Description
Product Description
GE IS230TNSVH3A (also cross – referenced as IS200TSVCH1A) is a servo I/O terminal board designed for GE Mark VI Speedtronic turbine control systems, playing a key role in connecting field devices such as servo valves, LVDT position sensors, and analog transducers to the VTCC processor module. GE IS230TNSVH3A is equipped with two barrier – type terminal strips (TB1 and TB2), each with 24 channels, supporting various analog signals like LVDT inputs, 4-20 mA inputs/outputs, servo valve outputs, and thermocouple (E, J, K, T type) inputs. GE IS230TNSVH3A offers signal conditioning and galvanic isolation to ensure accurate and reliable data transmission in harsh industrial environments with vibration, temperature fluctuations, and electrical noise. GE IS230TNSVH3A is compatible with VME – based Mark VI control racks, using JRA/JRB, JSA/JSB, JTA/JTB connectors to interface with VTCC processors, and hardware jumpers for flexible signal range configuration (e.g., 20 mA/200 mA output selection via J5/J6). GE IS230TNSVH3A is a genuine GE Speedtronic component, ensuring seamless integration with Mark VI TMR (Triple Modular Redundancy) or simplex systems for gas/steam turbine management. GE IS230TNSVH3A is easy to install and maintain, reducing downtime during system upgrades or replacements, which makes it a preferred choice for power generation and industrial turbine applications.
Technical Parameters
- Product Type: Servo I/O Terminal Board (Analog I/O Interface)
- Manufacturer: GE (General Electric) Speedtronic
- Cross – Reference: IS200TSVCH1A
- Terminal Strips: 2 barrier – type (TB1, TB2), 24 channels each (total 48 channels)
- Signal Compatibility: LVDT inputs, 4-20 mA I/O, servo valve outputs, E/J/K/T thermocouple inputs
- Processor Interface: JRA/JRB, JSA/JSB, JTA/JTB connectors (VTCC processor – compatible)
- Jumpers for Configuration: J1/J2 (mA output circuit selection), J5/J6 (20 mA/200 mA range), J7 (RS232 test), J8 (oscillator enable)
- Isolation: Galvanic isolation between field and control side
- Operating Environment: -40°C to +70°C, 5% – 95% RH (non – condensing)
- Power Supply: 24 V DC (from Mark VI control rack), max power consumption 5 W
- Certifications: IEC, CE, UL compliant for industrial control and safety standards
Advantages and Features
- High Channel Density: GE IS230TNSVH3A has 48 channels in total, supporting multiple servo/analog signals on a single board, which reduces rack space and wiring complexity.
- Flexible Signal Conditioning: Hardware jumpers enable on – board signal range configuration, eliminating the need for external signal converters.
- Robust Isolation: Galvanic isolation protects the VTCC processor from field – side electrical noise and transients, enhancing system reliability.
- TMR – Compatible: GE IS230TNSVH3A works seamlessly with Mark VI TMR systems, meeting the high availability requirements of critical turbine control.
- Genuine GE Quality: As an original Speedtronic component, GE IS230TNSVH3A ensures long – term compatibility and support for Mark VI systems.
- Easy Maintenance: Tool – friendly terminal blocks and plug – in connectors speed up installation and troubleshooting.
Application Fields and Cases
GE IS230TNSVH3A is widely used in gas/steam turbine control systems across power generation and heavy industry:
- Thermal Power Plants: Used in Mark VI systems to control steam turbine governor valves via servo outputs and monitor LVDT position feedback for speed and load regulation.
- Combined Cycle Power Plants: Interfaces with gas turbine fuel control servo valves and temperature sensors (thermocouples) for efficient combustion management.
- Industrial Turbine Drives: Deployed in oil & gas pipeline compressors and chemical plant turbine systems to ensure precise speed and process control.
Case Example: A European combined – cycle power plant upgraded its Mark VI turbine control system with GE IS230TNSVH3A to replace aging servo I/O boards. GE IS230TNSVH3A integrated 32 LVDT inputs and 16 servo valve outputs, reducing signal noise by 40% and eliminating intermittent control faults. Post – installation, the plant achieved a 25% reduction in unplanned downtime related to I/O failures and improved turbine efficiency by 1.2% through more accurate position control.
Comparison with Competing Products
| Parameter | GE IS230TNSVH3A | Competitor 1 (Emerson Ovation SVI Board) | Competitor 2 (Siemens T3000 Servo I/O) |
|---|---|---|---|
| Channel Count | 48 (2×24) servo/analog channels | 32 channels | 40 channels |
| TMR Support | Native Mark VI TMR compatibility | Requires external TMR module | Limited TMR integration |
| Isolation | Galvanic isolation | Optical isolation | Galvanic isolation |
| Jumpers for Configuration | Yes (20 mA/200 mA, test modes) | Software – configured | Hybrid (software + jumpers) |
| Power Consumption | 5 W max | 7 W max | 6 W max |
| Turbine Compatibility | GE Mark VI Speedtronic | Emerson Ovation | Siemens T3000 |
Selection Recommendations and Precautions
Selection Recommendations
- Select GE IS230TNSVH3A for Mark VI turbine control systems requiring servo valve/LVDT/thermocouple integration with VTCC processors.
- For TMR systems, pair GE IS230TNSVH3A with redundant VTCC modules to maximize availability.
- Confirm signal types (LVDT, 4-20 mA, thermocouple) and channel count to match field device requirements.
- Use genuine GE jumpers and cables for proper signal conditioning and interface compatibility.
Precautions
- Do not exceed the operating temperature range (-40°C to +70°C) or humidity limits (5% – 95% RH non – condensing) to prevent board damage.
- Follow GE’s wiring guidelines for barrier – type terminals to maintain isolation and signal integrity.
- Configure jumpers (J1/J2, J5/J6, etc.) correctly before power – up to avoid signal range errors.
- Use ESD – safe handling procedures during installation to protect sensitive components.
- Regularly inspect terminal connections and jumpers for signs of corrosion or loosening, especially in high – vibration environments.
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