DS200RTBAG2AHC - Relay Terminal Board

SPECIFICATIONS

Part No.: DS200RTBAG2AHC
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Temperature: 0 to 60 °C
Product Type: Relay Terminal Board
Availability: In Stock
Series: EX2000

Functional Description

DS200RTBAG2AHC is a relay terminal board developed by GE. It is a part of EX2000 excitation system. It is an optional component situated within the drive (or exciter) cabinet. This board plays a crucial role in enhancing the functionality and control capabilities of the system. The RTBA board is equipped with ten relays, each serving specific purposes. These relays can be activated either directly from the pilot relays on the LAN I/O Terminal Board (LTB) or remotely by the user, providing flexibility in control options.

Features

• Relay Types and Contact Configurations:mAmong the ten relays on the board, seven are designed with two Form C contacts (Double Pole, Double Throw - DPDT relays), while the remaining three feature four Form C contacts (Four Pole, Double Throw - 4PDT relays). This diverse configuration allows for versatile applications, accommodating various operational requirements.
• Coil Voltage Specifications: The coil voltage for the relays on the board is standardized at 24 V dc. This ensures compatibility with the overall power system and contributes to the reliable and efficient functioning of the board.
• Integration with LAN I/O Terminal Board: The RTBA board seamlessly interfaces with the LAN I/O Terminal Board, drawing upon the pilot relays for direct activation. This integration enhances the communication and coordination between different components within the system.
• User-Driven Remote Activation: In addition to the direct activation from the pilot relays, users have the option to remotely control the relays on the RTBA board. This feature empowers operators and system administrators to adapt and customize relay configurations based on specific operational needs.
• Contact Types and Functions: The Form C contacts on the relays offer a versatile switching capability, allowing the board to engage in various functions within the drive or exciter system. The DPDT and 4PDT relay configurations cater to a wide range of applications, enhancing the adaptability and versatility of the overall system.
• Relay Descriptions and Types: The board incorporates ten relays, each designated with a specific identifier ranging from K20 to K29. These relays are categorized into two types: K20 to K26 are Double Pole, Double Throw (DPDT) relays, while K27 to K29 are Four Pole, Double Throw (4PDT) relays, as illustrated in Figure 1. Notably, each relay is equipped with an LED indicator positioned at the top of the relay inside the case, providing visual confirmation when the relay is energized.
• Protection Mechanism: To ensure the integrity of the I/O (Input/Output) of the relays, the system incorporates 130 V ac metal oxide varistors (MOVs). These protective components safeguard against voltage fluctuations and potential damage to the relay circuitry.

Relay Replacement Procedure

• Power Off Procedure: Turn off the power to the drive to ensure a safe environment for the replacement process.
• Accessing the Board: Open the drive's cabinet door to gain access to the RTBA board. Typically located below the drive's board rack, the RTBA board is readily accessible for maintenance.
• Retaining Clip Removal: Remove the retaining clip for the relay slated for replacement. This involves pressing on the top of the clip and pulling on either side to release it from its position.
• Relay Removal: Extract the old relay by pulling it straight out from the relay socket, disconnecting it from the circuit.
• New Relay Orientation and Installation: Orient the new relay correctly on the socket, ensuring it fits in only one way. Press the relay into a seated position within the socket to establish a secure connection.
• Retaining Clip Replacement: Place the retaining clip on the new relay by centering it over the relay and pressing on the top until the bottom of the clip engages on the relay socket. This step ensures the new relay is securely fastened in place.

Configurable Hardware

• Incorporating a user-friendly and adaptable design, the RTBA is equipped with configurable hardware elements in the form of Berg-type (manually movable) hardware jumpers. These jumpers play a crucial role in determining the board's functionality and must be correctly set to align with the specific application requirements. Identified by a JP nomenclature, these jumpers offer a versatile means of customization, enabling users to tailor the board to meet their unique operational needs.
• Manual Adjustment and JP Nomenclature: The Berg-type hardware jumpers on the board are designed for manual adjustment, providing operators with the flexibility to configure the board according to the demands of the application. Each jumper is labeled with a JP nomenclature, simplifying the identification process and ensuring precise configuration settings.
• Factory-Set Jumper Selections: To streamline the configuration process and facilitate ease of use, the majority of the jumper selections on the board come pre-configured from the factory. This pre-setting minimizes the complexity of initial setup, ensuring that the board is ready for operation upon installation. Detailed information regarding these factory-set positions can be found in the data sheets accompanying each controller. These data sheets, conveniently stored in the drive/exciter door pocket, serve as valuable references for users, providing clear instructions on the default settings and configurations.
• User Guidance from Data Sheets: The data sheets supplied with each controller offer comprehensive guidance on the configuration options available. Users can refer to these documents to ascertain the factory-set positions of the Berg-type jumpers. This information is pivotal for understanding the initial configuration and ensuring compatibility with the specific controller and application.
• Application-Specific Customization: While many jumper selections are factory-set, the manual adjustability of the Berg-type jumpers allows for further customization based on specific application requirements. This adaptability empowers users to fine-tune the RTBA board to optimize its performance in diverse operational scenarios.

The WOC team is always available to help you with your EX2000 requirements. For more information, please contact WOC.

Frequently Asked Questions

What is DS200RTBAG2AHC?
It is a Relay Terminal Board developed by GE under the EX2000 series.

What connectors are responsible for the Input/Output (I/O) communication between the RTBA and the LTBA?
It employs a 16-pin connector (RPL) and a 2-pin connector (OPTPL) to facilitate I/O communication with the LTBA board. These connectors play a crucial role in ensuring seamless connectivity and data exchange between the two boards.

Are there specific signals on the RPL connector that can be configured based on application requirements?
Yes, certain signals on the RPL connector are jumper selectable, providing users with the flexibility to configure them according to specific application needs.

What is the purpose of the stab connectors CPH and CPN on the board?
The stab connectors CPH (control power hot, positive) and CPN (control power negative) are designed to supply control power to certain pluggable circuits. The usage of these stab connectors is also jumper selectable, allowing users to tailor the control power source based on their requirements.

How can I access the pluggable circuits and relays K27 to K29 on the board?
It provides access to pluggable circuits and relays K27 to K29 through connectors C1PL to C5PL and Y9PL to Y37PL. These connectors serve as entry points for external connections and enable the integration of additional components or peripherals with the board.