GE IS220YDOAS1A Discrete Output I/O Pack

GE IS220YDOAS1A Discrete Output Pack – Mark VIeS Series

General Electric IS220YDOAS1A functions as a Discrete Output I/O Pack within the Mark VIeS control system. This YDOA module provides a robust electrical bridge between I/O Ethernet networks and discrete output terminal boards. Engineers specify IS220YDOAS1A for reliable relay control and seamless system integration.

Core Technical Specifications

• Brand: General Electric (GE)
• Model: IS220YDOAS1A
• Series: Mark VIe and Mark VIeS
• Functional Acronym: YDOA
• Product Type: Discrete Output I/O Pack
• Buffered Outputs: 14
• Relay Control: Up to 12 relays maximum
• N28 Ripple: 280 mV pk
• N28 Maximum Current: 400 mA
• Ambient Temperature Range: -30°C to +65°C
• Shipping Weight: 0.8 lb
• Firmware: V05.00 and later
• ControlST Support: V06.01 and later versions
• Manuals: GEH-6725, Vol I and II
• Delta Method: Voting disagreement and diagnostic enable/disable
• Components: Common processor board + acquisition board

Input and Output Interfaces

• Dual RJ-45 Ethernet connectors interface with I/O networks. Supports one or two connections for redundancy.
• Three-pin power input mechanism supplies board power. Soft-start capability regulates inrush current automatically.
• DC-37 pin connector provides all discrete output signals. Direct mating with associated terminal board connectors.
• Compatible with TRLYS1B, D, and F terminal boards. Accepts terminal board-specific feedback for status verification.
• Fourteen buffered outputs deliver clean switching signals. Eliminates relay coil chatter and contact bounce issues.

Relay Control Capabilities

• Controls up to 12 electromagnetic relays simultaneously. Suitable for diverse industrial interlocking applications.
• Supports multiple relay types across terminal board variants. TRLYS1B, D, and F boards fully compatible.
• Accepts feedback directly from terminal boards. Confirms relay coil energization and contact status.
• N28 power characteristics carefully regulated. 280 mV pk ripple maximum, 400 mA current limit.
• Outputs fault-detectable through diagnostic routines. Power-up tests verify output channel integrity.

Redundancy and System Configurations

• Simplex operation requires one IS220YDOAS1A pack. Direct plug-in to terminal board connector.
• TMR redundant applications need three I/O packs. All three connect simultaneously to same terminal board.
• Dual Ethernet ports enable network redundancy. Recommend connecting ENET1 to R controller network.
• Pack functions seamlessly over either Ethernet port. Automatic failover without software intervention.
• Delta method voting detects output disagreements. Diagnostic enable/disable configurable via ToolboxST.

Diagnostic and Status Features

• Indicator LEDs provide real-time operational status. Visual aids for immediate fault identification.
• Power-up self-diagnostic tests verify critical components. Checks processor board, flash memory, Ethernet ports, and RAM.
• Continuous background diagnostics monitor pack health. Alerts operator to developing failure conditions.
• Terminal board feedback validates output execution. Confirms relay actually changed state after command.
• Firmware V05.00 and later support all diagnostic features. Earlier revisions may have limited functionality.

Installation and Configuration

• Mount terminal board securely in designated rack location. Ensure proper alignment before pack insertion.
• Plug IS220YDOAS1A directly into terminal board connector. One pack for simplex, three packs for TMR.
• Secure packs using threaded studs adjacent to Ethernet ports. Studs fit into terminal board-specific mounting bracket.
• Adjust bracket to eliminate right-angle force on DC-37 connector. One-time adjustment for product lifespan.
• Connect one or two Ethernet cables per system configuration. Apply power via side connector with soft-start active.
• Configure using ToolboxST application. Set voting parameters and diagnostic preferences.

Environmental and Physical Specifications

• Ambient temperature rating: -30°C to +65°C. Suitable for unenclosed turbine control applications.
• Shipping weight: 0.8 lb (0.36 kg). Lightweight modular construction.
• Original GE manufacture with USA origin. IS220 series confirms Mark VIeS assembly pedigree.
• A-rated primary revision indicates mature production. Field-proven reliability across global installations.
• Part of final Speedtronic technology series. Mark VIeS represents GE's patented control system legacy.

Packaging and Delivery

• Each IS220YDOAS1A ships in anti-static shielded packaging. ESD foam protects all connectors and components.
• Package includes one GE YDOA Discrete Output Pack. No cables, terminal boards, or mounting hardware included.
• Direct drop-in replacement for existing YDOA modules. Identical form factor and connector layout.
• We ship via FedEx, UPS, or DHL. Tracking information provided within 24 hours of dispatch.
• International export packaging available. Double-boxed with moisture barrier for air freight.

Contact Information

• Email inquiries: sales@nex-auto.com
• WhatsApp support: +86 153 9242 9628
• Response time: Same business day for all technical and commercial questions.

Frequently Asked Questions

Q: What is the difference between IS220YDOAS1A and IS220YDOAS1?
A: IS220YDOAS1A is the A-rated primary revision with enhanced diagnostic firmware. It supersedes the original IS220YDOAS1.

Q: Can this pack control AC relays or only DC relays?
A: IS220YDOAS1A provides DC buffered outputs. Use TRLYS1B/F terminal boards with interposing relays for AC loads.

Q: How many packs do I need for a simplex Mark VIeS system?
A: Simplex configuration requires exactly one IS220YDOAS1A pack per terminal board. TMR requires three packs.

Q: What does the power-up self-test verify?
A: Tests processor board hardware, flash memory integrity, Ethernet port connectivity, and RAM functionality.

Q: Is ToolboxST included with the pack purchase?
A: No. ToolboxST is GE proprietary software purchased separately. We supply only the hardware I/O pack.

Partner: AutoNex Controls Limited – Authorized GE Speedtronic parts supplier.