1. Product Overview
The GE IS220PDIAH1A (336A4940CSP1) is a high-reliability Discrete Input (PDIA) I/O Pack designed for GE Speedtronic Mark VIe turbine control systems, serving as a critical interface for discrete signal acquisition from field devices (e.g., limit switches, pushbuttons, relay contacts) in gas, steam, and aeroderivative turbine applications. It integrates a local real-time processor, dedicated discrete input acquisition hardware, and dual 100Mbps full-duplex Ethernet ports to link I/O networks with discrete input terminal boards (e.g., IS200TBCIH4C, IS200STCIH1A). Supporting 32 channels of 24VDC discrete inputs (sink/source configurable), the module features 7 LED status indicators for power, communication, and channel-level diagnostics, and is compatible with simplex/dual/triple modular redundant (TMR) systems for critical power generation applications. With a rugged industrial design (-40°C to +70°C operating range) and compliance with UL 508, IEC 61326-1, it ensures 24/7 performance in power plants, oil & gas facilities, and industrial turbine installations.
Key Specifications
• Model: IS220PDIAH1A | Order Code: 336A4940CSP1 | Brand: GE | Series: Speedtronic Mark VIe
• Type: Discrete Input (PDIA) I/O Pack for Turbine & Industrial Control Systems
• Discrete Inputs: 32 Channels (24VDC, Sink/Source Configurable; 2ms Response Time)
• Communication: Dual 100Mbps Full-Duplex Ethernet (RJ-45) for IONet Connectivity
• Terminal Board Compatibility: IS200TBCIH4C, IS200STCIH1A, IS200STCIH8A, IS200TBCIH2C
• Redundancy: Supports Simplex/Dual/Triple Modular Redundant (TMR) Mark VIe Configurations
• Power Supply: 24V DC (3-Pin Connector); Power Consumption: 4.8W (Typical), 5.5W (Max)
• Environmental: Operating -40°C to +70°C; Storage -55°C to +85°C; Humidity 5-95% (Non-Condensing)
• Dimensions: 51mm (W) × 83mm (H) × 127mm (D); Weight: 0.5kg (1 lbs)
• Certifications: CE, UL 508, IEC 61010-1, IEC 61326-1; ATEX Zone 2 (UL DEMKO 12 ATEX 1114875X)
2. Core Features
• High-Speed Discrete Input Processing: 32 Channels with 2ms Response for Real-Time Turbine Monitoring
• Flexible Input Configuration: Sink/Source Selectable per Channel to Match Field Device Types
• Dual Ethernet Redundancy: Ensures Uninterrupted IONet Communication with Mark VIe Controllers
• TMR Compatibility: Works with Triple Redundant Mark VIe Systems for Fault-Tolerant Control
• Advanced Diagnostics: 7 LED Indicators (Power, Comms, Channel Status) + Local Temperature Sensor (±2°C Accuracy)
• Hot-Swappable Design: Supports Online Replacement in Redundant Configurations (No System Shutdown)
• Terminal Board Flexibility: Compatible with Multiple Mark VIe Discrete Input Terminal Boards
• Rugged Industrial Build: Conformal Coating for Dust/Humidity/Vibration Resistance
YMGK Purchase Information
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3. Typical Applications
• Power Generation: Gas/Steam Turbine Control (Limit Switch, Valve Position, Trip Signal Monitoring)
• Oil & Gas: Pipeline Compressor Turbines; Offshore Platform Power Systems (Discrete Safety Interlocks)
• Industrial Turbines: Cogeneration Plants; Combined Cycle Power Systems (Auxiliary Equipment Control)
• Marine: Shipboard Propulsion Turbines; Onboard Power Generation (Mark VIe Marine Configurations)
• Critical Infrastructure: Emergency Power Systems; Data Center Backup Generators (Turbine Safety Logic)
• Process Industry: Refineries, Chemical Plants (Turbine-Driven Pump/Compressor Discrete Control)
4. Installation & Maintenance
Installation: Mount in Mark VIe I/O Chassis; Connect 24V DC Power; Wire Terminal Board to Field Devices; Configure Dual Ethernet (IP Address, Subnet); Verify LED Status (Power ON, Comms Active, No Fault).
Maintenance: Weekly: Check LED Indicators & Ethernet Connectivity; Monthly: Test Discrete Input Channels via ToolboxST; Annual: Inspect for Dust/Corrosion; Update Firmware via Mark VIe IONet.
Safety Notes: De-Energize Chassis Before Installation/Maintenance; Use ESD Protection; Follow GE Mark VIe Safety Guidelines; Isolate High-Voltage Circuits from Control Wiring.
Technical Document | GE IS220PDIAH1A 336A4940CSP1 | Mark VIe PDIA Discrete Input I/O Pack for Industrial Turbine Control
