IS230PCAAH1BB - Core Analog Module

SPECIFICATIONS

Part No.: IS230PCAAH1BB
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Size: 33.02 cm high x 17.8 cm wide
Technology: Surface-mount
Operating Temperature: -30 to 65oC
Product Type: Core Analog Module
Availability: In Stock
Series: Mark VIe

Functional Description

IS230PCAAH1BB is a Core Analog Module developed by GE. It is a part of Mark VIe series. The Core Analog (PCAA) Module and Optional Core Analog (TCAT) Terminal Board are integral components facilitating analog signal input/output operations within a gas turbine system. The PCAA and TCAT modules encompass a comprehensive array of functionalities, including thermocouple inputs, 4-20 mA current loop I/O, seismic inputs, Linear Variable Differential Transformer (LVDT) excitation and inputs, pulse rate inputs, and servo coil outputs.The PCAA module is adaptable to both simplex and Triple Modular Redundant (TMR) systems, ensuring versatile applicability across different operational setups.

Integration

• Signal Distribution: A single TCAT terminal board efficiently distributes signal inputs to one or three interconnected PCAA modules, enhancing system scalability and efficiency.
• Power Management: Supplementary shield ground and 24 V field power terminals, situated on an adjacent JGPA board, complement the power distribution capabilities of the PCAA and TCAT, ensuring robust power management within the system.

Component Architecture

• PCAA Module Composition: Comprising a BPPx processor board, two application I/O boards, and a TCAS terminal board, the PCAA module constitutes a cohesive unit essential for analog signal processing within the gas turbine system.
• Modularity and Replacement: The PCAA module is designated as the least replaceable unit, with no provisions for diagnosing or individually replacing its constituent boards. This design emphasizes system integrity and reliability by promoting module-level maintenance and replacement procedures.

Wiring

• Terminal Block Configuration: The module is outfitted with a robust wiring infrastructure comprising 120 pluggable Euro style box-type terminal blocks. These terminal blocks serve as pivotal connection points, facilitating the seamless integration of various analog signal inputs and outputs within the gas turbine system.
• Adjacent Mounting Board: Adjacent to the module, a JGPA board is strategically mounted to augment the wiring capabilities of the system. Utilizing Euro style box-type terminal blocks, the JGPA board extends the functionality of the PCAA module by providing additional wiring options and termination points for enhanced signal management.
• Shield Termination Points: The JGPA board offers forty-eight shield termination points, denoted by a distinctive green marking. These termination points are instrumental in ensuring the integrity of signal transmission by effectively grounding and shielding against electromagnetic interference (EMI), thereby maintaining signal clarity and reliability.
• Power Distribution: In addition to shield termination points, the JGPA board facilitates power distribution within the system. It features twelve 24 V DC output terminals, identifiable by an orange marking, specifically designed to power 4-20 mA transmitters. This streamlined power distribution mechanism optimizes energy efficiency and ensures consistent power supply to critical components, enhancing overall system performance.

Input Channels

• Thermocouple Inputs: Boasts an impressive capacity of 25 thermocouple inputs, facilitating precise monitoring of temperature variations crucial for operational control and safety measures within the gas turbine system.
• 4-20 mA Inputs: In addition to thermocouple inputs, the module accommodates ten 4-20 mA inputs, enabling the integration of various sensors and instruments for monitoring critical parameters such as pressure, flow rates, and other analog signals essential for system performance assessment.
• Configurable Inputs: Furthermore, the module features two versatile inputs that can be configured to accept either 4-20 mA signals or ±10 V inputs, providing flexibility in accommodating diverse sensor types and signal formats to meet specific operational requirements.
• Pulse Rate Inputs: Two active pulse rate inputs are incorporated, facilitating the measurement and monitoring of pulse signals indicative of rotational speeds, flow rates, or other dynamic parameters crucial for system performance analysis and control.
• Servo Coil Suicide Relay Input
  A specialized input is dedicated to a servo coil suicide relay, affecting the first two servo outputs. This input plays a pivotal role in controlling and safeguarding the operation of servo mechanisms within the gas turbine system, ensuring precise and reliable actuation.

Output Channels

• Servo Coil Driver Outputs: The module features six servo coil driver outputs, providing robust control signals essential for actuating and regulating various mechanical components within the gas turbine system, such as valves, dampers, and actuators, ensuring precise and responsive control.
• 4-20 mA Outputs: In addition to servo coil driver outputs, the module offers two 4-20 mA outputs, facilitating the transmission of control signals or process variables to external devices or control systems, enabling seamless integration and interoperability with other components or subsystems.
• ±12 V DC Power Output: A dedicated ±12 V DC power output is provided, serving as a reliable power source for auxiliary devices or subsystems requiring stable DC power supply within the gas turbine system, ensuring uninterrupted operation and system reliability.
• LVDT Excitation Outputs: Six LVDT excitation outputs are integrated into the module, delivering precise and stable excitation signals necessary for the operation of Linear Variable Differential Transformers (LVDTs) used for position sensing and feedback applications within the gas turbine system, ensuring accurate and reliable position measurement and control.

The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS230PCAAH1BB?
It is a core analog module developed by GE under the Mark VIe series.

What checks are performed during the power-up self-test?
During the power-up self-test, the system conducts checks on various components including RAM, flash memory, Ethernet ports, and most of the processor board hardware to ensure proper functioning and readiness for operation.

How are internal power supplies monitored?
The system continuously monitors the internal power supplies to verify correct operation, ensuring stable and reliable power distribution throughout the system.

How does the system ensure hardware compatibility and application code correctness?
The system verifies electronic ID information from terminal boards, acquisition boards, and processor boards to confirm hardware compatibility. It then checks the application code loaded from flash memory to ensure it matches the hardware set, thereby ensuring proper system configuration and functionality.

What criteria determine the health of 4-20 mA analog inputs?
The system defines a specified high and low current range for valid signals from the 4-20 mA analog inputs. If a signal falls outside this range, it is deemed to be of poor health.