IS230SNTRH1A - Simplex Primary Turbine Protection DIN-Rail Module

SPECIFICATIONS:

Part Number: IS230SNTRH1A
Manufacturer: General Electric
Series: Mark VIe
Product Type: Simplex Primary Turbine Protection DIN-Rail Module
Power supply voltage: 24 V dc
Mounting: DIN-rail mounting
Technology: Surface mount
Input Signal Types: 4-20 mA, RTD
Output Types: Dry Contact Relay Outputs
Communication Options: RS-485
Operating temperature: -30° to 65°C
Size: 33.0 cm high x 17.8 cm wide
Repair: 3-7 days
Availability: In Stock
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

IS230SNTRH1A is a Simplex Primary Turbine Protection DIN-Rail Module manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Control Systems. This module functions as a real-time safety layer, independently processing turbine-related data such as overspeed, shaft vibration, bearing temperature, and pressure deviations. It is built to work as a standalone protective element or in coordination with a Distributed Control System (DCS) or Programmable Logic Controller (PLC). Equipped with analog and digital signal processing capabilities, it receives input from field sensors, evaluates these against configured thresholds, and activates protective relays when conditions exceed safe limits. The protective response may include turbine trip, fuel cut-off, or activation of emergency shutdown systems (ESD).

INTEGRATION WITH GE DISTRIBUTED CONTROL SYSTEM (DCS):

The module includes several built-in features designed to optimize performance, ease of use, and integration flexibility. Its compact design supports DIN-rail mounting, enabling quick installation in standard electrical enclosures. The housing is typically constructed from high-impact, flame-retardant materials, ensuring safe operation in demanding conditions. Input support includes 4–20 mA, RTD, thermocouple, and proximity probe compatibility. Output features include dry-contact relay outputs for shutdown or alarm, with configurable latching and fail-safe options. Diagnostic LEDs on the module provide immediate visual feedback regarding input status, relay state, and system faults. Communication options—when available—may include RS-485 (Modbus RTU), Ethernet (Modbus TCP/IP), or CAN bus protocols, allowing integration with supervisory control and data acquisition (SCADA) or human-machine interfaces (HMIs).

INSTALLATION:

The module is designed for easy installation on a standard 35mm DIN rail within a control cabinet. The panel should be vibration-isolated and housed in a temperature-controlled environment to ensure long-term reliability. Proper cable routing practices should be followed, with analog signal cables shielded and grounded at one end to minimize electromagnetic interference (EMI). Sensor and actuator connections should be made using clearly labeled terminal blocks with screw or spring clamps to ensure secure contact. The power supply input typically requires a 24V DC regulated source with appropriate circuit protection. Grounding of the module chassis and signal reference is essential to ensure operational integrity and protection against transient voltage disturbances.

CONFIGURATION AND CALIBRATION:

Configuration of the Simplex Protection Module is done through OEM-provided software, DIP switches, or front-panel controls, depending on the model. Key parameters to configure include alarm setpoints, delay timers, hysteresis levels, and output logic. For example, overspeed thresholds can be defined to activate a shutdown relay with a specific time delay to avoid nuisance trips. Calibration involves applying known input values—such as simulated RTD resistance or analog current loops—and adjusting gain/offset parameters to ensure accurate readings. Calibration must be conducted using certified equipment, and it is advisable to maintain a record for compliance and periodic audits.

WHY CHOOSE WOC?

WOC is a leading global supplier of OEM replacement parts for GE Distributed Turbine Control Systems, offering one of the largest inventories of new and rebuilt modules in the industry. In addition to supplying high-quality unused and refurbished components, we provide expert repair services with fast turnaround times and warranty-backed assurance. Our experienced team is available 24/7 to support your technical and automation needs, ensuring reliable performance and minimal downtime. For pricing, availability, or repair inquiries, please contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What is a Simplex Primary Turbine Protection DIN-Rail Module?

A Simplex Primary Turbine Protection DIN-Rail Module is a turbine safety device designed to monitor critical parameters such as overspeed, vibration, temperature, and pressure. It provides real-time protection by initiating trips or alarms when conditions exceed safe limits. The module is mounted on a standard DIN rail for easy installation inside control cabinets.

What signal inputs are supported by this module?

The module supports a range of analog and dynamic input types, including 4–20 mA current loops, RTD (Pt100), thermocouples (Type K, J, etc.), and proximity probe signals (eddy-current). Input conditioning and filtering are applied to reduce noise and ensure accurate measurements.

What protection logic is typically implemented in the simplex module?

Protection logic commonly includes overspeed trip, vibration trip, high bearing temperature trip, low/high pressure trip, and rate-of-change monitoring. Logic is configured with thresholds, delay timers, and hysteresis to prevent nuisance trips during transient conditions.

How does the module handle overspeed protection?

Overspeed protection is implemented using multiple setpoints (e.g., alarm and trip). The module compares measured speed against configured thresholds and activates a shutdown relay when the trip threshold is exceeded for the specified delay time. Speed input may be derived from proximity probes or speed sensors.