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General Electric ISx2yPDOAH1B Relay output
The IS220PDOAH1B is a 12-channel discrete output module from the GE Mark VIe series PDOA type. It is adapted for switching drives in turbine and critical process control, featuring redundant 24-28VDC power supply, redundant IONet communication, and industrial-grade noise immunity design. It is a core discrete output component of the Mark VIe distributed I/O system.
Core Performance:
Signal Output Capabilities:
Channels: 12 relay outputs, compatible with electromagnetic relays (TRLYH1B/C/D/F terminal blocks) or solid-state relays (TRLYH1E terminal block). A single channel failure does not affect other channels.
Output Characteristics: Rated 24-28VDC, rated contact current 15A (250VAC/30VDC), supports dry/wet contact output, compatible with motor starters, valve actuators, etc.
Diagnostics: Channel-level feedback monitoring, LED indication of channel status, ControlST remote diagnostics, and rapid fault location.
Power Supply and Communication Characteristics
Power Supply: 24-28VDC redundant input, hot-swappable design, maintenance without interrupting system operation.
Communication: Dual 100M full-duplex Ethernet (IONet redundancy), compatible with Mark VIe TMR/DCS, seamless switching in case of link failure.
Expansion: Supports terminal block expansion, suitable for large-scale discrete signal output scenarios.
Safety and Environmental Characteristics
Certifications: Class 1 Div 2/ATEX explosion-proof, suitable for deployment in hazardous areas.
Environment: Operating temperature -30℃ to 65℃, vibration/shock resistant, adaptable to harsh industrial environments.
Protection: Overvoltage/reverse connection protection, fault isolation, preventing system fault propagation.
Email: xmxblynn@163.com
Phone: +86 18059884797
Key Technical Parameters
Parameter Value
Model IS220PDOAH1B (Mark VIe PDOA 12-channel Discrete Output Module)
Compatible System GE Mark VIe TMR/DCS Control System
Output Channels 12-channel relay output, compatible with electromagnetic/solid-state relays
Rated Output 24-28VDC, contact rated 15A (250VAC/30VDC)
Communication Interface Dual 100M full-duplex Ethernet (IONet redundancy)
Power Supply Input 24-28VDC redundancy, supports hot-swapping
Operating Temperature -30℃ to 65℃
Installation Method Standard Mark VIe rack mount, compatible with TRLY series terminal blocks
Compliance Class 1 Div 2, ATEX, CE/UL
Status Mark VIe in-service spare part, used for replacing discrete output modules
Typical Application Turbine control signal drive: compatible with gas/ Steam turbine systems drive discrete loads such as valves, relays, and indicator lights for turbine start-up and shutdown, protection interlocks, and status indication.
Process control discrete drives: In petrochemical/power DCS/ESD systems, they are used for pump/fan/valve on/off control, meeting SIL 2/3 safety requirements.
Redundant system deployment: Dual power supplies + IONet redundant communication ensure signal link and power supply continuity, improving system availability.
Spare parts replacement and upgrades: Compatible with existing Mark VIe systems, used for replacing faulty discrete output modules, supporting automatic reconfiguration for convenient maintenance.
Email: xmxblynn@163.com
Phone: +86 18059884797
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