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General Electric IS221YDOAS1B Digital output module
The GE IS221YDOAS1B is a Mark VIeS series safety digital output module (YDOA) with 12 safety digital outputs, meeting SIL 2/3 safety levels. It is suitable for safety control of turbines and critical processes, ensuring the safety and real-time performance of digital signal output.
Core Performance:
I/O and Electrical Capabilities
12 Digital Outputs: Form-C (single-pole double-throw) safety relay outputs, suitable for critical actuators such as motor start/stop, valve control, and trip circuits; single-channel overcurrent/short-circuit protection.
Safety and Isolation: SIL 2/3 certified, 2500Vrms isolation between channels, Class 1 Div 2 hazardous area compatibility, fail-safe output mode, diagnostic coverage ≥90%.
Diagnostic Functions: LED status indication for each channel, ControlST real-time diagnostics for output anomalies and link faults, supports TMR voting and deviation alarms.
Communication and Electrical
Communication: Dual 100M Ethernet ports, IONet/Modbus TCP redundant links, compatible with Mark VIeS TMR architecture, seamless fault switching.
Power Supply: 22.5-28.6VDC, overvoltage/reverse connection protection, operating temperature -30℃ to 65℃, vibration/shock resistant, suitable for harsh industrial environments.
Management and Maintenance: Supports hot-swapping, prevents fault propagation, suitable for continuous operation requirements of turbine control.
Compatible Terminal Blocks: IS200STCIS1A/2A, IS200TBCIS2C, etc., flexible installation.
Email: xmxblynn@163.com
Phone: +86 18059884797
Key Technical Parameters
Parameter Value
Model IS221YDOAS1B (Mark VIeS Safety Digital Output Module)
Compatible System GE Mark VIeS TMR Safety Control System
I/O Configuration 12 Form-C Safety Relay Outputs
Safety Class SIL 2/3 Certified, Fail-Safe Output, Diagnostic Coverage ≥90%
Communication Dual 100M Ethernet, IONet/Modbus TCP Redundancy
Power Supply 22.5-28.6VDC, Overvoltage/Reverse Connection Protection
Environment Class 1 Div 2, -30℃ to 65℃, Vibration/Shock Resistant
Mounting DIN Rail, Hot-Swap
Status In-Service Mark VIeS System Spare Part, Used for Replacing Safety Digital Output Modules
Typical Applications Turbine Safety Control: Adapted to Mark VIeS systems for gas/steam turbines, outputting valve control and trip circuit commands to ensure safe turbine operation.
Process Safety Monitoring: Used in ESD systems in industries such as petrochemicals and power generation, outputting emergency shutdown commands to meet SIL 2/3 functional safety requirements.
Equipment Safety Protection: Controls the start and stop of critical equipment such as motors, pumps, and fans, outputting protective control signals to prevent equipment overload/fault damage.
Spare Parts Replacement and Upgrade: Adapted to existing Mark VIeS systems, used for replacing fail-safe digital output modules to ensure continuity of safety control functions.
Email: xmxblynn@163.com
Phone: +86 18059884797
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