DS200TCCBF1ACA - Software PROM Set

SPECIFICATIONS

Part Number: DS200TCCBF1ACA
Manufacturer: General Electric
Series: Mark V
Temperature -30 to + 65 oC
Altitude: 2000 m maximum
Relative humidity: 5 to 95 percent non-condensing
Surge: Designed to ANSI C37.90.1
Repair: 3-5 Days
Product type: Software PROM Set
Country of Manufacture: United States (USA)

Functional Description

DS200TCCBF1ACA is a Software PROM Set developed by GE under Mark V control system. EPROM ensures that essential instructions and parameters needed for the controllers' operation are preserved, even during power outages or system resets. While EPROM handles fixed memory, changes to system settings, such as sequencing and I/O assignments, are typically stored in Electrically Erasable Programmable Read-Only Memory (EEPROM), which allows for updates without requiring hardware modifications.

Analog Inputs and Outputs

• The control system is equipped to handle a variety of analog inputs, primarily sourced from transducers on the turbine, such as vibration or speed sensors. In addition to these primary inputs, the system can also accommodate signals from other types of transducers that operate within the 4-20 mA and 0-1 mA ranges. To support these transducers, each analog input can receive isolated 21 V DC excitation power directly from the Mark V system, ensuring reliable and consistent power supply.
• To provide flexibility and adaptability, the Mark V system features jumpers that allow for various configurations. These jumpers enable the selection between current and voltage inputs, which is essential for accommodating different types of transducers. In the case of current inputs, the system uses a burden resistor to convert the transducer current into a voltage signal. The burden resistor size can be adjusted via jumpers, allowing for precise tuning according to the specific requirements of the transducer and application. Additionally, grounding options can be configured to match the installation's grounding scheme, ensuring safety and proper operation.
• Signal processing in the Mark V involves the internal distribution of the converted voltage signals. In current input mode, the burden resistor-generated voltage is internally parallel wired using ribbon cables to the R, S, and T controllers, or just the R controller in simplex configurations. This parallel wiring allows the system to compare the signals received by each controller. Any discrepancies between the inputs from the three controllers are flagged as internal diagnostic faults. Despite these faults, the control and protection systems continue to perform their calculations using the median signal, ensuring continued operation even in the presence of a single faulty input.
• The  system is designed with robust diagnostic capabilities to maintain reliability and accuracy. It continuously monitors the analog inputs to ensure they remain within their proper ranges, detecting potential issues with transducers or wiring before they can affect the system's performance. This continuous monitoring, combined with the discrepancy detection mechanism, ensures that the system can promptly identify and respond to any abnormalities, maintaining the integrity and safety of turbine operations.

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FREQUENTLY ASKED QUESTIONS

What is DS200TCCBF1ACA?
It is a software PROM set developed by GE.

What types of analog inputs does the Mark V system accept?
The system primarily accepts inputs from transducers on the turbine, such as vibration or speed sensors. It also supports 4-20 mA and 0-1 mA inputs for other types of transducers.

How does the Mark V system provide power to transducers?
Each analog input can receive isolated 21 V DC excitation power from the Mark V system to power the connected transducer.

How can the input configuration be adjusted in the system?
The system features jumpers that allow for the selection of current or voltage input, adjustment of burden resistor size, and different grounding options. This flexibility accommodates various transducer requirements and installation conditions.