General Electric DS200SDCCG4A Mark V Controller Board

Product Description

The DS200SDCCG4A is a Drive Control Card manufactured by General Electric (GE) for the Mark V series of gas turbine control systems. It houses the main control software and circuitry for drive and exciter applications. The board uses three processors connected through dual-ported RAM to handle drive control, motor regulation, signal processing, and communication with other control boards.

Functional Description

The DS200SDCCG4A contains three processing units, each assigned to a specific control function. They work together through dual-ported RAM (DPR), which allows two processors to access shared memory independently and simultaneously.

The three processors perform the following functions:

• Drive Control Processor (DCP): Uses an 80C186 microcontroller (U1) to manage digital and analog I/O. Its integrated functions include DMA control, timers, counters, interrupt control, wait-state generation, and address decoding. The DCP software also manages external regulation loops, including speed and position control.
• Motor Control Processor (MCP): Uses an 80C196 microcontroller (U21) with high-speed I/O, analog I/O, digital I/O, timers, counters, and a watchdog timer. It executes inner-loop control functions, including current regulation, DC phase control, AC motion control, and general-purpose AC motor control.
• Co-Motion Processor (CMP): Uses a TMS320C25 digital signal processor (DSP, U35) for computationally intensive motor control algorithms. The CMP operates when the application requires additional processing capacity. It interfaces with dual-ported RAM and EPROM.

In addition, the SDCC includes interface circuitry that connects with other control boards. These interfaces process drive, motor, and user I/O signals for different AC and DC motor drive configurations.

Configurable Hardware

The DS200SDCCG4A includes configurable hardware that must match the intended drive or exciter application. It uses two types of jumpers:

• Berg-type jumpers (JP): Manually movable hardware jumpers used to select application settings.
• Wire jumpers (WJ): Wire-based jumper connections used for application options and factory testing.

Most jumper positions are preset at the factory. Factory-defined settings are documented on the test data sheets supplied with each controller, typically stored in the drive or exciter door pocket. Therefore, verify the existing jumper configuration before making any changes.

Software Configuration

Software modifications, downloads, and replacements require a compatible GE configuration tool. The documented options include:

• ST2000: A DOS-based software toolkit for configuring GE DIRECTO-MATIC 2000 control equipment.
• GE Control System Toolbox: A Windows-based software suite for configuring GE DIRECTO-MATIC 2000 equipment.
• LynxOS Drive Configurator: A configuration tool designed to run on a PC using the LynxOS operating system.

Furthermore, software changes require the corresponding tool instruction manual, a suitable PC, and the relevant drive or exciter instruction manual. The appropriate configuration environment depends on the control system and the intended modification.

Technical Specifications

Frequently Asked Questions

Q: What are the three processors on the DS200SDCCG4A used for?

A: The DCP handles drive control and external regulation loops, while the MCP manages motor control functions such as current regulation and motor-specific operations. Meanwhile, the CMP performs computationally intensive control algorithms when additional processing capacity is required.

Q: Can the jumper settings on the DS200SDCCG4A be changed?

A: Yes. The board includes manually adjustable JP jumpers and wire-based WJ jumpers. However, most positions are factory preset. Check the controller's original test data sheet and application requirements before changing any settings.

Q: Which software tools are required to configure the DS200SDCCG4A?

A: The documented tools include ST2000, GE Control System Toolbox, and LynxOS Drive Configurator. Each requires its corresponding instruction documentation and a suitable PC environment. Select the tool according to the control system and software modification required.

 Other Attributes

• Series: GE Multilin 350 Feeder
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of The GE General Electric Mark VI 

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