GE Mark VIe System Manual page 25

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.
# packs
Pack
PAMCH1A 1 or 2
1
PCLAH1A
PCLAH1B
3
1
PCAAH1A
PCAAH1B
3
1, 2, or 3
PEFVH1A
PGENH1A 1 or 3
PVIBH1A
1 or 3
PVIBH1B
PSVOH1A
1 or 3
PSVOH1B
PSVPH1A 1
1, 3
PTURH1B
1
PTURH1A
3
Control System Overview
Turbine Applications
Terminal Board
Acoustic Monitor for MS 6, 7, 9 gas turbines: 18 inputs and buffered outputs
SAMBH1A
UCSA used as I/O pack to interface with BAPA for acoustic monitoring function
SCLSH2A
Core Analog I/O for aero-derivative turbines
SCLTH2A
TCASH2A
Core Analog I/O for heavy duty gas turbines
TCATH2A
Electric Fuel Valve Gateway to Woodward™ DVP
TEFVH1A
Used for Power Load Unbalance (PLU) and has three 1-phase PTs, three V/I inputs. Analog inputs are box-type and
TGNAH1A
removable. Current transformer (CT) inputs are barrier-type and not removable.
TVBAH1A
Refer to GEH-6721_Vol_II for a complete listing of supported inputs.
TVBAH2A
TVBAH2A and TBVAH2B include buffered outputs and BNC connectors.
TVBAH1B
TVBAH2B
Servos: 2 channels, 2-coil outputs, 8 LVDTs and excitation, 2 pulse rate inputs (heavy
TSVCH1
duty & Aero-derivative gas & steam)
TSVCH2A
Steam servo applications: 2 channels, 2-coil outputs, 6 LVDTs and 2 excitation, 1
SSVPH1A
pulse rate input for speed feedback
SSVPH2A
TTURH#C
Turbine Specific Primary Trip, 48 points
STURH#A
Aeroderivative Turbine Primary Trip, 48 points
TRPAH#A
Public Information
Terminal Block Type
Removable, Box
Removable, Box
Removable, Box
N/A
Removable, Barrier
Removable, Barrier
Removable, Barrier
Removable, Box
Removable, Barrier
Removable, Box
Removable, Barrier
GEH-6721_Vol_I_BP System Guide 25