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GE IS230TNDSH2A Mark VIe Terminal Board for Discrete I/O
Product Overview
The GE IS230TNDSH2A is a high-performance discrete 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 connections between field devices (such as limit switches, solenoids, and relays) and Mark VIe I/O modules, enabling seamless signal transmission in safety-critical turbine control systems. The IS230TNDSH2A supports 16 discrete input channels and 16 discrete output channels, with built-in isolation to prevent ground loops and electromagnetic interference—key for maintaining signal integrity in harsh industrial environments.
Engineered for ruggedness, the IS230TNDSH2A 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 IS230TNDSH2A acts as a bridge between field sensors/actuators and the main control processor, translating raw discrete signals into actionable data for turbine protection and process optimization. Compliance with UL 508 and IEC 61010 standards underscores its reliability in regulated industrial settings, where safety and uptime are paramount.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | IS230TNDSH2A |
| Manufacturer | GE |
| Product Type | Discrete I/O Terminal Board |
| Series | Mark VIe Speedtronic™ |
| Input Channels | 16 discrete inputs (24V DC) |
| Output Channels | 16 discrete outputs (24V DC, 2A per channel) |
| Signal Isolation | 500V DC (channel-to-channel, channel-to-ground) |
| Power Supply | 24V DC (±10%) |
| Physical Dimensions | 140 mm (L) × 85 mm (W) × 30 mm (D) |
| Weight | 0.5 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-Density Discrete I/O: The IS230TNDSH2A offers 16 inputs and 16 outputs in a compact form, reducing the number of boards needed in control cabinets. This density optimizes space utilization, critical for crowded power plant or offshore platform enclosures. Each channel is isolated to prevent signal interference, ensuring reliable communication between field devices and Mark VIe modules.
Industrial-Grade Durability: With a -40°C to +70°C operating range and robust metal enclosure, the IS230TNDSH2A 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 input/output) and IS200TDBSH2A (terminal block accessories), creating a cohesive discrete control system. This compatibility simplifies retrofits, as existing Mark VIe users can integrate the IS230TNDSH2A without extensive reconfiguration.
Real-Time Diagnostics: Integrated LED indicators display power status, channel activity, and fault conditions (e.g., short circuits), 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 IS230TNDSH2A features screw terminals for secure wire connections, accommodating 14–22 AWG cables. This flexibility supports diverse field devices, from small limit switches to heavy-duty solenoids, enhancing its versatility across industries.
Application Fields
The GE IS230TNDSH2A is indispensable in industries relying on precise discrete control for turbine and industrial systems:
- Power Generation: In thermal, combined-cycle, and nuclear plants, it connects turbine trip switches, valve position sensors, and auxiliary motor relays to Mark VIe controllers. Its isolation prevents signal interference, ensuring accurate monitoring of safety interlocks—critical for preventing unplanned shutdowns.
- Oil and Gas: Offshore platforms and refineries use the IS230TNDSH2A to link emergency shutdown (ESD) buttons, pump status sensors, and compressor anti-surge valves 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 conveyor belt sensors, mixer start/stop relays, and process alarms. Its high channel count simplifies wiring for complex production lines, reducing installation costs.
- Marine Propulsion: Shipboard turbine systems use the IS230TNDSH2A to connect engine safety sensors (e.g., overheat alarms) and throttle control solenoids. 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 IS230TNDSH2A to process signals from field sensors and control actuators, ideal for turbine trip monitoring and valve control.
- GE IS200TDBSH2A: A terminal block accessory that complements the IS230TNDSH2A by providing additional signal conditioning and isolation for hazardous locations.
- GE IS230TBAIH2C: An analog I/O terminal board, complementary to the IS230TNDSH2A for systems requiring both discrete and analog control.
- GE IS220PAICH2A: A redundant power supply that provides 24V DC to the IS230TNDSH2A and other Mark VIe components, ensuring uninterrupted operation.
- GE IS230SNRTH2A: An RTD input module that integrates with the IS230TNDSH2A in systems needing both temperature monitoring and discrete control.
- GE IS220PPROH1A: A backup protection module that uses the IS230TNDSH2A for discrete 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 IS230TNDSH2A 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 IS230TNDSH2A, 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 IS230TNDSH2A, 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.
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
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