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SPECIFICATIONS:
Part Number: IS210DSVOH1AA
Manufacturer: General Electric
Series: Mark VI
Product Type: Simplex Servo Input/Output Terminal Board
Number of inputs: 6 LVDT windings
Number of outputs: 2 servo valves
LVDT excitation output: 2 Outputs
Pulse rate input: 33 mVpk
Magnetic PR pickup signal: 150 V
Frequency: 3.2 ±0.2 kHz
Operating Temperature Range: -20°C to +60°C
Size: 23.8 cm high × 8.6 cm
Weight: 0.8kg
Repair: 3-7 days
Availability: In Stock
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
IS210DSVOH1AA is a Simplex Servo Input/Output Terminal Board manufactured and designed by General Electric as part of the Mark VI Series used in GE Speedtronic Gas Turbine Control Systems. The Simplex Servo Input/Output (DSVO) terminal board is a compact, DIN-rail mountable board designed for turbine control applications. It features two servo outputs, I/O connections for up to six LVDT position sensors, and two active pulse rate inputs for flow measurement. Servo coil currents can be configured from 10 to 120 mA using onboard jumpers. The DSVO board connects to the VSVO processor board via a 37-pin cable, identical to the cable used for the larger TSVO terminal board. For applications requiring additional I/O, two DSVO boards can be connected to a single VSVO board. Designed to save cabinet space, DSVO boards can be stacked vertically on the DIN rail. This board is available only in a simplex configuration. Functionally, the DSVO offers the same on-board features and high-frequency ground decoupling as the TSVO board. It includes high-density Euro-Block terminal blocks, which are permanently mounted and secured with six screws for the SCOM ground connection. Connectors JR1 and J5 interface with on-board ID chips, which help the VSVO identify the board for system diagnostics.
OPERATION:
The DSVO terminal board supports two servo outputs, six LVDT inputs, and two active pulse rate inputs for precise turbine control and flow measurement. Servo coil current levels (10–120 mA) are configured via jumpers. On-board ID chips communicate with the VSVO for automatic board identification and system diagnostics. The board includes high-frequency decoupling to ground and is DIN-rail mountable, with a vertically stackable design to optimize cabinet space.
INSTALLATION:
Mount the plastic holder onto the DIN rail, then slide the DSVO board into place. Connect the servo I/O wiring directly to the permanently mounted Euro-Block terminal block. The terminal block includes 36 terminals on the DSVOH1A model, and 42 terminals on the DSVOH1B and H2B versions. Use shielded #18 AWG wire for connections, keeping cable lengths as short as possible for optimal performance.
COMPATIBILITY:
The DSVO terminal board is compatible with the VSVO processor board, using a standard 37-pin connection cable. It is designed for use in simplex Mark VIe control systems and functions seamlessly with associated GE turbine control components. Two DSVO boards can be connected to a single VSVO if expanded I/O capacity is required.
WOC offers the industry’s largest inventory of replacement parts for GE Speedtronic Gas Turbine Control Systems, including both unused and refurbished components, each backed by a comprehensive warranty. We also provide expert repair services for faulty boards to ensure minimal downtime. Our team of automation specialists is available 24/7 to support all your OEM requirements. For parts, repairs, or technical support, contact us by phone or email. We are dedicated to delivering fast, reliable, and knowledgeable service.
What is the function of the Simplex Servo I/O Terminal Board?
The Simplex Servo I/O Terminal Board is designed to interface servo mechanisms with a control system by providing input and output connectivity. It supports signal conditioning, isolation, and proper routing for feedback and control signals to and from servo drives or actuators.
What are the specifications for the LVDT excitation output?
The board provides two LVDT excitation outputs with a frequency of 3.2 ±0.2 kHz and a voltage of 7.00 ±0.14 V RMS. These outputs ensure accurate excitation for LVDT sensors, which are critical for precise position feedback in turbine systems.
What type of signals are supported for the pulse rate input?
The DSVO supports both magnetic and active pulse rate signals. The magnetic PR input, used on the DSVOH2B, generates 150 V peak-to-peak into a 60-ohm load. The active PR input, used on the DSVOH1B, generates signals ranging from 5 to 27 V peak-to-peak into 60 ohms.
