Overview
The GE DS2020VME0606CBDDDD8 Analog I/O Board is an analog input/output board designed for the GE Mark V turbine control system. It handles multiple signal types, including LVDT, servo valve, thermocouple, 4-20 mA, vibration, pulse, and voltage signals. Furthermore, its signal-conditioning circuits process analog inputs, while configurable software frame rates support different control and monitoring requirements.
Signal Processing and I/O Functions
The board supports several input signal types for industrial control and feedback applications:
- LVDT position feedback
- Servo valve signals
- Thermocouple signals
- 4-20 mA current signals
- Vibration signals
- Pulse signals
- Voltage signals
Furthermore, its signal-conditioning circuits scale and condition 4-20 mA inputs before the control system processes them. The described outputs include relay drivers, servo valve drivers, and generator and line signals.
Communication and Hardware Configuration
The board provides COM1 and COM2 communication connections, a 9-pin D-type connector, and 10BaseT/AUI Ethernet interfaces.
Hardware jumpers allow technicians to configure specific current circuits. J1 and J2 relate to the milliamp output circuit, while J5 and J6 select between 20 mA and 200 mA current ranges. Therefore, technicians should check the jumper positions against the required circuit configuration before installation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DS2020VME0606CBDDDD8 |
| Brand | General Electric (GE) |
| Product Type | Analog I/O Board |
| Associated Control System | Mark V |
| Input Signal Types | LVDT, servo valve, thermocouple, 4-20 mA, vibration, pulse, voltage |
| Output Signal Types | Relay driver, servo valve driver, generator and line signals |
| Signal Conditioning | 4-20 mA input scaling and conditioning |
| Communication Ports | COM1, COM2 |
| Connector Type | 9-pin D-type |
| Ethernet Interface | 10BaseT/AUI |
| Configurable Software Frame Rates | 10 ms, 20 ms, 40 ms |
| Hardware Jumpers J1/J2 | Milliamp output circuit |
| Hardware Jumpers J5/J6 | Current range selection |
| Selectable Current Ranges | 20 mA or 200 mA |
| Operating Temperature | -30 to 65 deg C |
| Storage Temperature | -40 to 85 deg C |
| Relative Humidity | 10-95%, non-condensing |
| Non-Operational Shock Resistance | Up to 10 G |
| Weight | Approximately 0.15 kg |
Environmental and Operating Conditions
The specified operating temperature range is -30 to 65 deg C, while the storage range extends from -40 to 85 deg C. Relative humidity must remain between 10% and 95%, without condensation.
In addition, the board has a stated non-operational shock resistance of up to 10 G. This figure applies when the board is not operating and should not be interpreted as an allowable shock level during normal operation.
Frequently Asked Questions
Q: What current ranges can the DS2020VME0606CBDDDD8 support?
A: The described hardware configuration provides 20 mA and 200 mA current range selections through jumpers J5 and J6. The correct jumper positions depend on the intended circuit configuration.
Q: What software frame rates are available?
A: The listed configurable frame rates are 10 ms, 20 ms, and 40 ms. The required setting depends on the control application’s timing requirements.
Q: What should technicians check before replacing this board?
A: Check the complete part number, connector arrangement, signal requirements, and jumper configuration. Furthermore, confirm the board’s exact function and system compatibility against the installed hardware documentation before selecting it as a replacement.
