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TECHNICAL SPECIFICATIONS:
Part Number: IS210TTSAG1A
Manufacturer: General Electric
Series: Mark VI
Board Type: Trip Solenoid Interface Terminal Board
Analog output current: 0-20 mA
Excitation voltage: 24 V dc
Maximum Lead Resistance: 15Ω
Processor: 32-bit digital signal processor
Analog output current: 0-20 mA
Maximum applied VDC: 145V
Operating temperature: 30 to 50 °C
Size: 17.8 cm high x 33.02 cm
Frequency: 50 or 60 Hz
Repair: 3-7 Days
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
Manual: GEH-6421V
IS210TTSAG1A is a Trip Solenoid Interface Terminal Board designed and manufactured by General Electric as part of the Mark VI Series used in GE Speedtronic Gas Turbine Control Systems. The Trip Servo Interface (TTSA) terminal board provides four sets of power resistors in a configuration to support bipolar currents in two-coil trip servos. All connections to the board are made through pluggable barrier terminal strips. The board is the functional equivalent of the 194B5725 Servo Module in a smaller physical design. Power ratings are adequate to withstand a high dc line of 145 V dc and zero coil impedance. The TTSA function is independent of the control in use and is compatible with the Mark V, Mark VI, and Mark VIe control systems.
INSTALLATION:
Connect the wires for up to four trip servos to the terminal blocks to provide bipolar coil current, as shown in the following figure. Connect the barrier terminal strips to the appropriate tripping board and servo coils. Interface the pluggable barrier terminal strips to the corresponding tripping module backplane and servo coil assemblies, ensuring secure mechanical engagement and low-resistance electrical contact. All terminations should be torqued to specification to minimize contact impedance and prevent micro-arcing under high DC conditions. Before system energization, perform continuity verification, insulation resistance testing, and polarity validation to confirm wiring integrity.
OPERATION:
Fixed 125 V nominal dc power is applied to terminals 11 (positive) and 02 (negative). With no other power, a trip current is applied to the external solenoid coil pair with magnitude equal to 1⁄2 V dc / (10k + parallel solenoid impedance). If a 1 Ωservo coil is used and V dc is 125 V, the current in each coil equals 1⁄2 * 125 / (10,000 + 500) = 5.95 mA. When running current is desired in the servo coils, positive dc is applied to the TS#-POS terminal and negative dc is applied to the TS#-NEG terminal. This causes a reverse current in the coil with magnitude equal to [1⁄2 V dc / (4.4 k + parallel solenoid impedance)] trip current. For the previous example, this equals [1⁄2 * 125 / (4,400 + 500)] – 5.95 mA = 6.8 mA.
World of Controls maintains one of the largest inventories of GE Speedtronic control system replacement parts, offering both unused OEM components and professionally rebuilt units, all backed by warranty for assured quality and reliability. With a team of experienced professionals available 24/7, we provide expert support for part selection, technical troubleshooting, repair, exchange, and refurbishment services to help minimize downtime and maintain the efficient operation of your turbine control systems. Whether you need immediate availability, fast repair turnaround, or dependable technical guidance, our team is committed to delivering prompt and reliable solutions tailored to your operational requirements. Contact us today for pricing, availability, or assistance with your OEM needs.
What is GE IS210TTSAG1A?
It is a Trip Solenoid Interface Terminal Board used in GE Mark VI turbine control systems. It provides bipolar current to two-coil trip servos, which are essential for turbine trip and shutdown operations. This helps ensure safe and reliable protection of gas turbine systems. The board plays a critical role in maintaining proper trip servo functionality.
Which control systems are compatible with the Trip Solenoid Interface Terminal Board?
It is designed to work with multiple GE Speedtronic control systems, including Mark V, Mark VI, and Mark VIe. Its flexible design allows easy integration into different turbine control platforms. This compatibility makes it a practical replacement solution for older and upgraded systems. It helps reduce downtime during maintenance or upgrades.
What is the maximum voltage supported by the Trip Solenoid Interface Terminal Board?
The Trip Solenoid Interface Terminal Board can withstand a maximum applied voltage of 145V DC. This high-voltage capability ensures reliable operation in demanding industrial environments. It is built to handle strong DC line conditions without compromising performance. This makes it suitable for critical turbine protection systems.
How many trip servos can the Support Trip Solenoid Interface Terminal Board?
The board can support up to four trip servo assemblies at a time. It uses dedicated resistor configurations to provide the required bipolar current to each servo coil. This setup improves efficiency and simplifies wiring in turbine control applications. It is ideal for systems requiring multiple trip outputs.
How long does it take to repair the Trip Solenoid Board?
The typical repair turnaround time for the Trip Solenoid Interface Terminal Board at World of Controls is 3 to 7 business days. The exact time depends on the unit’s condition and the extent of repairs required. Each board is thoroughly tested after repair to ensure reliable performance. Fast repair service helps minimize turbine downtime.
