GE IS400TCATH1ADC Core Analog Terminal Board

• Brand
  GE
• Model
  IS400TCATH1ADC
• Product Name
  Core Analog Terminal Board / Core Analog Terminal Assembly Module
• Country of Origin
  United States
• HS Code
  8538909100
• Dimensions
  33.02 cm High x 17.8 cm Wide
• Weight
  3 kg
• Operating Temperature
  -30°C to +65°C
• Storage Temperature
  -80°C to +120°C
• Power Supply
  24VDC
• Warranty
  12 month
• Product Status
  New and original

GE IS400TCATH1ADC Input Channels

The TCAT board is equipped to handle a highly diverse array of simultaneous field sensor signals:

Standard Analog Inputs: 24 channels dedicated to 4-20 mA analog transmitter loops.

Seismic Inputs: 12 channels designed for seismic/vibration sensors to monitor case velocity, structural health, and shaft dynamics.

Displacement Inputs: 12 channels designated for Linear Variable Differential Transformer (LVDT) windings to deliver precise linear displacement and position feedback for turbine valves.

Pulse Rate Inputs: 2 channels for magnetic pulse rate flow or speed signals. (Minimum signal threshold is 33 mVpk at 2 Hz, scaling up to 827 mVpk at 12 kHz).

GE IS400TCATH1ADC Output Channels & Power Supply

Hardware Voted Outputs: 3 channels of 4-20 mA analog outputs utilizing Triple Modular Redundancy (TMR) hardware voting logic to ensure failsafe execution.

Excitation Power Outputs: 12 integrated 24 V DC output channels (maximum current capacity of 25 mA per branch) dedicated to powering standard 4-20 mA field transmitters.

System Power Input: Accepts 15 V DC and 28 V DC (±5% variance) routed directly from the connected upstream PCAA modules via internal interconnecting cables.The power paths use a diode-OR configuration to guarantee continuous operation if one power supply rails.

GE IS400TCATH1ADC Product Key Advantages

Fault-Tolerant TMR Architecture: Supports Triple Modular Redundancy (TMR) layouts by hardware-voting critical 4-20 mA outputs.If one control path suffers a fault, the remaining two override it seamlessly without bringing down the turbine asset.

Comprehensive Multi-Sensor Hub: Consolidates multiple highly specialized input formats—such as LVDTs, seismic probes, pulse meters, and standard loops—onto a single terminal footprint, drastically reducing cabinet clutter.

Smart Electronic Cable ID Verification: Every time the 68-pin cables are connected, the board generates a unique electronic ID sequence. The PCAA module reads this ID instantly to verify that the correct cables are plugged into the matching ports, preventing cross-wiring mistakes during commissioning.

Intelligent Branch Circuit Protection: Each individual 24 V DC excitation output channel contains an isolated voltage regulator complete with built-in thermal shutdown protection.If an overcurrent or short-circuit occurs on a single transmitter line, only that specific terminal shuts down, leaving the remaining loops perfectly operational.

Simplified Field Maintenance: The pluggable design of the Euro-style box terminal blocks allows technicians to replace or service the main assembly card rapidly without losing time to labor-intensive individual wire labeling and disconnection sequences.

GE IS400TCATH1ADC Wiring & Connectivity

Interface Assignment & Layout

The IS400TCATH1ADC eliminates complex manual point-to-point hardwiring through an organized, pluggable system:

Field Terminals: Equipped with 120 pluggable Euro-style box terminal connection points. These terminal blocks are divided into three clean structural groups on the left margin of the board (organized as 48 terminals, 24 terminals, and 48 terminals).

Grounding Configuration: A dedicated hardware jumper pin configuration is located next to each 4-20 mA input block.This allows field technicians to easily select whether the input return path runs floating (open) or tied directly to local system ground. The factory default setting is floating.

PCAA Module Linkage: Connected directly to the I/O processors via pairs of high-density 68-pin cables. The ports are uniquely assigned based on IONet redundancy: PR1/PR2 are routed to the R-channel PCAA, PS1/PS2 to the S-channel PCAA, and PT1/PT2 to the T-channel PCAA.

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  GE IS400TCATH1ADC
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