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GE IS200TRLYS1BGG｜Terminal Relay Board｜
Functional Overview
This terminal board provides discrete signal isolation, conversion, and relay output control for the Mark VI system. It is designed to interface with field relays, contactors, switches, and actuators while offering real-time relay coil diagnostics and compatibility with both DC and AC field power sources. The board supports high-reliability discrete control in single and redundant protection/control systems.
Core Functions
Discrete signal isolation and conversion
12-channel Form-C relay outputs
Relay coil current monitoring and diagnostics
Adaptability to on-site relays, contactors, and switches
Support for 120/240 V AC partial power protection
Designed for high-speed networked I/O operation in Mark VI systems
Relay Configuration
Relays:
12 × pluggable Form-C magnetic holding relays
Diagnostics:
Continuous coil current monitoring
Fault detection for open/shorted coils
Enhances maintainability and operational safety in critical applications
Redundancy Support
Fully compatible with:
Simplex
Dual-redundant
TMR (Triple-Modular Redundant) systems
Suitable for discrete control and protection logic in redundant architectures
Power Supply & Protection
Field power compatibility:
24 V DC
125 V DC
120 V AC
240 V AC
Selection method: Jumper-selectable
Protection: Independent fuse protection for each power option
Logic power:
Mark VI rack supply (+5 V / +15 V / –15 V DC)
Typical power consumption: ~8 W
Interface & Wiring
Terminal blocks:
2 × 24-point terminal blocks
48 terminals total for field connections
Communication interfaces:
4 × D-type connectors
3 × 3-pin plug connectors
Provides communication and control interfacing with the PPRO module
Diagnostic & Indication Features
Real-time relay coil current monitoring
Dual-color LED indicators (red/green) for:
Normal operation
Fault and diagnostic status
Supports faster troubleshooting and preventive maintenance
Environmental Specifications
Operating temperature: 0 °C to +60 °C
Storage temperature: –40 °C to +85 °C
Mechanical Characteristics
Form factor: Mark VI standard I/O terminal board
Dimensions (approx.): 178 × 330 × 25 mm
Weight (approx.): 1.0 kg
Installation & Protection
Installation method:
Mark VI standard I/O rack slot installation
Supports hot swapping
Protection rating: IP20
Intended for installation inside control cabinets
Compatibility & Applications
Fully compatible with Mark VI PPRO modules
Suitable for discrete control in:
Single-redundant systems
Dual-redundant systems
Triple-redundant (TMR) systems
Typical applications include:
Discrete actuator and contactor control
Alarm and interlock signaling
Safety-related discrete outputs
Turbine auxiliary system control
GE IS200TRLYS1BGG｜Terminal Relay Board｜
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By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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