GE IS200TRPGH1B IS200TRPGH1BDD | Terminal Board

Core Function and System Role

The GE IS200TRPGH1B terminates analog output signals for Mark VI systems. Specifically, this board connects the controller to field actuators and valves. Moreover, it provides signal conditioning and drive capability for each channel. The IS200TRPGH1BDD variant includes conformal coating for harsh industrial environments.

Technical Specifications Overview

This terminal board features sixteen independent analog output channels. Each channel delivers ±10 Vdc or 4-20 mA signals. Furthermore, the board provides 14-bit resolution for precise actuator control.

Parameter	Specification
Part Number	IS200TRPGH1B / IS200TRPGH1BDD
Type	Terminal Board / Analog Output Module
Analog Outputs	16 Channels
Voltage Range	±10 Vdc
Current Range	4-20 mA (Selectable)
Resolution	14 Bits (16384 Counts)
Accuracy	±0.2% of Full Scale
Output Impedance	100 Ω (Voltage)
Load Resistance	>2 kΩ (Voltage), <500 Ω (Current)
Drive Capability	±10 mA (Voltage), 24 Vdc Loop Power (Current)
Response Time	<10 ms
Status Indicators	16 Green LEDs
Power Supply	24 Vdc ±15%
Connector Types	2 x 50-pin D-sub, 4 x Terminal Blocks
Dimensions (W x H x D)	230 x 135 x 30 mm
Weight	0.88 kg
Onboard Energy Storage	8 x 100 µF, 35V Capacitors

Connector Layout and Component Count

The board uses four terminal blocks for field wiring connections. For instance, block TB1 handles channels 1 through 4. Meanwhile, block TB2 manages channels 5 through 8. Blocks TB3 and TB4 handle channels 9 through 16. Two 50-pin D-sub connectors receive command signals from the controller. The IS200TRPGH1BDD adds a thick conformal coating over all components.

Energy Storage and Signal Integrity

This terminal board includes local capacitance for stable output drive. Specifically, eight 100 µF capacitors filter the 24 Vdc supply. Therefore, the board maintains accurate analog outputs during power fluctuations. Additionally, onboard LED indicators show each channel’s status. For example, a green LED illuminates when an output is active. An off LED indicates a disabled or faulted channel.

Diagnostic Features and Fault Detection

The board continuously checks each output channel for open or shorted loads. Consequently, it detects wiring faults within 100 milliseconds. Moreover, the GE IS200TRPGH1B IS200TRPGH1BDD includes output readback for loop verification. This feature confirms that actuators receive the correct command signal. An onboard status register reports all channel health to the main controller.

Maintenance and Hot Replacement

You can replace this terminal board without powering down the turbine. Thus, mean time to repair remains under ten minutes. The board stores no configuration data locally. Therefore, you simply install the replacement and resume normal analog output control.

Industrial Applications

This terminal board works inside GE Mark VI control cabinets. For reliable GE analog output termination, the IS200TRPGH1B and IS200TRPGH1BDD deliver exceptional performance. They provide robust signal conditioning for steam and gas turbine actuator and valve control.