GE Mark VIeS | IS420YDOAS1B | Discrete Output I/O Pack

Product Overview

The GE IS420YDOAS1B is a Discrete Output I/O Pack designed for General Electric’s Mark VIe Turbine Control System Series, used for managing wind, gas, and steam turbine drive assemblies. This pack represents a revision of the IS420YDOAS1 model, enhancing performance and functionality within the Speedtronic control system framework. It supports both Ethernet-based communication and terminal board-specific feedback, making it integral to turbine control applications.

Key Features and Specifications

Interface: Connects to two Ethernet input-output networks and a discrete output terminal board.
Output Control: Supports up to 12 relays with feedback capability.
Diagnostic LEDs: Includes 12 yellow LEDs for relay command status and additional LEDs for system diagnostics.
Processor Board: Equipped with a BPPC Processor Board.
Connector Types:
- Dual Ethernet RJ45 connectors for input.
- Three-pin power input.
- DC37 pin connector for output.
Protective Design: Features a robust chassis for circuit board protection.

Technical Details:

Technology: Surface-mount.
Relay and Coil Monitoring: 12 relay/coil monitors.
Redundancy Compatibility: Simplex or TMR.
Ambient Temperature Range: -40 to 158°F (-40 to 70°C).
Response Time: 6 ms.
Dimensions: H 3.25 in x W 1.65 in x D 4.78 in.

Diagnostic Indicators

ATTN LED: Displays operational status with red or green indicators. Patterns include:
- Green, 2 Hz (50%): Application is online.
- Two 4 Hz pulses every 4 seconds: Application is functioning as expected.
Common Alarms:
- Alarm 5: I/O pack in remote I/O mode, potentially caused by hardware failure or invalid configuration.
- Solution: Replace the pack/module or reconfigure the system.

Applications

The IS420YDOAS1B is ideal for:

Real-time control of GE-compatible turbines.
Integration into Mark VIe control systems for improved performance and reliability.
Scenarios requiring diagnostic feedback and robust environmental tolerance.

Frequently Asked Questions

1. Why is the IS420YDOAS1B revision considered functional?
The “B” revision enhances the base model’s performance specifications, improving functionality and reliability.

2. Is the BPPC Processor Board available for purchase or repair?
Yes, the BPPC Processor Board is available in both new and reconditioned conditions for purchase or repair.

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