IS230TNIDH3A - Discrete Input DIN-Rail Module

SPECIFICATIONS:

Part Number: IS230TNIDH3A
Manufacturer: General Electric
Series: Mark VIe
Product Type: Discrete Input DIN-Rail Module
Number of relay channels: 24
Power supply voltage: 28 V dc
Technology: Surface mount
Operating temperature: -40 to +70�C
Storage Temperature Shipping: -40 to 80�C
Size: 15.9 cm high x 17.8 cm
Weight: 0.8kg
Repair: 3-7 Day
Availability: In-Stock
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

IS230TNIDH3A is a Discrete Input DIN-Rail Module manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Turbine Control Systems. Discrete Input DIN-Rail Modules serve as critical data acquisition interfaces in turbine control architectures, enabling real-time monitoring, event detection, and status updates from various field devices. These modules collect and transmit binary (ON/OFF) signals from limit switches, push buttons, pressure switches, safety interlocks, and proximity sensors to higher-level control systems, such as Programmable Logic Controllers (PLC), Distributed Control Systems (DCS), or Supervisory Control and Data Acquisition (SCADA) systems. By ensuring accurate signal acquisition and transmission, these modules contribute to precise turbine operation, fault detection, and safety compliance.

COMMUNICATION AND INTEGRATION:

Modern Discrete Input DIN-Rail Modules often support industry-standard communication protocols to facilitate integration with various automation systems. These may include Modbus RTU, Profibus, EtherNet/IP, and CANopen, which enable seamless data exchange between input modules and central control units like PLCs or industrial PCs. Some modules also feature expandable architectures, allowing additional I/O modules to be added without complex wiring modifications.

KEY FEATURES OF DISCRETE INPUT DIN-RAIL MODULES:

DIN-Rail Mounting: Discrete Input Modules are specifically designed for DIN-rail mounting, allowing for quick and efficient installation within turbine control panels. This standardized mounting method enhances modularity and scalability, enabling easy expansion of the control system by adding additional modules as needed. The compact design ensures that these modules fit seamlessly into industrial enclosures, reducing the footprint and improving overall cable management. Additionally, the clip-on mechanism simplifies maintenance and replacement, minimizing downtime in critical turbine operations.

High-Speed Signal Acquisition: In turbine control applications, real-time monitoring is crucial for safety and operational efficiency. Discrete Input Modules support fast signal processing, allowing the system to instantaneously detect critical events such as overspeed conditions, emergency stops, vibration alarms, and sensor activations. The high-speed nature of these modules ensures that even millisecond-level changes in turbine operation are accurately captured, processed, and relayed to the control system. This capability is essential in applications where a delay in response time could lead to catastrophic failures, equipment damage, or safety hazards.

Electrical Isolation & Noise Immunity: Turbine control environments are often subjected to electromagnetic interference (EMI), electrical surges, and transient voltages due to the presence of high-power machinery, generators, and transformers. To mitigate these issues, Discrete Input Modules incorporate opto-isolation and galvanic isolation, which electrically separate input signals from control electronics, preventing voltage spikes or interference from disrupting turbine operation. This design enhances signal reliability and accuracy, ensuring that input data remains unaffected by external disturbances, thereby improving the overall stability and robustness of the turbine control system.

Multiple Voltage Input Ranges: Turbine control systems operate at different voltage levels, depending on the application and sensor types used. To accommodate this, Discrete Input Modules support a wide range of input voltages, making them highly versatile across various power generation environments. For instance:

• 5V DC / 12V DC � Typically used for low-power logic circuits and microcontroller-based inputs.
• 24V DC � The industry standard for industrial automation and turbine control systems, providing a balance between power efficiency and reliability.
• 48V DC / 110V AC/DC / 230V AC � Suitable for high-voltage signal acquisition, especially in power plants and large-scale turbine applications where sensors and control switches operate at elevated voltages.

WOC has the largest stock of Replacement Parts for GE Distributed Turbine Control Systems. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What is the input impedance of a Discrete Input Module?

The input impedance of a Discrete Input Module depends on the voltage rating and design. Typically, it ranges from 2 k to 15 k, ensuring minimal power consumption while maintaining reliable signal acquisition. Modules designed for higher voltage inputs, such as 110V AC or 230V AC, have higher impedance values to limit current flow and reduce heat dissipation.

What is the debounce time in a Discrete Input Module, and why is it important?

Debounce time is the duration a module waits before registering a signal change, preventing false triggering due to mechanical contact bounce or electrical noise. Standard debounce times range from 1 ms to 50 ms, but configurable modules allow users to adjust this based on application requirements. Proper debounce settings are critical in turbine control systems where rapid and accurate signal processing is required.

How do Discrete Input Modules differentiate between AC and DC signals?

Modules designed for both AC and DC signal acquisition use rectifier circuits, zero-crossing detection, and filtering mechanisms to differentiate signal types. AC inputs often require frequency sensing to ensure proper signal registration, while DC inputs rely on voltage level thresholds to determine ON/OFF states.