IS200TPROS1C GE Mark VIe

The IS200TPROS1C is a dedicated terminal board for PPRO (Backup Turbine Protection) and YPRO (Mark VIeS Safety Backup) modules in the GE Mark VIe series of control systems. Featuring a barrier-style (screw-terminal) design, it provides a stable and secure signal interface in hazardous locations, extreme temperature environments, and critical control systems requiring high availability.

• Product Type: Removable Screw Terminal Block
• System: Mark VIe / Mark VIeS Control System
• Primary Application: For signal connection and termination in gas turbine/steam turbine control systems
• Compatible with Euro-style terminal blocks for easy on-site wiring
• Clear wire gauge and torque requirements ensure a secure connection
• Operates within a wide temperature range of -40°C to +70°C

Installation Location: This terminal block is installed at the bottom of I/O chassis such as the IS220PPROS1B or in a designated slot.

Wiring Procedure: First, use a screwdriver to loosen the terminal screws. Then insert the stripped copper wire (we recommend using cold-pressed terminals of the appropriate size). Use a torque screwdriver or wrench to tighten the screws to the standard torque of 9.6 in-lb (1.1 Nm) to complete the connection.

In a natural gas transmission pipeline, the user has deployed a Mark VIe control system in conjunction with the IS220PPROS1B I/O module and the IS200TPROS1C terminal board. This terminal board is used to interface with PT signals and speed sensors, enabling real-time monitoring of turbine speed and vibration signals, and automatically switching to backup protection logic in the event of a main control system failure to ensure safe shutdown of the equipment.

Can the IS200TPROS1C be purchased separately?
Yes, it is listed as a standalone accessory and is typically used in conjunction with the IS220PPROS1B chassis.

How does it differ from the IS200SPROH1A?
The IS200TPROS1C is a terminal board (for wiring), while the IS200SPROH1A is typically a processor or main control board used in conjunction with PPRO modules (specific details depend on the full model suffix). The two serve different roles within the system.

Does the IS200TPROS1C require additional overcurrent protection?
Yes. The documentation explicitly states that the IS200TPROS1C itself does not provide overcurrent protection for circuits connected to a live power source. Users must provide an external overcurrent protection device (such as a fuse) that complies with UL or IEC standards.