IS230SNPRH1A - Emergency Protection DIN-Rail Module

SPECIFICATIONS:

Part Number: IS230SNPRH1A
Manufacturer: General Electric
Series: Mark VIe
Product Type: Emergency Protection DIN-Rail Module
Input Voltage: 24 VDC �10%
Mounting Type: Standard DIN-rail
Communication Protocol: Modbus RTU
Relay Contact Rating: 2�5 A
Operating Temperature: -20�C to +70�C
Storage Temperature: -40�C to +85�C
Vibration Standard: IEC 60068-2-6
Communication Interface: RS485
Common Mode Voltage Range: �5 V
Dimensions: 120 mm � 90 mm � 40 mm
Number of Analog Voltage Inputs: 6
Repair Time: 3�7 Days
Weight: 250 g
Availability: In Stock
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

IS230SNPRH1A is an Emergency Protection DIN-Rail Module manufactured and designed by General Electric as part of the VIe Series used in GE Distributed Gas Turbine Control Systems. A DIN-rail-mounted emergency protection module, such as IS230SNPRH1A, is an industrial safety I/O module designed to monitor critical turbine or rotating-equipment signals and execute protection logic independent of the main controller. The module continuously acquires key analog and/or discrete inputs from overspeed sensors, temperature detectors, vibration monitors, pressure switches, fire/gas detectors, and manual trip devices and compares them to preconfigured thresholds. Upon detecting a fault condition beyond safe limits, it activates dedicated relay outputs to initiate protective actions (e.g., turbine trip, emergency shutdown, fuel cut-off). The protection logic is typically configured via OEM software or onboard controls, and diagnostic LEDs provide a visual status of inputs, outputs, and internal faults.

• Processes real-time field inputs and evaluates them against safety thresholds.
• Produces fail-safe relay outputs to trigger shutdown or alarm devices.
• Works either standalone or in coordination with a DCS/PLC system (e.g., GE Mark VIe or similar control platforms).
• Often supports diagnostic functions, including fault indication and self-tests.

INSTALLATION:

The DIN-rail-mounted emergency protection module is installed by securely snapping it onto a standard 35 mm DIN rail within a grounded industrial control cabinet. A regulated 24 V DC power supply is connected to the designated power terminals with appropriate fusing or circuit protection to ensure uninterrupted and fail-safe operation. Field wiring for analog and discrete inputs, as well as relay or digital outputs, is terminated on the module�s removable terminal blocks in accordance with the system wiring diagram, using shielded cables for low-level or noise-sensitive signals. Proper cable segregation is maintained between power, signal, and communication wiring to minimize electromagnetic interference. The module chassis and cable shields are bonded to the cabinet ground to ensure signal integrity and personnel safety. Adequate spacing is maintained around the module to allow heat dissipation and to comply with specified ambient temperature and humidity limits before commissioning.

OPERATION:

During operation, the DIN-rail-mounted emergency protection module continuously acquires and conditions field input signals from connected sensors and protective devices. These signals are internally processed and evaluated against predefined protection thresholds, logic conditions, and timing parameters configured during system setup. When monitored parameters remain within allowable limits, the module maintains its outputs in the normal operating state. If an abnormal or unsafe condition is detected, the internal protection logic asserts the corresponding output channels to initiate emergency actions such as equipment trip, shutdown, or alarm activation. Output circuits are designed to operate in a fail-safe manner, ensuring a safe state during power loss or internal fault conditions. Module status, input activity, output states, and diagnostic information are indicated through onboard LEDs and, where applicable, communicated to the control system for monitoring and fault analysis.

WOC maintains one of the largest inventories of OEM replacement parts for GE Distributed Control Systems, ensuring immediate availability for a wide range of modules and components. In addition to supplying unused parts, we offer fully rebuilt and tested modules that meet OEM specifications, providing reliable performance and extended service life. Our repair services are designed to restore faulty boards to original operational standards, with turnaround times optimized for minimal downtime. Supported by a team of experienced automation engineers, we provide technical guidance and troubleshooting assistance around the clock, helping clients integrate, maintain, and optimize their control systems. For detailed information on pricing, availability, or to request a repair or replacement, our team is readily accessible via phone or email to provide prompt, professional support.

FREQUENTLY ASKED QUESTIONS:

What is the IS230SNPRH1A?

The IS230SNPRH1A is a DIN-rail-mounted emergency protection module from GE�s Mark VIe series. It monitors critical turbine and process signals and executes safety actions, such as trips or alarms, when measured parameters exceed predefined thresholds.

What types of inputs can it monitor?

The module accepts discrete inputs, such as overspeed switches, vibration alarms, and interlocks, as well as analog signals like temperature, pressure, and vibration transducers. Inputs are internally conditioned and isolated to ensure reliable detection and immunity to electrical noise.

How is the module powered?

The module requires a regulated 24 V DC supply with proper over-current protection. Redundant power sources may be used in critical applications to enhance reliability. The power design ensures fail-safe operation even during supply interruptions.