GE IS220YDOAS1AK – Digital Output Module | Mark VIe Control Platform
Engineering Background
The IS220YDOAS1AK is a digital output (DO) I/O module developed by GE Vernova (formerly GE Energy) for the Mark VIe turbine control system. Designed to interface directly with the Mark VIe controller backplane, this module delivers deterministic, high-reliability discrete output signals to actuators, solenoids, relays, and other field devices in power generation and industrial automation environments.
Product Positioning
Engineered for mission-critical applications where output signal integrity and system uptime are non-negotiable. The IS220YDOAS1AK is a direct replacement and upgrade-compatible module for legacy GE Mark V and Mark VI installations undergoing modernization. It is widely deployed in gas turbine, steam turbine, combined-cycle, and compressor control systems globally.
Complete Technical Specifications
- Part Number: IS220YDOAS1AK
- Manufacturer: GE Vernova (GE Energy Controls)
- Platform: Mark VIe Turbine Control System
- Module Type: Digital Output (DO) I/O Module
- Output Channels: 24 discrete output channels
- Output Voltage: 24 VDC nominal
- Output Current: Up to 0.5 A per channel (solid-state)
- Communication Interface: IONet (GE proprietary Ethernet-based I/O network)
- Backplane Compatibility: Mark VIe IS200 / IS220 series terminal boards
- Isolation: Optically isolated outputs
- Operating Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Humidity: 5% to 95% RH, non-condensing
- Power Supply: Supplied via Mark VIe backplane (28 VDC)
- Dimensions: Standard Mark VIe module form factor
- Weight: Approx. 900 g
- HS Code: 853710
- Country of Origin: United States
- Certifications: CE, UL (per GE Mark VIe system certification)
Proven Application Environments
- Gas turbine control panels (GE Frame 6, 7, 9 series)
- Steam turbine governor and protection systems
- Combined-cycle power plant DCS integration
- Industrial compressor and pump control stations
- Offshore oil & gas platform automation
- Petrochemical plant safety instrumented systems (SIS)
- Mark VIe system expansions and I/O upgrades
Engineering Advantages
- Deterministic I/O response: IONet architecture ensures sub-millisecond scan cycle synchronization with the Mark VIe controller.
- Optical isolation: Protects controller backplane from field-side voltage transients and ground loops.
- Hot-swap capable: Supports online module replacement without system shutdown (with Mark VIe redundancy configuration).
- Diagnostics integration: Built-in self-test and fault reporting via ToolboxST engineering workstation.
- Redundancy support: Compatible with TMR (Triple Modular Redundancy) and dual-redundant Mark VIe architectures.
- Long service life: Conformal-coated PCB for resistance to humidity, dust, and industrial contaminants.
System Architecture & Signal Flow
The IS220YDOAS1AK resides on the Mark VIe I/O pack, receiving digital output commands from the Mark VIe controller (e.g., IS420UCSBH or IS420UCSCH) via the IONet Ethernet ring. Each output channel drives a solid-state switch that energizes or de-energizes the connected field device. The module reports channel status, diagnostics, and fault conditions back to the controller in real time. Terminal board connections are made via the associated YDOA terminal board (field wiring side), maintaining full galvanic isolation between the control network and field circuits.
Sourcing & Quality Verification
- Inventory status: In stock — ships within 1–3 business days
- Condition: New surplus / refurbished (tested and verified)
- Testing protocol: Full functional bench test performed prior to shipment; power-on, channel output verification, and IONet communication check
- Warranty: 12-month replacement warranty
- Packaging: Anti-static ESD bag + foam-lined export carton
- Traceability: Serial number and firmware revision documented per shipment
Procurement Process
- Submit your RFQ via support@konmask.com or place order directly on Konmask.com.
- Receive proforma invoice with lead time and shipping options within 24 hours.
- Payment via T/T bank transfer, PayPal, or credit card (Shopify Payments).
- Module ships with test report, packing list, and commercial invoice for customs clearance.
- DHL / FedEx / UPS express available; sea freight for bulk orders.
Technical FAQ
Q: Is the IS220YDOAS1AK compatible with Mark VI (not Mark VIe)?
A: No. The IS220 series is designed exclusively for the Mark VIe platform. For Mark VI systems, the equivalent module is from the IS200 series. Please confirm your controller generation before ordering.
Q: Can this module operate in a TMR configuration?
A: Yes. The IS220YDOAS1AK supports Triple Modular Redundancy when used with a compatible Mark VIe TMR controller and YDOA terminal board set.
Q: What firmware version is required?
A: Compatible with ToolboxST R04.x and above. Firmware version is documented on the module label and in the shipped test report.
Q: Do you provide a certificate of conformance (CoC)?
A: Yes. A CoC and functional test report are included with every shipment upon request.
Q: What is the lead time for bulk orders (>5 units)?
A: Typically 5–10 business days depending on stock availability. Contact us for volume pricing.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
