and not removable.
PVIBH1A
PVIBH1B
1 or 3
TVBAH1A
TVBAH2A
TVBAH1B
TVBAH2B
Refer to GEH-6721_Vol_II for a complete listing of supported inputs.
TVBAH2A and TBVAH2B include buffered outputs and BNC connectors.
Removable, Barrier
PSVOH1A
PSVOH1B
1 or 3
TSVCH1
TSVCH2A
Servos: 2 channels, 2-coil outputs, 8 LVDTs and excitation, 2 pulse rate inputs (heavy
duty & Aero-derivative gas & steam)
Removable, Barrier
PSVPH1A
1
SSVPH1A
SSVPH2A
Steam servo applications: 2 channels, 2-coil outputs, 6 LVDTs and 2 excitation, 1
pulse rate input for speed feedback
Removable, Barrier
Removable, Box
PTURH1B
PTURH1A
1, 3
TTURH#C
Turbine Specific Primary Trip, 48 points
Removable, Barrier
1
STURH#A
Removable, Box
3
TRPAH#A
Aeroderivative Turbine Primary Trip, 48 points
Removable, Barrier
Control System Overview
GEH-6721_Vol_I_BP System Guide 25
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