DS200SDCIG1ABA - Power Supply and Instrumentation Board

SPECIFICATIONS

Part No.: DS200SDCIG1ABA
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Temperature: 0 to 60 °C
Product Type: Power Supply and Instrumentation Board
Availability: In Stock
Series: Drive Control

Functional Description

DS200SDCIG1ABA is a Power Supply and Instrumentation Board developed by GE. It is part of Drive Control system. The Power Supply and Instrumentation Board (SDCI) stands as a pivotal component within the DC2000 drive system, offering crucial logic power and interface circuitry. This section explores the diverse circuits integrated into the SDCI board, providing an in-depth understanding of its capabilities.

Power Supplies and Monitoring Circuits

The board encompasses a range of power supplies, including +5 V dc, 4 A, -15 V dc, 0.4 A, -24 V dc, and 115 V ac, 0.4 A. Additionally, it plays a role in monitoring numerous ac line and dc motor signals, such as armature current and voltage, field current, and ac line currents, voltage magnitude, and phase sequence. These monitoring circuits contribute to the comprehensive functionality of the DC2000 drive system.

SDCIG2 Board for External Field Exciters

An exploration of the SDCIG2 reveals its purpose in applications exceeding 10 A, where external field exciters are required. The omission of certain field power circuitry distinguishes the SDCIG2 from its SDCI counterpart.

Power Supplies and Regulation

The board receives 38 V ac from the control power transformer (CPT), rectifying and filtering it to produce unregulated +24 V dc and -24 V dc outputs. Regulators derive -15 V dc from the +24 V dc supplies. The SDCI generates a +5 V dc, 4 A output from the +24 V dc supply, with the /PSEN signal providing insights into the regulation status.

Motor Field Control

DC2000 drives equipped with the board offer non-reversing, non-plugging (NRX) motor field control. A closer look reveals its role in providing internal 10 A NRX motor field control, complete with fused field outputs, a line reactor, and snubber circuits. Visual indicators, such as neon lights, assist in promptly identifying blown fuses for efficient diagnostics.

Field Power Circuitry and Current VCO

Incorporates a field power circuit for fields up to 10 A. A detailed examination of the field power circuitry contained within the board elucidates the inclusion of snubbers and a reactor. Critical aspects, such as field power input, filtering, and protection mechanisms, are explored, enhancing comprehension of the field power circuit's functionality.

Features

• The DC Power Supply and Instrumentation Board play a crucial role as an interface to DC2000 drives, facilitating their operational control. The board not only enhances troubleshooting capabilities but also improves usability through the incorporation of LED indicators associated with each fuse. These indicators serve as valuable tools, instantly signaling when a fuse blows, streamlining the identification of potential issues.
• To inspect the board and check for a lit indicator LED light, specific steps must be followed to ensure safety and accurate assessment. Opening the cabinet where the board is installed, visual inspection of the LED lights is conducted without direct contact due to the potential presence of high voltage. Any information about the identifier of the blown fuse is carefully documented.
• Subsequently, all power to the drive is removed, and the board is tested to ensure complete power disconnection. A waiting period may be necessary to allow residual power to exit the board, minimizing the risk of damage. Depending on the blown fuse, an inspection for wiring errors or shorts may be possible. In cases where the board appears defective, it might be necessary to remove and replace it.
• During the removal process, precautions are taken to prevent contact with other boards or devices in the drive. Touching panels, cables, or plastic snaps holding the board in place is avoided to prevent damage. Careful disconnection of all cables, with attention to ribbon cables, ensures a smooth removal process without any unnecessary strain on the connectors.
• It is equipped with Berg-type jumpers, identified by a JP nomenclature. These manually movable jumpers serve purposes such as manufacturing tests or accommodating customer options.

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

Frequently Asked Questions

What is DS200SDCIG1ABA?
It is a Power Supply and Instrumentation Board developed by GE under the Drive Control series.

What role does the Power Supply and Instrumentation Board play in the DC2000 drives?
It serves as a crucial interface to DC2000 drives, enabling operational control and enhancing overall functionality.

How does the board contribute to troubleshooting capabilities?
The board incorporates LED indicators associated with each fuse, significantly improving troubleshooting capabilities. These indicators promptly signal when a fuse blows, aiding in the quick identification of potential issues.

What are the steps for inspecting the board and checking for lit indicator LED lights?
To inspect the board and check for lit indicator LED lights, follow specific steps to ensure safety and accurate assessment. Open the cabinet where the board is installed, visually inspect LED lights without direct contact, and document information about the blown fuse.

How is power disconnected from the board during the inspection process?
To disconnect power from the board, all power to the drive is removed. It's essential to test the board to ensure complete power disconnection, and a waiting period may be necessary to allow residual power to exit the board, minimizing the risk of damage.