The GE IS200SCLTH1ABB is a core analog terminal board designed for the Mark VI Speedtronic control system. This module serves as the primary interface for analog I/O signals, providing secure termination points for sensors and actuators used in heavy-duty gas and steam turbine control applications.
Technical Functionality
The SCLT board facilitates the routing of analog signals to the internal control rack, supporting both simplex and redundant configurations. It features passive filtering and surge protection components to ensure signal integrity against high-frequency noise and electromagnetic interference commonly found in power generation environments.
Key Specifications
| Parameter | Specification |
| Model | IS200SCLTH1ABB |
| System Compatibility | Mark VI Speedtronic |
| Board Type | Core Analog Terminal Board |
| Input Channels | Supports RTD, Thermocouple, and 4-20mA inputs |
| Mounting | DIN-rail or Cabinet Standoff |
Operational Precautions
- Wiring Integrity: Ensure all shielded cables are correctly grounded at the terminal board to prevent ground loops that could distort sensitive analog readings.
- Component Safety: Avoid touching the surface-mount components; handle the board strictly by the edges or the plastic housing to prevent ESD damage.
- Redundancy Jumpering: When used in TMR (Triple Modular Redundant) systems, verify that all hardware jumpers are correctly positioned to match the system’s voting logic.
Common Questions Q&A
Q: Can the IS200SCLTH1ABB be used with both thermocouples and RTDs? A: Yes, the board is designed to handle multiple types of analog inputs, though specific channel configuration must be defined in the Mark VI software toolbox.
Q: Is this board “Hot Swappable”? A: While the board itself is passive, disconnecting live analog signals can impact control logic. It is recommended to bypass or inhibit associated control loops before removal.
Recommended Similar Models
- IS200SCLTH1A: The base version of the analog terminal board.
- IS200TBCIH1C: A contact input terminal board for discrete signaling.
- IS200TRLYH1B: A relay output terminal board for driving field actuators.
- IS200TBAIH1C: An analog input terminal board designed for high-density I/O.
- IS200VAICH1D: The corresponding VME analog input card that processes signals from this board.
Technical data and stock availability for the GE IS200SCLTH1ABB are available through our current industrial turbine control inventory.
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