GE IS420YDOAS1BProduct NameGE IS420YDOAS1B Mark VIe Discrete Output I/O Pack (12 Relay Channels, IONet, 24 VDC Auxiliary Power, Simplex/TMR Redundancy Compatible).Product DescriptionThe GE IS420YDOAS1B is a rugged discrete output I/O pack belonging to the Mark VIe control system family, designed for high-reliability switching and actuation in power generation (gas/steam turbines, generators), oil & gas, and industrial process control applications. It features 12 independent relay output channels with coil monitoring to detect faults and ensure safe operation, supporting both simplex and triple modular redundancy (TMR) architectures for mission-critical deployments. It interfaces to the Mark VIe IONet via dual RJ45 connectors for deterministic control signaling, with a DC37 connector for output terminations. Key capabilities include configurable on/off delays, fault diagnostics, and status indication per channel, enabling seamless integration into DCS/SCADA systems for remote monitoring and control. It is engineered to operate in harsh industrial environments with wide temperature ranges and vibration tolerance, making it ideal for turbine protection, breaker control, and valve actuation.Key Parameters & Specifications
| Category | Specification | Notes (Discrepancy Alert) |
|---|---|---|
| Manufacturer | GE (GE Digital/Turbine Control) | Mark VIe series; not Mark V or generic I/O |
| Model Number | IS420YDOAS1B (YDOA functional prefix) | Confirm order suffix for variants |
| Product Type | Discrete Output I/O Pack (relay outputs) | 12 channels with coil monitoring |
| Output Channels | 12 relay outputs; coil monitoring per channel | For switching actuators, valves, breakers |
| Communication | IONet (Mark VIe system bus); dual RJ45 connectors | Deterministic control network |
| Termination | DC37 pin connector for output wiring | Standard for Mark VIe I/O packs |
| Auxiliary Power | 24 VDC (typical for Mark VIe I/O) | Confirm nameplate for exact rating |
| Redundancy | Simplex or TMR (Triple Modular Redundancy) compatible |