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Technical specifications for IS220YDOAS1AJ
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Manufacturer:General Electric
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Product Category:Gas Turbine Control
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Tariff Code:8537101190
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Counliy of origin:USA
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Module family:IS220YDOAS1A
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Function:Safety discrete output I/O pack
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Supply range:27.4 to 28.6 V DC
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Nominal supply:28.0 V DC
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Maximum supply current:0.71 A DC
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Approved terminal boards:TRLYS1F / TRLYS2F family
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Ambient range:-30 to +65 degrees C
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System family:Mark VIeS
Information
Overview
Manuals
Common Applications
Product Precautions
GE IS220YDOAS1AJ provides safety discrete-output interfacing between the Mark VIeS control system and an approved relay terminal board.
- Safety discrete-output function
- 28 V DC nominal pack supply
- Approved TRLYS terminal-board family
- Published -30 to +65 degrees C range
The pack receives output commands from the safety control architecture and operates field circuits through an approved terminal board. The complete identity, terminal-board pairing and application safety record must remain synchronized.
Important Notice: The official guide confirms the IS220YDOAS1A family. Retain the full IS220YDOAS1AJ marking and verify the installed terminal board before any replacement decision.
GE IS220YDOAS1AJ Manuals & Downloads
GE IS220YDOAS1AJ Manufacturer Manual Excerpt (PDF)GE IS220YDOAS1AJ Installation & Commissioning Guide (PDF) The manufacturer excerpt contains selected unchanged official pages. The installation guide organizes identification, preparation, restoration and witnessed acceptance.
Safety relay actuation
Transfers approved safety output commands to relay terminal-board circuits.
Turbine protection output
Supports documented discrete trips or permissives in a Mark VIeS application.
Exact pack replacement
Restores the YDOAS1A-family output position with its approved terminal board.
Safety-loop maintenance
Keeps hardware identity, logic assignment and witnessed field response aligned.
GE IS220YDOAS1AJ installation checks: preserve the exact identity, installed configuration and witnessed acceptance record throughout the work.
1
Read the complete IS220YDOAS1AJ identifier from the pack.
2
Record the approved TRLYS terminal-board reference and connector position.
3
Place the safety function in its approved maintenance state.
4
Isolate pack power and every independently supplied output circuit.
5
Retain output mapping, voting context and cause-and-effect references.
6
Inspect connectors, grounding and terminal-board condition before seating.
7
Restore only the validated safety application and channel assignment.
8
Witness every affected output and final safety response before release.
Technical notes
For IS220YDOAS1AJ, retain the exact manufacturer identity, installed configuration and source revision. Return the equipment to service only after the documented diagnostics and model-specific field response are witnessed.
FAQ View All FAQ
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What function is documented for GE IS220YDOAS1AJ?It is a Mark VIeS safety discrete output I/O pack in the YDOAS1A family.
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Which terminal boards are approved with GE IS220YDOAS1AJ?The official guide lists the IS200TRLYS1F, IS200TRLYS2F, IS400TRLYS1F and IS400TRLYS2F families for YDOAS1A.
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What supply range applies to GE IS220YDOAS1AJ?The YDOAS1A family is rated for 27.4 to 28.6 V DC with a 28.0 V DC nominal supply.
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What maximum pack current is listed for GE IS220YDOAS1AJ?The published maximum supply current is 0.71 A DC.
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Which ambient range is published for GE IS220YDOAS1AJ?The equipment guide lists -30 to +65 degrees Celsius for the YDOAS1A family.
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Why must the terminal board be recorded for GE IS220YDOAS1AJ?The pack operates through an approved relay terminal board whose circuit arrangement defines the field interface.
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What safety records must be retained for GE IS220YDOAS1AJ?Retain the channel assignment, voting context, cause-and-effect record, output wiring and validated application revision.
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How is GE IS220YDOAS1AJ functionally accepted?Prove each affected output and the intended safety response under the approved test procedure before release.
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