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GE IS230TNSVH3A Mark VIe Servo I/O Terminal Board
Product Overview
The GE IS230TNSVH3A is a high-performance servo I/O terminal board designed for GE’s Mark VIe Speedtronic™ turbine control system, a cornerstone of power generation, oil and gas, and industrial automation. As a critical interface component, this board facilitates precise control and monitoring of servo-driven actuators, such as steam turbine valves and gas compressor governors, by bridging the gap between field devices and Mark VIe I/O modules. The IS230TNSVH3A supports 3-channel analog input/output with high-resolution signal processing, enabling real-time adjustment of servo mechanisms in safety-critical turbine control systems.
Engineered for ruggedness, the IS230TNSVH3A operates reliably across -40°C to +70°C and features a durable metal enclosure, making it suitable for offshore platforms, power plants, and refineries. Its DIN rail mounting simplifies installation in compact control cabinets, while compatibility with Mark VIe I/O modules like IS220PDIOH1A and IS200TDBSH2A ensures seamless integration into existing systems. The board’s LED status indicators provide instant visual feedback on channel activity and fault conditions, enhancing diagnostic efficiency.
Within the Mark VIe ecosystem, the IS230TNSVH3A acts as a bridge between servo drives and the main control processor, translating control commands into analog signals for actuator positioning and vice versa. Compliance with UL 508 and IEC 61010 standards underscores its reliability in regulated industrial settings, where precision and uptime are paramount.
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | IS230TNSVH3A |
| Manufacturer | GE |
| Product Type | Servo I/O Terminal Board |
| Series | Mark VIe Speedtronic™ |
| Input Channels | 3 analog inputs (4–20 mA, ±10 V DC) |
| Output Channels | 3 analog outputs (4–20 mA, ±10 V DC) |
| Signal Isolation | 500V DC (channel-to-channel, channel-to-ground) |
| Power Supply | 24V DC (±10%) |
| Physical Dimensions | 240 mm (L) × 250 mm (W) × 55 mm (D) |
| Weight | 1.2 kg |
| Operating Temperature | -40°C to +70°C |
| Humidity | 5–95% non-condensing |
| Mounting Type | DIN rail-mounted |
| Compliance | UL 508, IEC 61010, CE |
| Country of Origin | United States |
Main Features and Advantages
High-Precision Servo Control: The IS230TNSVH3A offers 3-channel analog I/O with 16-bit resolution, ensuring precise control of servo-driven actuators in turbine systems. Its high-speed signal processing minimizes latency, critical for real-time adjustments in power generation and oil/gas applications.
Industrial-Grade Durability: With a -40°C to +70°C operating range and robust metal enclosure, the IS230TNSVH3A withstands extreme temperatures, vibration, and corrosive atmospheres—common in refineries and chemical plants. Its design resists dust and moisture, maintaining performance in environments where traditional terminal blocks might fail.
Seamless Mark VIe Integration: The board is specifically engineered to pair with Mark VIe I/O modules like IS220PDIOH1A (discrete I/O) and IS200TDBSH2A (terminal block accessories), creating a cohesive servo control system. This compatibility simplifies retrofits, as existing Mark VIe users can integrate the IS230TNSVH3A without extensive reconfiguration.
Real-Time Diagnostics: Integrated LED indicators display power status, channel activity, and fault conditions (e.g., signal drift), enabling technicians to quickly identify issues during maintenance. This reduces troubleshooting time, minimizing downtime in 24/7 operations like turbine control.
Flexible Wiring Options: The IS230TNSVH3A features screw terminals for secure wire connections, accommodating 14–22 AWG cables. This flexibility supports diverse field devices, from small servo drives to heavy-duty actuators, enhancing its versatility across industries.
Application Fields
The GE IS230TNSVH3A is indispensable in industries relying on precise servo control for turbine and industrial systems:
- Power Generation: In thermal, combined-cycle, and nuclear plants, it connects turbine governor valves, steam bypass actuators, and auxiliary motor drives to Mark VIe controllers. Its high-resolution analog signals ensure smooth load balancing and grid synchronization—critical for preventing unplanned shutdowns.
- Oil and Gas: Offshore platforms and refineries use the IS230TNSVH3Ato link compressor anti-surge valves, pump speed controllers, and emergency shutdown (ESD) actuators to control systems. Its rugged design withstands salt spray and vibration, maintaining reliability in harsh offshore conditions.
- Industrial Manufacturing: Chemical plants and paper mills deploy the board to manage mixer speed controls, conveyor belt tensioners, and process valve actuators. Its high channel count simplifies wiring for complex production lines, reducing installation costs.
- Marine Propulsion: Shipboard turbine systems use the IS230TNSVH3Ato connect engine throttle servos, propeller pitch controls, and rudder actuators. Its compact size fits in limited shipboard space, while its durability resists the effects of constant motion.
Related Products
- GE IS220PDIOH1A: A discrete I/O module that pairs with the IS230TNSVH3Ato process digital signals alongside analog servo control, ideal for turbine safety interlocks.
- GE IS200TDBSH2A: A terminal block accessory that complements the IS230TNSVH3Aby providing additional signal conditioning and isolation for hazardous locations.
- GE IS230TBAIH2C: An analog I/O terminal board, complementary to the IS230TNSVH3Afor systems requiring both discrete and analog control.
- GE IS220PAICH2A: A redundant power supply that provides 24V DC to the IS230TNSVH3Aand other Mark VIe components, ensuring uninterrupted operation.
- GE IS230SNRTH2A: An RTD input module that integrates with the IS230TNSVH3Ain systems needing both temperature monitoring and servo control.
- GE IS220PPROH1A: A backup protection module that uses the IS230TNSVH3Afor analog signal inputs, enhancing safety in turbine overspeed protection systems.
Installation and Maintenance
Pre-installation preparations: Ensure the DIN rail is securely mounted and grounded, with adequate space for wiring. Verify the 24V DC power supply meets voltage tolerances (±10%). Align the IS230TNSVH3A with the rail, secure it with clips, and confirm terminal labels match the wiring diagram. Before connecting field devices, test continuity of input/output channels using a multimeter to avoid short circuits.
Maintenance suggestions: Conduct monthly visual inspections to check for loose terminals, damaged wires, or dim LEDs—indicators of potential issues. Clean dust from the board using compressed air to prevent overheating. Quarterly, verify isolation between channels with a megohmmeter to ensure no degradation. When replacing the IS230TNSVH3A, label wires before removal to simplify reinstallation, and retest all channels post-installation to confirm proper operation.
Product Guarantee
Our company offers a one-year quality warranty service for the IS230TNSVH3A, covering hardware malfunctions not caused by human factors. During the warranty period, if the product shows abnormal performance or functional failure, we will provide replacement services. In addition, for discontinued models or urgent demands, relying on our global supply chain network, we can quickly respond to customers’ procurement needs for scarce spare parts, and provide reliable services to support the continuous and stable operation of industrial systems.
As a leading import and export trade distribution company with 17 years in the industrial control industry, we stock a large inventory of both common and hard-to-find models, ensuring we meet urgent spare part needs. Our expertise in GE and other major brands allows us to deliver reliable support for your automation systems.
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