World Of Controls understands the criticality of your requirement and works towards reducing the lead time as much as possible.
IS230TBAIH3C - Analog Input/Output Terminal Board is available in stock which ships the same day.
IS230TBAIH3C - Analog Input/Output Terminal Board comes in UNUSED as well as REBUILT condition.
To avail our best deals for IS230TBAIH3C - Analog Input/Output Terminal Board, contact us and we will get back to you within 24 hours.
SPECIFICATIONS:
Part Number: IS230TBAIH3C
Manufacturer: General Electric
Series: Mark VIe
Product Type: Analog Input/Output Terminal Board
Number of channels: 12
Input span, transmitters: 1-5 V dc
Technology: Surface Mount
Size: 10.16 cm wide x 33.02 cm
Common Mode Voltage Range: ±5 V
Operating temperature: 30 to 65 °C
No.of Analog Voltage Inputs: 6
Repair: 3-7 Days
Weight: 2.00 lbs
Availability: In Stock
Country of Origin: United States
Manual: GEH-6721D
FUNCTIONAL DESCRIPTION:
IS230TBAIH3C is an Analog Input/Output Terminal Board manufactured and designed by General Electric as part of the VI Series used in GE Speedtronic Gas Turbine Control Systems. The Analog Input terminal board supports 10 analog inputs and two outputs. The 10 analog inputs accommodate two-wire, three-wire, four-wire, or externally powered transmitters. The analog outputs can be set up for 0-20 mA or 0-200 mA current. Inputs and outputs have noise suppression circuitry to protect against surges and high-frequency noise. There are three DC-37 pin connectors provided on TBAIH3C for connection to the I/O processors. Connections may be simplex on a single connector (JR1) or TMR using all three connectors. Connections may be through cables or directly to the electronics. In TMR applications, the input signals are fanned to the three connectors for the R, S, and T controls. TMR outputs operate by combining the currents of the three connected output drivers and determining the total current with a measuring shunt on the TBAIH3C. The TBAI then presents the total current signal to the electronics for regulation to the commanded setpoint. In the Mark VIe system, the PAIC I/O pack works with the TBAIH3C. Simplex and TMR systems are supported. In TMR systems, three PAIC packs plug into the TBAI.
INSTALLATION:
Connect the input and output wires directly to two I/O terminal blocks mounted on the terminal board. Each block is held down with two screws and has 24 terminals accepting up to #12 AWG wires. A shield terminal attachment point is located adjacent to each terminal block. TBAIH3C can accommodate the following analog I/O types:
OPERATION:
TBAIH3C provides a 24 V dc power source for all the transducers. The inputs can be configured as current or voltage inputs using jumpers (J#A and J#B). One of the two analog output circuits is 4-20 mA, and the other can be configured as 4-20 mA or 0- 200 mA. The following table displays the analog I/O capacity of TBAIH3C. Each 24 V dc power output is rated to deliver 21 mA continuously and is protected against operation into a short circuit. Transmitters/transducers can be powered by the 24 V DC source in the control system or can be independently powered. Jumper JO selects the type of current output. Diagnostics monitor each output, and a suicide relay in the I/O controller disconnects the corresponding output if a fault cannot be cleared by a command from the processor.
In a TMR system, analog inputs fan out to the three I/O controllers (VAIC or PAIC). The 24 V dc power to the transducers comes from all three controllers and is diode-shared on the terminal board. Each analog current output is fed by currents from all three controllers. The actual output current is measured with a series resistor, which feeds a voltage back to each I/O controller. The resulting output is the voted middle value (median) of the three currents.
WOC maintains one of the industry’s largest inventories of GE Distributed turbine control system replacement parts, ensuring fast access to critical components when you need them most. In addition to supplying unused, rebuilt, and fully tested boards backed by a comprehensive warranty, we also provide expert repair services to restore your faulty modules to optimal performance. With a dedicated team of specialists available 24/7, WOC delivers reliable technical support, OEM-grade solutions, and end-to-end assistance for all your automation, maintenance, and operational requirements. For pricing, availability, or repair inquiries, simply contact our team by phone or email. We’re always ready to help.
What is IS230TBAIH3C?
The IS230TBAIH3C is an analog input/output terminal board used in GE Mark VIe and Speedtronic turbine control systems. It supports 10 analog inputs and two analog outputs with configurable ranges for current and voltage. The board includes noise suppression, built-in diagnostics, and jumper-selectable configurations for flexible field wiring. It is compatible with simplex and TMR systems using PAIC I/O packs.
How are the analog outputs configured on this board?
The TBAIH3C provides two analog output channels, one fixed at 4–20 mA and the other configurable as 4–20 mA or 0–200 mA. Jumper J0 is used to select the desired output current range for the second channel. The outputs feature onboard diagnostics to detect faults and ensure reliable signal transmission. If a fault cannot be cleared, the system's suicide relay disconnects the affected channel for protection.
How does this board operate in a TMR (Triple Modular Redundant) configuration?
In TMR mode, each analog input is fanned out to all three controllers (R, S, and T) for redundant processing. The analog outputs combine the currents from all three controllers through a shunt resistor for accurate measurement. The system votes on the median current value to maintain high reliability and eliminate outliers. Transducer power is diode-shared from all three controllers to ensure continuous operation even if one source fails.
What connectors are used for communication with the I/O processors?
The TBAIH3C uses three DC-37 pin connectors for interfacing with the I/O controllers. Simplex systems typically use the JR1 connector, while TMR systems use all three connectors for redundancy. These connectors allow cable or direct-mounted configurations depending on the application. Signal distribution is automatically managed based on a simplex or TMR architecture.
