1. Product Overview

Basic Information

• Model: IS220PPDAH1B (Spare Part No.: 336A5026ADP14)

• Brand: General Electric (GE)

• Series: Mark VIe / Mark VIeS Speedtronic Turbine Control System

• Function: Power Distribution Feedback I/O Pack – conditions and monitors power distribution voltage, current, ground fault and fuse status signals, provides system status monitoring, fault diagnosis and communication interface for the Mark VIe control system.

• Compatible Backplanes: JPDC, JPDS, JPDM, JPDG power distribution backplanes; connects to JPDB, JPDF, JPDE boards via 50-pin ribbon cable.

Core Functions

1. Conditions and acquires two 115/230VAC analog feedbacks, six fused AC signals, and local ground signals for power distribution circuit monitoring.

2. Plug-and-play with auto-reconfiguration: automatically recognizes electronic ID and reads power distribution unit parameters; no manual configuration required for replacement.

3. Dual redundant RJ45 Ethernet (IONet) interfaces for communication with Mark VIe controllers, transmitting power status, alarms and diagnostic data.

4. Built-in 5 self-diagnostic tests; supports ground fault detection (with JPDE board) and LED status indication.

5. Industrial-grade conformal coating for anti-vibration and EMI resistance, suitable for harsh power plant and industrial turbine environments.

2. Key Hardware Specifications

1. Electrical Parameters

• Power Supply: 24VDC (backplane), power consumption ~5W, output 28VDC.

• Signal Inputs: 2×115/230VAC analog feedback, 6×fused AC signals, local ground monitoring.

• Communication: Dual redundant 10/100BaseT RJ45 Ethernet (IONet) for controller connection.

• Diagnostics: 5 built-in self-tests; LED indicators for run/fault/communication status.

2. Physical & Environmental

• Mounting: Plug-in type, fits Mark VIe rack, installed on JPDC/JPDS/JPDM backplanes.

• Dimensions: ~160mm×80mm×32mm; Weight: ~0.2kg.

• Operating Temp: -40°C to +70°C; Storage Temp: -55°C to +85°C; Humidity: 5%–95% (non-condensing).

• Protection: Conformal coating, industrial safety rated for hazardous/non-hazardous areas.

3. Certifications & Manuals

• Certifications: CE, UL, IEC 61010-1 and industrial safety standards.

• Manuals: GEH-6721L (Mark VIe System Hardware Guide), GEH-6861 (Functional Safety Manual).

3. Key Features & Benefits

1. Reliable Power Monitoring: Accurately captures critical power distribution signals for voltage, current, fuse and ground fault protection.

2. Plug-and-Play Convenience: Auto-identification and auto-reconfiguration enable hot-swapping, minimizing downtime and maintenance effort.

3. Redundant Communication: Dual Ethernet ensures no single point of failure for stable data transmission to the control system.

4. Comprehensive Diagnostics: 5 built-in self-tests plus ground fault detection enable early fault warning and reduced unplanned outages.

5. Industrial Durability: Wide temperature range, conformal coating and EMI resistance for gas/steam turbines, combined-cycle plants and industrial applications.

4. Typical Applications

• Gas/Steam/Combined-Cycle Power Plants: Generator excitation/auxiliary power distribution monitoring, status feedback and fault protection.

• Industrial Turbines & Compressors: Power circuit voltage/current/ground fault monitoring and safety interlocking.

• Power Plant DCS/Mark VIe Systems: Power distribution data acquisition, remote monitoring, alarm and diagnostics.